41 jobs found in england

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Blockchain's data services team is responsible for building the leading Bitcoin block explorer and supporting services. We build the technology that allows millions of users access to the blockchain through our Explorer and Wallet. We are looking for experienced software engineers to join our data services team, to rapidly create, iterate and launch high-quality software that empowers users all over the world. We are tackling the most interesting problems in the crypto space, rapidly and securely scaling a distributed platform that touches millions of people a day. We want you to join us! Our engineering teams are involved in all aspects of the product lifecycle, from idea generation, design, prototyping, planning, execution and shipping. As a senior software engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO: Design and implement highly-available, fault-tolerant distributed applications interacting with the major cryptocurrency networks. Build the data services layer for an Alexa Top 1000 website. Work on an industry-leading product with millions of users. Be a part of a dedicated team committed to stability and robustness. Build reusable, modular libraries for use across Blockchain's product line. Optimize existing systems for performance and scalability. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. Experience building and launching cryptocurrency applications or infrastructure Good knowledge of the infrastructure and ecosystem of at least one major cryptocurrency - especially Ethereum or Bitcoin, but experience on any digital currency or blockchain project is welcome. Understanding of algorithms, data structures, databases and large-scale websites. You thrive on learning new technologies and don't believe in one-size-fits-all solutions. An understanding of how all the pieces fit together ( front-end, database, network layer, etc.) and how they impact the performance of your application. You pride yourself on efficient monitoring, strong documentation and proper test coverage. Preferably experience in at least one JVM based language such as  Kotlin, Java, or Scala. CS degree or equivalent experience. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London (Shoreditch) and New York (SoHo). Unlimited vacation policy; work hard and take time when you need it. Unlimited books policy; order the technical resources you need or simply pick something up from our company library. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. London Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. New York Benefits: Medical, Dental, Vision, 401K, Flexible Spending Account, Commuter, Life, Short Term & Long Term Disability. APPLICATION: Favorite GIF. LinkedIn profile. Link to github, stackoverflow, personal website and/or blog (if applicable).  

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. This is an opportunity to join our global User Operations Support team and ensure the best user experience possible. Reporting to the User Operations Lead, you are on the front line engaging with a growing community of users across Blockchain's portfolio of products. WHAT YOU WILL DO: Onboard large volumes of customers, carrying out KYC and AML compliance checks. Resolve incoming questions from users via our ticket system (Zendesk). Document support issues and contribute to the Blockchain knowledge base. Act as a bridge between our user operations, product, and engineering teams on product issues and bug resolution. Provide clear and detailed daily updates on challenges faced and suggestions for improvement. Document change requests and needs via our Jira system and escalate appropriately.   WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. An understanding of Know Your Customer (KYC) and/or Anti Money-Laundering (AML) processes. Experience with customer or technical support, a plus if you've used ZenDesk before. Passion for creating a positive user experience that is responsive and organized. Must be able to work in a fast-paced, diverse work environment with great follow through on tasks. Fluent in English speaking, reading and writing. Ability to work one weekend day (with one weekday off). Knowledge of cryptocurrencies is a plus and the willingness to learn about crypto is vital. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London Unlimited vacation policy; work hard and take time when you need it. Access to training and other resources as needed. Catered team lunch every Monday, Wednesday, and Friday. Full-time salary based on experience and equity in an industry-leading company. London Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability.   APPLICATION: LinkedIn profile. Link to personal website and/or blog (if applicable).

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a Senior Product Manager to join our team to lead the design and development of new financial products for Blockchains existing and new users. This is a unique, once in a career, opportunity to deliver large scale financial systems built from scratch on open source software. We are looking for someone who has experience in, and understands the issues with, delivering state of the market internet-scale systems across multiple work streams. Experience working in FinTech or Financial Markets is a plus. WHAT YOU WILL DO: Work in collaboration with the engineering and business leaders to design and deliver complex, large scale financial systems involving multiple work streams, releases and deployments. Understand and plan for the complexity of leading across multiple teams to deliver internet-scale applications. Uncover critical dependencies and risks to product launch.   Deploy and use best practices to measure, understand and optimize the success of the products you own. Based on product vision & strategy, design new features and propose improvements to existing features to maximize impact. Work well across disciplines and stakeholders to coordinate between workstreams to drive impactful product launches. Identify and communicate requirements and coordinate between these workstreams. Collect, maintain and disseminate project information to stakeholders on an ongoing basis. Manage timelines and follow multiple product roadmaps to organize timely feature releases and minimize release delays. Analyze information from the User Operations team, user surveys and usability testing to identify and prioritize actionable feedback. Drive effective teamwork, communication, collaboration and commitment across multiple departments. WHAT YOU WILL NEED: You are driven, curious and proactive. Experience working on cross functional teams to deliver internet applications at scale. Ability to analyze and use data to make informed product decisions. Excellent verbal and written communication skills to write thorough feature requirement documents and work with stakeholders and upper management. Experienced at compiling implementation timelines into project roadmaps. Detail and design oriented and always thinking of the end-user experience. A proven track record of shipping products in a technical environment and working with developers on a day-to-day basis. Bonus: Knowledge of, or experience in, the digital currency, banking or FinTech. COMPENSATION & PERKS: Amazing and accessible office location in the heart of  New York. Unlimited vacation policy; work hard and take time when you need it. Unlimited books policy; order the technical resources you need or simply pick something up from our company library. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. New York Benefits: Medical, Dental, Vision, 401K, Flexible Spending Account, Commuter, Life, Short Term & Long Term Disability. APPLICATION: LinkedIn profile. Link to github, stackoverflow, personal website and/or blog (if applicable).

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a Financial Accountant  to join our growing finance team. WHAT YOU WILL DO: Reconcile bank, cryptocurrencies wallets and credit card accounts. Providing month end support and reporting Review T&E charges and ensure spending is in line with company's policy. Assist manager with bi-weekly payroll processing. Ensure all invoices are coded correctly and paid in a timely manner. Prepare journal entries for manager's approval. Prepare general ledger account analysis. Participate in the month end close process. Maintain P&L and balance sheet reconciliations and research missing expense and any large variances. Assist in the preparation of month end variance analysis. Assist with year-end audit work. Perform ad-hoc projects. Assist with establishing internal controls procedures and processes. Assist with VAT and R&D credit filing and reconciliation. Assist Finance team in the day to day finance functions when necessary. Act as backup for members of the finance team as required. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. Bachelor's degree in Finance or Accounting. ACCA, ACA, or equivalent qualification strongly preferred. 3+ years of experience working in a similar or relevant role. Experience with international accounting (Luxembourg, United States, and United Kingdom is a plus). Strong presentation and communication skills when working with internal teams and external vendors. Ability to prioritize, organize and execute quickly and efficiently in a dynamic environment with ever-changing and competing demands. Ability to meet deadlines.   COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company London Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability.   APPLICATION: Resume/CV and LinkedIn profile. Your favorite GIF.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Blockchain's development team is building technologies that are revolutionizing the financial services industry by empowering millions across the globe to authenticate and transact immediately and without costly intermediaries. We are looking for a Front End Engineer to join our growing development teams in order to rapidly create, iterate and launch high quality software that empower users all over the world. Ultimately, you should be able to adapt easily to meet the needs of our fast growth and the rapidly evolving crypto ecosystem. Our development team is tackling some of the most interesting problems in the crypto space while rapidly and securely scaling a distributed platform that touches millions of people a day. We want you to join us! WHAT YOU WILL DO: Build beautiful user interfaces across our exciting product portfolio. Work closely with our designers through to implementation to best serve the needs of current a future customers. Write well-tested, reliable code for use by millions of users who use our wallet. Proactively collaborate with team members, ensuring the sharing of knowledge and efficient division of labour. Work on the most interesting and challenging problems in the cryptocurrency space. Get exposure to the latest technologies and developments in a technology and product driven company. Work on an industry-leading product with millions of users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. At least 2+ years' experience working with JavaScript and client-side web applications preferred. You thrive on learning new technologies and don't believe in one-size-fits-all solutions. That being said, you can expect to work with ES6, Styled Components, and React/Redux. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You rely on others' candid feedback for continuous improvement. You understand requirements beyond the written word and have a sharp eye. Strong analytical and problem solving skills. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Resume and/or CV and LinkedIn profile. Link to Github or Stackoverflow. Personal websites or blogs (if applicable). Your favourite GIF.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time.   We are looking for a talented quality assurance tester to join our team. This an important role where you will work on web and mobile applications that touch millions of users!   WHAT YOU WILL NEED: Strong experience writing and executing detailed end-to-end test cases based on requirements. Experience analyzing functionality and identifying areas of weakness in a build to ensure timely but thorough testing. Experience working as part of a team to defined testing schedules. Excellent organizational skills and attention to detail. Strong verbal and written communication skills. Familiarity with mobile (iOS, Android) software.   DESIRABLE: ISTQB foundation, advanced or expert certification. Crypto interest or knowledge. Experience working with or administering JIRA.   WHAT YOU WILL DO: Become an expert on the features and functionality of our web and mobile products to ensure quality and consistency in a fast-paced environment. Write and review detailed test specifications outlining test approach. Write and execute end-to-end test cases / user scenarios based off of requirements, designs, and delivered software. Be a member of a team of testers to verify functionality, validate usability, and ensure consistency across browsers and mobile and web platforms (Windows, Mac, iOS, Android). Work across teams to coordinate testing schedules. Work across design, development, and product management teams to triage and prioritize issues for launch. Collaborate with automated test developers to define appropriate areas for testing. Deliver detailed bug tracking and reporting on testing progress to project stakeholders. Provide a final release or no-release recommendation to management.   APPLICATION: Resume/CV or LinkedIn profile. Link to your portfolio. Your favourite GIF.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a Senior Front End Engineer to join our growing development team in San Francisco, CA, London, or New York City to rapidly create, iterate, and launch high quality software that empower users all over the world. Ultimately, you should be able to adapt easily to meet the needs of our fast growth and the rapidly evolving crypto ecosystem. Our development team is tackling some of the most interesting problems in the crypto space while securely scaling a distributed platform that touches millions of people a day. We want you to join us! WHAT YOU WILL DO: Build beautiful user interfaces across our exciting product portfolio, working closely with our designers through to implementation to best serve the needs of current and future customers. Work across teams in helping guide engineering vision, architect important systems, and participate in long-term planning. Write well-tested, reliable code for use by millions of users who use our products. Work on the most interesting and challenging problems in the cryptocurrency space. Get exposure to the latest technologies and developments in a technology and product driven company. Mentor engineers, both junior and senior. Work on an industry-leading product with millions of users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. At least 5+ years experience working with JavaScript and client-side web applications preferred. Previous background of senior technical leadership. Experience with cryptocurrency is a very nice to have. Experience with agile tools like JIRA and Confluence. You thrive on learning new technologies and don't believe in one-size-fits-all solutions. That being said, you can expect to work with ES6, Styled Components, and React/Redux. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You rely on others' candid feedback for continuous improvement. You understand requirements beyond the written word and have a sharp eye. COMPENSATION & PERKS: Amazing and accessible office locations in the heart of San Francisco, New York & London. Unlimited vacation policy; work hard and take time when you need it. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Resume and/or CV and LinkedIn profile. Link to Github or Stackoverflow. Personal websites or blogs (if applicable). Your favourite GIF.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Blockchain's engineering team is building technologies that are revolutionizing the financial services industry by empowering millions across the globe to authenticate and transact immediately and without costly intermediaries. We are looking for a Senior iOS engineer to join our growing engineering team, to rapidly create, iterate and launch high-quality software that empowers users all over the world. Ultimately, you should be able to adapt easily to meet the needs of our fast growth and the rapidly evolving crypto ecosystem. Our development team is tackling some of the most interesting problems in the crypto space while rapidly and securely scaling a distributed platform that touches millions of people a day. We want you to join us! WHAT YOU WILL DO: Be part of a team that is building industry-leading bitcoin wallets for users around the globe: View on App Store Write well-tested, reliable code for use by millions of users who use our wallet. Proactively collaborate with team members, ensuring the sharing of knowledge and efficient division of labour. Work on the most interesting and challenging problems in the cryptocurrency space. Get exposure to the latest technologies and developments in a technology and product driven company. Work on an industry-leading product with millions of users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. At least 2+ years experience working with iOS and Objective C / Swift and have at least one or two apps in the App store. Experience with reactive programming (RxSwift or otherwise) is a bonus. Experience with Crypto is a bonus. Unit testing and achieving a high level of coverage, should be second nature to you. You think a working proof-of-concept is the best way to make a point. You feel ownership over everything you ship-you'd never call code "released" until you're confident it's correct. To be passionate about pixel perfect design and how to apply it to the apps. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You rely on others' candid feedback for continuous improvement. Excellent communication skills to liaise with various team members around the world . Strong analytical and problem-solving skills. You enjoy learning new things. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Resume and/or CV and LinkedIn profile. Link to Github or Stackoverflow. Personal websites or blogs (if applicable). Your favourite GIF.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a Senior Site Reliability Engineer to join our engineering team as we tackle some some of the most interesting problems in the crypto space, like how do we securely scale a distributed financial platform that touches millions of people a day. Site Reliability Engineering (SRE) and DevOps is an engineering discipline that combines software and systems engineering to build and run large-scale, distributed and fault-tolerant systems. SRE ensures that Blockchain's services are reliable and available to meet our users and the business needs, and delivers a fast rate of improvement while keeping an ever-watchful eye on capacity and performance. At Blockchain, SRE is also a mindset and a set of engineering approaches to running better production systems-we build our own creative engineering solutions to operations problems. SREs are responsible for the big picture of how our systems are designed for operability, how they relate to each other, and we use a breadth of tools and approaches to solve a broad spectrum of problems. Practices such as limiting time spent on operational work, blameless postmortems and proactive identification of potential outages factor into iterative improvement are key to both product quality and interesting and dynamic day-to-day work. The SRE/DevOps environment at Blockchain is a work in progress - we are looking for an experienced, senior SRE to provide engineering leadership across the SRE team and the broader engineering team. Are you ready for a challenge? WHAT YOU WILL DO: Provide leadership across the engineering team, help develop processes and best practices, provide design guidance. Solve operational problems writing code Build large-scale systems  and optimize existing systems for scalability. Use a wide variety of open source technologies and tools. Work in close collaboration with developers. Participate in an on-call rotation. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. Strong background in Linux/Unix Administration. You have a passion for sense of ownership, learning new technologies, troubleshooting and and designing large-scale distributed systems. Strong analytical skills. Experience with software design, algorithms, and data structures. Good knowledge of one or more scripting languages (Python/Ruby preferred). Good knowledge of one or more of the following:  C, C++, Java, Go. Good knowledge of container solutions. Experience working with cloud solutions (AWS or GCP). Bonus: Experience working with, or knowledge of, the bitcoin protocol. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: LinkedIn profile. Link to Github, Stackoverflow, personal website and/or blog (if applicable). Your favourite GIF

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for experienced software engineers from a variety of technical backgrounds with a proven track record in building low latency, scalable and highly performant systems. Our engineering teams are involved in all aspects of the product lifecycle, from idea generation, design, prototyping, planning, execution and shipping. As a senior software engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO: Build low latency, scalable and highly performant services using the most appropriate languages (e.g. C/C++, Java, Kotlin) and tools (Kafka, Cassandra). Be a part of a dedicated engineering team committed to rapidly shipping, and iterating on products that directly impact millions of users. Be at the forefront of the cryptocurrency ecosystem building out a new set of financial services, systems and architecture. Gain exposure to an array of open-source technologies such as Kafka, PostgreSQL, Redis, Cassandra, RabbitMQ, etc. Ensure security is at the forefront of everything you do, employing advanced encryption schemes to secure user and company data. Work within interdisciplinary teams to continually deliver the highest quality products to our users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. You possess an innate curiosity, and thrive on learning new technologies. You take a pragmatic approach to developing clean solutions to complex problems. You have experience building and shipping highly-available, fault tolerant, low latency, scalable architectures. You pride yourself on consistent high levels of test coverage, strong technical documentation and effective monitoring. Understanding of algorithms, data structures, databases and large-scale systems. An appreciation of the entire stack (including but not limited to front-end, service-oriented architecture, message brokers, databases, network layers, etc.) and how they impact the performance of your application. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Unlimited books policy; order the technical resources you need or simply pick something up from our company library. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Favorite GIF. LinkedIn profile. Link to Github, Stackoverflow, personal website and/or blog (if applicable).

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for experienced software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in evolving the core platform which drives our retail products. Our engineering teams are involved in all aspects of the product lifecycle, from idea generation, design, prototyping, planning, execution and shipping. As a senior software engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO: Be at the forefront of the cryptocurrency ecosystem building out new distributed software to handle our rapidly growing user base of 27M+ wallets. Become a key member of a dedicated engineering team committed to rapidly shipping, and iterating on products that directly impact millions of users. Advocate best practices, code quality, test coverage and drive technical discussions. Gain exposure to an array of open-source technologies such as Kafka, PostgreSQL, Redis, Cassandra, RabbitMQ, etc. Optimise existing systems for scalability, extensibility and performance whilst building out reusable, modular code for use across Blockchain's products. Ensure security is at the forefront of everything you do, employing advanced encryption schemes to secure user and company data. Work within interdisciplinary teams to continually deliver the highest quality software to our users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. You possess an innate curiosity, are a strong advocate for the best engineering practices and thrive on learning new technologies. You take a pragmatic approach to developing clean solutions to complex problems. You have experience building and shipping highly-available, fault tolerant distributed systems. You pride yourself on consistent high levels of test coverage, strong technical documentation and effective monitoring. Understanding of algorithms, data structures, databases and large-scale systems. An appreciation of the entire stack (including but not limited to front-end, service oriented architecture, databases, network layers, etc.) and how they impact the performance of your application. Preferably experience in at least one JVM based language such as Java, Kotlin, Scala, etc. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Unlimited books policy; order the technical resources you need or simply pick something up from our company library. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Favourite GIF. LinkedIn profile. Link to Github, Stackoverflow, personal website and/or blog (if applicable).

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for Site Reliability Engineers to join our engineering team as we tackle some of the most interesting problems in the crypto space, like how do we securely scale a distributed financial platform that touches millions of people a day. Site Reliability Engineering (SRE) and DevOps is an engineering discipline that combines software and systems engineering to build and run large-scale, distributed, fault-tolerant systems. SRE ensures that Blockchain's services are reliable and available to meet our users and business needs, and delivers a fast rate of improvement while keeping an ever-watchful eye on capacity and performance. At Blockchain, SRE is also a mindset and a set of engineering approaches to running better production systems-we build our own creative engineering solutions to operations problems. SREs are responsible for the big picture of how our systems are designed for operability, how they relate to each other, and we use a breadth of tools and approaches to solve a broad spectrum of problems. Practices such as limiting time spent on operational work, blameless postmortems and proactive identification of potential outages factor into iterative improvement are key to both product quality and dynamic day-to-day work. The SRE/DevOps environment at Blockchain is a work in progress - we are looking for SREs to join the team. Are you ready for a challenge? WHAT YOU WILL DO: Build large-scale infrastructure  and optimize existing systems for scalability. Solve operational problems writing code Use a wide variety of open source technologies and tools. Work in close collaboration with developers. Participate in an on-call rotation. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. Strong background in Linux/Unix Administration. You have a passion for learning new technologies, troubleshooting and analyzing large-scale distributed systems Experience with software design, algorithms, and  data structures. Good knowledge of one or more scripting languages (Python/Ruby preferred). Experience with of one or more of the following:  C, C++, Java, Go, is preferred. Good knowledge of container solutions. Experience working with cloud solutions (AWS or GCP). Bonus: Experience working with, or knowledge of, the bitcoin protocol. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: LinkedIn profile. Link to Github, Stackoverflow, personal website and/or blog (if applicable). Favourite GIF

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Blockchain's engineering team is building technologies that are revolutionizing the financial services industry by empowering millions across the globe to authenticate and transact immediately and without costly intermediaries. We are looking for a Quality engineer to join our growing engineering team, to rapidly create, iterate and high-quality software that empower users all over the world. Ultimately, you should be able to adapt easily to meet the needs of our fast growth and the rapidly evolving crypto ecosystem. Our engineering team is tackling some of the most interesting problems in the crypto space while rapidly and securely scaling a distributed platform that touches millions of people a day. We want you to join us! WHAT YOU WILL DO: Define, write, and implement test automation strategy for functional and load/performance testing. Research and advise on new and alternative tools, technologies and test automation approaches. Design, build and document effective, reusable and maintainable automated functional test framework for testing UI, API and database that facilitates automation scripting, execution and analysis of results. Develop, apply and maintain quality assurance automated testing standards, techniques and procedures. Provide leadership across the engineering and QA teams to define requirements, do technical analysis of technology and current workflow and generate automation plans for new projects. Provide technical leadership and mentoring for test engineers on multiple applications/projects onshore and offshore; train and mentor project team members to create, execute, analyze, and maintain automated regression suites. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. At least 3+ years of hands-on test automation development experience including: Experience in automation at service and UI levels. In-depth knowledge of QA methodologies and best practices. Experience working with industry automation tools, such as Selenium, Protractor, HP UFT/QTP, SoapUI strongly preferred Experience with defect tracking tools such as Atlassian JIRA. White-box/Gray-box testing experience preferred Expertise in defining and tracking quality assurance metrics such as defects, defect counts, test results and test status preferred You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You believe that you can achieve more on a team - that the whole is greater than the sum of its parts. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Catered team lunch every  Monday ,  Wednesday , and  Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Resume and/or CV and your LinkedIn profile. Link to Github or Stackoverflow or links  to past projects, a portfolio, or piece of work you're proud of. (if applicable) Your favourite GIF.  

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in evolving the core platform which drives our retail products. Our engineering teams are involved in all aspects of the product lifecycle, from idea generation, design, prototyping, planning, execution and shipping. We are looking for software engineers who care about software excellence, are advocates of best practices and love learning new skills. WHAT YOU WILL DO: Be at the forefront of the cryptocurrency ecosystem building out new distributed software to handle our rapidly growing user base of 27M+ wallets. Be a part of a dedicated engineering team committed to rapidly shipping, and iterating on products that directly impact millions of users. Gain exposure to an array of open-source technologies such as Kafka, PostgreSQL, Redis, Cassandra, RabbitMQ, etc. Optimise existing systems for scalability, extensibility and performance whilst building out reusable, modular code for use across Blockchain's products. Ensure security is at the forefront of everything you do, employing advanced encryption schemes to secure user and company data. Work within interdisciplinary teams to continually deliver the highest quality software to our users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. You possess an innate curiosity, are a strong advocate for the best engineering practices and thrive on learning new technologies. You take a pragmatic approach to developing clean solutions to complex problems. You have some experience building and shipping highly-available, fault tolerant distributed systems. You pride yourself on consistent high levels of test coverage, strong technical documentation and effective monitoring. Understanding of algorithms, data structures, databases and large-scale systems. An appreciation of the entire stack (including but not limited to front-end, service oriented architecture, databases, network layers, etc.) and how they impact the performance of your application. Preferably experience in at least one JVM based language such as Java, Kotlin, Scala, etc. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Unlimited books policy; order the technical resources you need or simply pick something up from our company library. Catered team lunch every Monday, Wednesday, and Friday. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Favourite GIF. LinkedIn profile. Link to Github, Stackoverflow, personal website and/or blog (if applicable).

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. Blockchain's engineering team is building technologies that are revolutionizing the financial services industry by empowering millions across the globe to authenticate and transact immediately and without costly intermediaries. We are looking for an Android engineer to join our growing engineering team, to rapidly create, iterate and launch high-quality software that empowers users all over the world. Ultimately, you should be able to adapt easily to meet the needs of our fast growth and the rapidly evolving crypto ecosystem. Our development team is tackling some of the most interesting problems in the crypto space while rapidly and securely scaling a distributed platform that touches millions of people a day. We want you to join us! WHAT YOU WILL DO: Be part of a team that is building industry-leading bitcoin wallets for users around the globe: View on Google Play Write well-tested, reliable code for use by millions of users who use our wallet. Proactively collaborate with team members, ensuring the sharing of knowledge and efficient division of labour. Work on the most interesting and challenging problems in the cryptocurrency space. Get exposure to the latest technologies and developments in a technology and product driven company. Work on an industry-leading product with millions of users. WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. At least 2+ years' experience working with Java / Kotlin and the Android SDK and have at least one or two apps in the store. Experience with reactive programming (RxJava or otherwise) is a bonus. You are excited about using the latest Android features to build the best app in class. You feel ownership over everything you ship-you'd never call code "released" until you're confident it's correct. Unit testing/TDD and achieving a high level of coverage should be second nature to you. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You rely on others' candid feedback for continuous improvement. Excellent communication skills to liaise with various team members around the world . Strong analytical and problem-solving skills. You enjoy learning new things. COMPENSATION & PERKS: Amazing and accessible office locations in the heart of London. Unlimited vacation policy; work hard and take time when you need it. Apple equipment. Full-time salary based on experience and meaningful equity in an industry-leading company. Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: Resume and/or CV and LinkedIn profile. Link to Github or Stackoverflow. Personal websites or blogs (if applicable). Your favourite GIF.

Coinbase has built the world's leading compliant cryptocurrency platform serving over 30 million accounts in more than 50 countries. With the success of our flagship product, Coinbase Consumer, and our vocal advocacy for blockchain technology, we have played a major part in mainstream awareness and adoption of cryptocurrency. We are now proud to offer an entire suite of products that make accessing cryptocurrencies easy and secure, in addition to new products that operate at the frontiers of crypto and blockchain. Our  vision  is to bring innovation, efficiency, and equality of opportunity to the world by building an open financial system. Our first step on that  journey  is making digital currency accessible and approachable for everyone. Two principles guide our efforts. First, be the most trusted company in our domain. Second, create user-focused products that are easy and delightful to use. Moving and transacting financial assets safely is core to executing on our vision  and building our brand of trust. The Payments team builds shared infrastructure for Coinbase and Coinbase Pro to securely store and trade billion dollars of assets. We take on hard engineering problems in cryptography, security, blockchain technology and distributed systems, with a focus on building highly reliable services for product teams. On Payments, you will be tasked with helping Coinbase and Coinbase Pro expand to new markets and assets. You'll work closely with product, infrastructure, fraud and security teams to add new cryptocurrencies and payment rails to our platform, and to help expand to new countries around the globe. You will also be responsible for designing, building and maintaining scalable software systems used by over 20 million customers to trade cryptocurrencies. A little about our team: we take continuous learning to heart. We make sure that we have the best tools for the job - we are thoughtful about code quality, testing and architecture, we push code to production confidently multiple times a day, work primarily on microservices and have great monitoring, alerting and debugging tools for production. We also value positive energy, and clear communication and are committed to building an inclusive environment for people from every background. Responsibilities Design and build reliable services to help Coinbase access blockchain infrastructure, as well as traditional payment networks across the world. Write highly reliable software that provides accounting and transactional services to help our customers trade crypto assets safely. Work with engineers, product managers and senior leadership to turn our vision  into a tangible roadmap every quarter. Add positive energy in every meeting, and make your coworkers feel included in every interaction. Requirements You have at least 4 years of experience in software engineering. You've designed, built, scaled and maintained critical production services. You write high quality, well tested code to meet the needs of your customers. You are passionate about building an open financial system that brings the world together and recognize that the first step in doing that is bridging the Finance 1.0 world with the Finance 2.0 (our) world Nice to Haves You have experience working with Golang, Ruby, Docker, Rails, Postgres, MongoDB, AWS. You have experience building financial infrastructure and applications.   Coinbase is committed to diversity in its workforce and is proud to be an equal opportunity employer. Coinbase does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law. Coinbase will also consider for employment qualified applicants with arrest and conviction records in a manner consistent with San Francisco's Fair Chance Ordinance and similar local laws.

Description At Elliptic, we believe cryptocurrency will play a huge role in the future of value transfer, and we care deeply about helping to build this future. In order for cryptocurrency to flourish, it's important to prevent criminal abuse of the technology. Elliptic is the global leader in detecting, preventing, and pursuing criminal activity in cryptocurrencies. Our clients include the world's leading cryptocurrency exchanges, financial institutions and government agencies. Our unique platform gives us an unparalleled understanding of cryptocurrency capital flows, using a combination of network science and machine learning to aggregate and interpret vast quantities of transaction data. We provide anti-money laundering (AML) compliance software and investigative services to the leading participants in the cryptocurrency ecosystem. Customers rely on us to analyse more than $150bn of their transactions every month, and include cryptocurrency businesses, major financial institutions, and federal government agencies. The company has offices in London, UK, Washington, D.C and New York City. We are backed by Octopus Ventures, SignalFire, Paladin Capital, Santander InnoVentures, and Digital Currency Group. What's the role? With revenue and customer numbers continuing to grow year-on-year, we are looking to expand our customer success team to ensure that we continue to give our customers the best experience possible with Elliptic. We are looking for a Customer Success Associate (CSA) to come and create long-term, trusting relationships with customers in the small/medium business (SMB) customer segment. The CSA's role is to oversee a number of customer accounts, manage and develop Elliptic's relationship with the customer, and to drive towards renewal and expansion goals with those customers. We're looking for someone who enjoys working in a fast-paced, sometimes unstructured environment where personal accountability is valued. This position may require occasional travel. What you'll do: Working collaboratively across all areas of the business, your primary objective is to create amazing customer experiences across all aspects of the customer journey for your assigned accounts. You will take a metric-driven approach to owning and reporting on key customer health metrics. Key responsibilities will include: Developing strong relationships with your customers, connecting with key stakeholders and using data-led insights to help your customers get the most out of Elliptic's products. Acting as the first line of response for non-technical support queries. Liaising with cross-functional internal teams (including engineering, product development, sales and marketing), to improve the entire customer experience. Building automated, tech-enabled and content-rich interactions throughout the customer lifecycle with our SMB customers. Delivering expertise, education, and guidance to customers as they craft and deliver their crypto-related risk and compliance strategies. Understanding the intricacies of our products, services and partners thoroughly to leverage as needed to meet customer needs. Sharing ideas and feedback on trends including competitor insights, customer needs, sales, product and marketing information and acting as the voice of the customer internally Create and deliver customer implementation plans to accelerate time-to-value for customers and reduce onboarding friction. Deliver ongoing customer support, responding to customer queries and coordinating across the various Elliptic teams to solve their problems in line with agreed SLAs. Support the Product team with new feature roll outs, including training of customers, drafting client communications, implementing training tools etc. Actively contribute towards market development work, such as working with marketing and community teams to create high quality collateral/content and driving engagement at events. Requirements You'll be a great fit here if you: Are an independent, high-achieving individual, able to stand out in an entrepreneurial environment and excel through self-motivation and personal drive. Have a passion for problem solving and are goal-oriented. Are a listener with an exceptionally high EQ and the ability to empathise with your customers when they are facing problems. Know how startups work and you have an interest in technology. Are a proactive doer, embody proactivity, with a can-do roll-your-sleeves-up attitude, and don't wait around to be told what to do! Benefits Competitive salary 25 days holiday, health insurance, pension plan and EMI options Career development plan & personal training budget Fortnightly team lunches, snacks and drinks in the office, and quarterly team events Collaborative, flexible and friendly environment with options for remote working Being part of a business with a purpose, and the opportunity to work with a passionate team of mission-driven people who'll stretch and challenge you Elliptic is not a traditional financial services firm. We pride ourselves on having a laid-back and friendly ethos, while still expecting great things from our team. Fascinating work is the norm - working at Elliptic is never boring! No recruitment agencies!

At Blockchain, our mission is to build an open, accessible and fair financial future, one piece of software at a time. As the face of Blockchain, the office manager will represent the company externally as a brand ambassador and work closely with the Operations team to manage our growing HQ. WHAT YOU WILL DO: Support ALL EMEA-based employees (remote, LON office). Manage purchases across the entire London HQ: office supplies, kitchen snacks/food, stockroom, and swag orders, including replenishing from stock room daily. Organize and monitor the company lunch program every Mon, Wed, and Fri Book and manage employee and candidate travel including flights, hotel, and corporate apartment (this includes all EMEA and UK-based employees or guests visiting any UK entity or office). On-call for weekend bookings, changes, updates or problems that arise. Assist with all requests from employees throughout daily office life (e.g. vendor management, printer, zoom, meeting room bookings, equipment, guest services). Plan and implement internal and external company events, happy hours, conferences, and meetings from start to finish. Assist IT Dept. with troubleshooting unforeseen employee issues such as office repairs, broken or lost equipment, internet issues. Work with Operations Team in managing and documenting office expenditures, budget, and inventory. Manage office day cleaner and nightly cleaning staff. Corporate flat upkeep (manage cleaner, supply fulfillment, key exchange). Assist People Operations and IT in setting up zoom interviews, bi-monthly onboarding meetings, managing meeting rooms, desk setup, and welcoming candidates and new employees to the office. Provide necessary backup to other employees (e.g. when security receptionist is unavailable). Always having security and safety guiding every decision.   WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. 1+ years in an office management or administrative role with a strong ability to multitask (Start-up experience a plus) . Exhibit mental toughness in complex and extreme work situations. Ability to prioritize, organize, and execute quickly and efficiently in a dynamic environment with ever-changing and competing demands. Strong presentation and communication skills when interacting with internal and external stakeholders. Attention to detail and superb organization skills that friends describe as OCD but you know it stems from your perfectionist nature. Confident and whatever-it-takes attitude. Bachelor's degree.   COMPENSATION & PERKS: Accessible office location in Whitechapel, London. Unlimited vacation policy; work hard and take time when you need it. Team lunch every Monday, Wednesday, and Friday. Fully stocked kitchen. Workout room in the office. Apple equipment. APPLICATION: Resume or LinkedIn profile. Most importantly, a GIF you really like.

Blockchain is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. This is an opportunity to join our global User Operations Support team and ensure the best user experience possible. Reporting to the User Operations Lead, you are on the front line engaging with a growing community of users across Blockchain's portfolio of products. WHAT YOU WILL DO: Resolve incoming questions from incoming users via email succinctly, effectively and efficiently. Document support issues and contribute to knowledge base (Zendesk). Onboarding and monitoring of customers, including KYC and AML compliance checks. Act as a bridge between our user operations, product, and engineering teams on product issues and bug resolution. Monitor social media channels on Twitter/Reddit and Facebook and make sure users receive prompt and amazing customer service. Support community and marketing efforts in the blockchain technology scene.   WHAT YOU WILL NEED: The foremost quality for this position or any position at Blockchain is integrity. Experience with customer or technical support, a plus if you've used ZenDesk before. Passion for creating a positive user experience that is responsive and organized. Must be able to work in a fast-paced, diverse work environment with great follow through on tasks.  Ability to work one weekend day (with one weekday off). Knowledge of cryptocurrencies. COMPENSATION & PERKS: Amazing and accessible office location in the heart of London Unlimited vacation policy; work hard and take time when you need it. Access to training and other resources as needed. Catered team lunch every Monday, Wednesday, and Friday. Full-time salary based on experience and equity in an industry-leading company. London Benefits: Private Medical Insurance (BUPA), Dental, Pension, Life, Short Term & Long Term Disability. APPLICATION: LinkedIn profile. Link to personal website and/or blog (if applicable).

As an applied cryptographer, you will be working closely with researchers and engineers to bring cutting edge cryptography to market. You will be implementing complex elliptic curve cryptography on very resource constrained computing platforms, and you will help design testing and review processes to ensure these implementations meet and exceed the security and reliability expectations of our customers. You will be helping AZTEC build zero knowledge systems which make privacy accessible to developers and end users, notably by designing and building intuitive and well documented APIs to cryptographic systems. You’ll be responsible for: Implementing algorithms in the field of elliptic curve cryptography and zero knowledge proofs Testing, and reviewing these implementations to a high standard Participating in project scoping and timeline setting Training less experienced applied cryptographers in the team   Skills and experience required: A deep understanding of elliptic curve cryptography Experience building software for resource constrained systems A demonstrated ability to communicate complex topics clearly A demonstrated ability to manage long lasting projects effectively Attention to detail Bonus points for: Interest and curiosity in blockchains and the technology behind them Specific experience in zero-knowledge proving systems Published research in the fields of mathematics or cryptography Awareness of security principles and best practises Experience in a growing startup