26 Developer/Engineer Smart Contract | Blockchain jobs

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Blockchain Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. Must Have: 2+ years of software development experience, preferably in the fintech industry 1+ year(s) of full stack development Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Strongly Prefer: Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Graduated from accredited school Experience in a startup environment Other: Must be local to San Francisco area

Company: Our client is developing applications to make digital currency spendable anytime anywhere by offering a debit card payment system. The company is driven by a talented team of developers, marketing experts, designers, lawyers, cryptography and security specialists, they even have bankers and accountants on their team ready to create the foundation for exponential growth within the virtual currency space. The company is looking to hire experienced developers on both front- and backend. Past experience and the right tech-stack is important, but it is more essential that people are hungry and self-driven, interested in the blockchain ecosystem and willing to grow and learn. The ideal candidate  is either Singaporean, Singapore PR or willing to relocate to Singapore. Exceptions might be possible (Sydney, AUS or Innsbruck, AT).  Starting Date:  Now.   Job Duties: Rust or deep in C++ & willing to learn   We are looking for: be results driven & professional, experience in RUST or deep knowledge in C++ & willing to learn RUST.   Our offer in return: Excellent team full of go-getters Fun environment Great ecosystem being in blockchain Revolutionary well-funded company Well-paid Email:   zoe@cryptorecruit.com 

We are seeking full stack engineers who know their way around multiple blockchain platforms and are strong in Object-Oriented languages, such as C++ and Java.   Most especially, we are looking for a Lead Software Engineer who has experience mentoring engineers but is comfortable being 100% hands-on technically.   You’ll be working to develop, design, and test blockchain and smart contract technologies using C++ or Java as well as designing Proof-of-Concepts for how blockchain technologies can be used to grow and optimize our existing businesses. As this is a new team being put together, you’ll need to be comfortable with ambiguity and able to work independently with limited supervision.   We Are Offering:   • Competitive Salary   • Generous bonus structure   • Generous benefits package   • Paid vacation & sick days   What You Need for this Position:   • B.S., M.S., or Ph.D. in Computer Science, Math, or another technical field preferred (equivalent professional experience is acceptable)   • 5+ Years expertise in C/C++, Java, or other OO Programming   • Extensive professional experience in a full stack capacity   • Experience leading a team of engineers   • Experience with blockchain and smart contract technologies, related cryptographic principles, both theory & practice   • DevOps knowledge   • Excellent English-speaking communication   • Passion for joining a fast-paced, early-stage startup   What You Will Be Doing:   • Build a decentralized network to be shared in a peer to peer like network   • Design, architect, develop, and implement a decentralized network via blockchain technology that allows for strong data security, excellent control of data, ease of integration, and reduction of cost   • Architect a unique blockchain that overcomes scalability concerns   • Maintain and expand upon knowledge of multiple languages, frameworks, tools, devices, applications, and their capabilities   • Develop models within distributed computing frameworks   • Design and build complex applications with an emphasis on performance, scalability, and high-reliability IndieStorm is an Equal Opportunity Employer and will consider qualified applicants in a manner consistent with the Los Angeles Fair Chance Initiative for Hiring.

We're looking for a technical project lead/CTO to lead the software, web and blockchain development of our upcoming cryptocurrency ICO.

1, Already be fully immersed in blockchain technology, with experience developing smart contracts using Ethereum, Solidity, Truffle, Infura, Geth, Parity, Quorum, or other blockchain platforms and technologies or be ready to pick up really quickly; 2, Be comfortable working with your team to craft a design: choosing the appropriate technology and designing a solution that both answers the problem at hand, and stays within constraints; 3, Be able to code in solidity including test, deployment and migration. We would also like to hear from you if you are strong in Java, Python, Haskell, Golang, or maybe also JavaScript/React.JS. 4, Be comfortable with Rapid Application Development, and be up to speed on practices like TDD, continuous integration, pairing, and infrastructure automation; 5, Have experience of building prototypes for different use cases, and won't get too worried if needs and priorities change, meaning that they don't end up being implemented; 6, Have decent work ethics; we are a talented however small start up team, and so be ready to cover all sorts of things when you get in; in addition, you have to be a fast learner, at least as quick as the ups and downs of cryptocurrency market.

Etherparty  is a blockchain technology company that develops smart contract applications powered by the FUEL token. Founded by  The Vanbex Group , a global leader in blockchain-based products and services, Etherparty is developing a platform that allows users to create smart contracts on any compatible blockchain without having any programming knowledge. We’re working on Research and Development for a number of other blockchain products. We're looking for Full Stack Solidity Developers to join our high performing engineering team. You will work on innovative features of our core products and will address intriguing challenges associated with distributed systems running at scale. As Full Stack Solidity Developer, you will: Develop and test smart contracts and programming efforts on Ethereum blockchain Collaborate with other blockchain engineers in an agile environment to develop exciting new solutions with blockchain technologies Design and optimize scalable, robust services that will run at scale Own feature implementations and maintain a continuous integration pipeline Help improve our code quality through writing unit tests, automation and performing code reviews Monitor and manage cloud servers and other infrastructures/tools As an ideal candidate, you have: 3+ years of professional experience as software engineer with at least a year of experience with Solidity programming Experience in one or more of the following current blockchain development libraries and frameworks: Truffle, Embark, Web3.js, ethers.js, OpenZeppelin, Dapphub Strong emphasis on security and understanding of all potential exploits pertaining to Solidity Experience in one or more of the following web technologies: Node.js, Go, Python, React, Angular, Redux, VueJS, Bootstrap, Docker, CoreOS, RocksDB Strong understanding of smart contracts, cryptography, Ethereum and Javascript Familiarity with Github, DevOps and cloud server technology such as DigitalOcean, AWS, or Azure Bachelor’s Degree in Computer Science or Computer Engineering and/or equivalent experience I f this role sounds like a match, we want to hear from you! Apply with your resume, GitHub link, and anything else that would help us get to know you.

Blockchain Developers, the leading blockchain recruiting agency, is seeking a Senior Software Engineer for a project that has the potential to change computing as we know it. We are building a real-time 3D map of the world, enabling AR to persist in the real world across space, time and devices. Be part of this amazing team. You will be leading some development work while collaborating in a variety of others to build a new and complex system. In addition, you will be expected to use your technical experience to assist in ideating and defining product features and use cases.You will be involved in all aspects of the development cycle, including definition, architecture, design, implementation, testing, automation and documentation. Must Have Experience working with blockchain technology (smart contracts, or designing a public chain) At least 2 years of software engineering experience Github code available for review Strongly Prefer Hands-on full life-cycle software development experience. Language agnostic Experience designing and building SDKs Experience developing APIs from scratch Proficient with AWS or similar cloud services Experience in Augmented Reality applications Experience with localization technology (GPS, trilateration, etc.) Experience with Unity/Unreal Engine Mobile App development MMO game backend development Mandarin language skills Other Important Information L.A. or Shenzhen, remote considered

Token Foundry is an arm of ConsenSys Capital that helps promising blockchain projects launch successful token sales.   We have a strong understanding of the ethereum blockchain ecosystem and work closely with companies and initiatives that can benefit from a decentralized protocol. We have successfully launched several token sales  and have several more in our pipeline. We are seeking applicants with a strong understanding of cryptoeconomics and blockchain protocols and a genuine interest in this space. The ideal applicant should have a hard work ethic, a proven track record and passion to succeed in an ever-changing and exciting digital landscape. Our teams are busy at work building the future of identity, financial markets, commerce, security and infrastructure, and more. If you are someone that thrives in a fast-paced environment where being self-directed, determined, and resilient are a requirement, we would love for you to join us. The Role ConsenSys Enterprise is looking for a full stack developer with node.js and react experience.  The job will mostly focus on backend development in node.js, but will also include some basic front-end duties (e.g. creating pages with functional elements). The ideal candidate will have between 2-5 years of experience in a professional development setting.  Required skills: Javascript: node.js required, react strongly preferred Some experience building web APIs (preferably RESTful ones) Database experience: preferably SQL, but noSQL is fine too Familiarity with Ethereum/blockchains (at least on a conceptual level) Bonus points: Cloud resource management (AWS, Azure) UNIX wizardry and devops experience Python (for scripting)

Token Foundry is an arm of ConsenSys Capital that helps promising blockchain projects launch successful token sales.   We have a strong understanding of the Ethereum blockchain ecosystem and work closely with companies and initiatives that can benefit from a decentralized protocol. We have successfully launched several token sales  and have several more in our pipeline. We are seeking applicants with a strong understanding of cryptoeconomics and blockchain protocols and a genuine interest in this space. The ideal applicant should have a hard work ethic, a proven track record and passion to succeed in an ever-changing and exciting digital landscape. This specific role MUST have a strong understanding of the solidity framework for building smart contracts. Responsibilities and Duties You will be responsible for the development of Solidity smart contracts. Create tests to accompany produced code. Write code with security and resiliency in mind. Contribute to and work within Agile and DevOps frameworks. Work in partnership with Web Services and User Interface developers. Develop in alignment with overall architecture design. Assist in incident and problem resolution as appropriate. Skills and Competencies Understanding of Blockchain technology, especially Ethereum. Experience of developing Ethereum smart contracts written in Solidity. Experience of working in Agile projects with highly automated DevOps. Experience of test driven development. Experience of developing highly secure and resilient code. Experience of collaborating with User Interface developers. Experience of incident and problem resolution in production environments. Interest in blockchain and enthusiasm for working in a space full of unknown unknowns, pivoting as needed, and being comfortable with not knowing the end state is a must. Teamwork, flexibility, initiative, communication and organisation competencies are required. Banking technology experience is an advantage but not essential. Experience of full-stack development, especially with Angular and Node, is an advantage. Reporting Line You will report into the Head of Engineering, while also working in close partnership with the CEO, Head of Technology, Head of DevOps, Head of Security, Head of Product, as well as Web Services and User Interface developers.

This is an opportunity to get involved in an early stage, greenfield, Blockchain project. This is a hands-on role so we are happy to consider engineers of any level, who have the right attitude. No prior Blockchain experience is required - but any knowledge and experience you have of the technology will be a real bonus. Your DNA: ~  Accomplished designer & developer, who has experience in shipping and supporting intuitive, highly usable and aesthetically stunning software that turns heads. ~ Abilities with Sketch, Illustrator, Photoshop and prototyping tools ~ A strong desire to learn new technology and break new grounds. ~ An understanding of Web and responsive specs ~ Experience building large-scale frontend applications ~ Expert in vanilla JS, HTML5, CSS3 ~ Picks up frameworks for fun; React, Angular, Vue.js. ~ Packages and libraries like: Web3.js & Truffle ~ Obsessed with beautiful design and user interfaces and a CSS wiz ~ Understanding of cross-browser compatibility, progressive enhancement and graceful degradation, responsive design and website performance ~ Eager to work in fast-paced startup environment and a desire to disrupt existing markets Your Day to Day: ~ Your skills will extend to creative for Web, UX, Video, branding work ~ Create project architecture documents including Sitemaps, Prototypes, Workflows, Schematics, Wireframes, and Blueprints ~ Be a key part of the development function, as a scrum team member ~ Own delivering the best user experience solutions are being produced The Business: ~ An early stage startup. A British business with a community of over 20k followers. ~ A unique product tackling provenance and proof of work histories and skills ~ R_Block is a crowdfunded business to the tune of 3m. One of the top 5 most successful UK tokensales. ~ Currently a team of 6, advised by the Ethereum Foundation lead Fabian Vogelsteller: https://rblock.co/page2.html ~ Find an overview of R_Block here: https://rblock.co/Blackpaper.html R_Block is building a decentralised hiring network powered by a Blockchain based trust protocol. Offering a never seen before work identity profile through peer to peer proofs, we're tackling worthwhile problems - prejudice, data abuse and decentralisation in hiring.

Job Summary Mandatory requirement: This is a Senior position and for Toronto location only Candidate should have tremendous experience as a Full Stack developer and Architect for large scale Enterprise applications. Should have been working in blockchain related technologies since last 1-2 years This role is primarily as a Full Stack Developer who will be closely working with our Blockchain and non blockchain dev teams in Toronto, Canada and Mumbai, India Share public repo like Github to demonstrate past work   About U.CASH: U.CASH is a social-minded fintech startup and a peer-to-peer financial services network which uses blockchain technology. The global converter network of U.CASH seamlessly allows for conversion from fiat currencies to cryptocurrencies. U.CASH has its own crypto token call as UCASH and the token powers the network and will enable access to a wide variety of financial services U.CASH stands for Universal Cash. U.CASH offices are in Canada and India. Our work culture reflects our values of diversity, inclusiveness and fun at work. We are young fintech startup with a very ambitious and bold plan of providing basic financial services to our fast growing global user base. If this excites you and if it suits your profile then do apply for the job About the Job We expect minimum 10+ years of developer experience Full stack developer with basic understanding of mobile technologies (Android) and at least proof of concept experience in one public blockchain like Ethereum This is a full time role Candidate should be willing to work in a startup environment Responsibilities and Duties Our development teams are based out of Toronto and Mumbai and the candidate has to work very closely with both teams Integration of the non blockchain components of the product with the blockchain components as well as the UI/UX and the mob app Work with testing teams Single point of contact for all non-developers regarding coding issues Ensure all the best practices are followed Code review Introduce as much automation as possible using open source technologies to help speed up internal processes Understand existing design of the product and work on future design and architecture Work on scaling the existing infrastructure to meet future requirements Looking after the cybersecurity of the product Qualifications and Skills Good knowledge of public blockchain and their providers e.g. Ethereum Strong knowledge of Javascript and experience working with Node.JS, Python, Go/Rust Demonstrable experience with modern front-end frameworks: AngularJS/ReactJS/Vue.js/Backbone/Ember.js Experience with RESTful Services and APIs Comfortable working with both relational and NoSQL data stores Knowledge of at least one cloud infrastructure technology such as AWS, Google Cloud,Microsoft Azure etc. Need to be comfortable working with Linux and have a good understanding of OS internals Experience on Smart contract and Solidity, development tools for Ethereum (testrpc, geth, Web3, eth_lightwallet, etc.) Familiarity with cryptographic algorithms and decentralized systems Strong background of either C or C++ or Core Java Benefits Working in the most cutting edge technologies in blockchain space Working on multiple public blockchains Compensation is competitive and definitely at par with industry average You get to be part of an exciting startup Opportunity to work in the fast moving of Blockchain and cryptocurrency

We are building a co-browsing + markup tools + chat (communication) web application. As part of our UI layer, we are planning to integrate the latest blockchain services in areas ranging from identity (Civic, uPort, Keybase, Ethereum) to asset contribution (Golem, Sia, Maidsafe, etc) to modern monetization (Basic Attention Token, Steem, Patreon, Augur, etc) Many of these integrations will be first of their kind. Looking for individuals who want to learn, explore new territory and most importantly, ship code. Experience with Node.js and any of the modern javascript frameworks like Angular and React is a plus.

We are seeking a talented and motivated Full Stack developer who can hit the ground running developing business applications. The engineers we hire are always willing to take the extra step to ensure that the customer, whether internal or external, is blown away. We are the premier provider for blockchain security encompassing smart contract audits, penetration testing and bug bounty programs. Our team is a group of self-motivated, passionate people who jump at the opportunity to dive into a new area and if that sounds like you, we would love to talk about joining us. The Role:   • Develop internal and external facing business applications   • Take ownership of projects and deadlines   • Demonstrate thorough full-stack knowledge from pristine CSS to intricate non-relational database management   • Operate efficiently with little to no oversight   • Deliver exceptional, well-written code   • Write thorough and robust test suites for all projects   • Collaborate with other team members with ease Bonus Round:   • Deep knowledge of Python and Python frameworks such as Django and Flask   • Previous role as a mentor or trainer to other developers   • Team lead or other similar roles   • Familiarity with blockchain industry and development   • Understanding or desire to learn about cryptocurrency Benefits and Perks:   • Flexible work schedule   • Full health benefits   • Competitive salary DOE   • Stock options   • Generous PTO including holidays   • Potential travel opportunities Location: Las Vegas, NV but can be remote

Blockchain Developer required on a remote working, or Germany based contract. My client is looking to build a fully decentralised, peer-to-peer marketplace. They are looking for developers who have experience of working with blockchain systems, ideally Ethereum (Solidity) Job Role - Helping to shape the product by understanding modern blockchain solutions.  - Leading the design and development of Ethereum smart contracts.  - Working with the development team to build a private network based on Ethereum.  Essential Skills Required - 5+ years building complex software. - Experience with Ethereum.  - Solidity - Experience in Java, JS or Python.  Beneficial - Good knowledge of EVM internals is a plus.  - Experience of deploying and maintaining an Ethereum node.  - Knowledge of cryptography Contract or Perm candidates considered  Excellent Salaries/Rates  Long-term work Location - Client is based in West Germany - the more time you can spend onsite the better, but remote working will be considered for strong candidates. Start - with 2-3 weeks Please email me an up to date CV to apply

Are you in passionate about blockchain? Are you an expert Golang developer or seeking to learn? A client of mine with a successful pre-sale are now looking for two developers to join their fast growing team. The Role: You’ll be asked to work on groundbreaking backend systems demonstrating the latest evolution in blockchain technology and get the chance to learn about new techs, languages and get to work on amazing POCs. You will work on the low-level aspects of our stack, in the bowels of blockchain. You will build middleware, rules engine and more. Skills: Commercial knowledge of Golang or the basis to learn Hyperledger Fabric, and other blockchains Strong understanding of Certificates and Encryption Enterprise system architecture and Linux Good Java skills for external integrations and automation Nice to haves: JavaScript JSON Exposure to server side Javascript Couch DB and NoSQL Our client is currently based globally (truly decentralised) and is looking for someone to join their team. Get in touch with an application! Blockchain Rec (www.blockchainrec.com) is a trading name of Meditech Professionals LTD (www.meditechprofessionals.com). Blockchain Rec does not discriminate on the grounds of 'protected characteristics' as defined under the Equality Act and other relevant UK legislation. Blockchain Rec acts as a Recruitment Agency in relation to all Permanent roles and as a Recruitment Business in relation to all Temporary roles. PLEASE NOTE: We can only consider applications from candidates who have the right to work in the UK.

We are a blockchain startup that is focused on disrupting the telecommunications industry. We are looking for a Lead Ethereum Engineer with hands on experience with Solidity smart contracts, development, and cryptography. We will rely on you to develop a decentralized app (DApp) and ERC20 token from start to finish as well as lead a team of developers to ensure timely results. This is a unique opportunity to combine your software engineering background and blockchain specific experience with our vision and be a part of a startup that aims to create a decentralized telecommunications network. To apply, please send your resume and include the description of your past projects (if possible with links to code repositories, such as github). Roles: Develop a decentralized app (DApp) and ERC20 token from start to finish Lead a team of developers to ensure timely results. Stay on top of new technologies and tools, and adopt relevant ones Work in a team that values high collaboration and transparency Qualifications: Experience with at least one of the following:  C++, Java, Go, Rust, Python. Experience with Solidity and Smart Contracts Very good knowledge of how blockchains work and layer two solutions. BlockChain Specific Experience: You already have worked with one of the existing blockchain platforms Languages: You have developed work on the Ethereum blockchain with Solidity Experience in cryptography and data protection Strong software engineering background (2+ years) including strong skills in testing, source control, documentation, refactoring, and troubleshooting Knowledge of telecom infrastructure is an asset but not required. Education: Pursuing or have a degree in Computer Science, Mathematics, or related field Students are welcome to apply

We are a very fast-growing company building a cutting edge blockchain and DApp technology  We are looking for a Blockchain Developer with hands-on experience with Solidity smart contracts, databases, and web development. We want your assistance in expanding our services via an Ethereum architecture and monetizing those services with our clients. This is a rare opportunity to join a forward-looking company that is already a proven leader in the healthcare real estate segment. Roles: Help implement and maintain our blockchain infrastructure Educate clients and employees on blockchain development Development of Ethereum smart contracts and oracles Writing, testing, and deploying Ethereum smart contracts and building the System design (oracles, services, etc) around them Supporting the development of DApps as part of our platform Work with partners and vendors in support of ICO rollout Skills: Solid programming skills, with strong experience in Solidity and decentralized architectures through Oracles and other supporting infrastructure. Strong software engineering background including strong skills in testing, source control, documentation, refactoring, and troubleshooting Good knowledge and experience with at least one other programming language Experience with JavaScript and experience with DApp development is a bonus Prior contributions to Ethereum or other blockchain solutions is a strong bonus Ability to work in a team that values high collaboration and transparency