4 Tester | Blockchain jobs

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. We are scaling rapidly and looking to hire a   Software Engineer - Python. You'll be joining a team that is building innovative tools, services, and frameworks to solve hard engineering problems and ensure that our software achieves our rigorous standards for correctness and high-reliability. This role is based in our   Clearmatics London office . Requirements Essential Skills & Experience Strong Python programming skills with a focus on back-end or systems-level development Experience programming in at least one statically-typed language (Golang, C/C++, Rust) Strong problem-solving skills and the ability to think critically and systematically A good understanding of Linux OS, TCP/IP networking, and common network protocols Proficient in development and Bash shell scripting in a Linux CLI environment Experience developing/testing REST, gRPC, or JSON-RPC APIs in a microservice architecture An appreciation of the development practices that contribute to software quality Familiar with Docker/OCS container-based development workflow and Kubernetes orchestration Desirable Skills & Experience Ethereum ecosystem experience: APIs, clients, protocols, algorithms, and technologies Practical knowledge of distributed systems, consensus algorithms, and P2P technologies Knowledge of Solidity smart contract language and testing with Truffle and Node.js Experience with test automation frameworks and component/integration/system testing Expertise in network capture, packet analysis/filtering, and software-defined networking Front-end web development skills: HTML/CSS, JavaScript/TypeScript, JQuery, React or Vue.js Fluency in SQL and experience with relational database management (PostgreSQL, SQLite) Experience with financial products or market infrastructure in a financial institution What we value at Clearmatics: Collaboration and respect Honesty & Humility Ability to challenge opinions with logic and evidence Willingness to work hard and solve hard problems Passion for distributed technology, cryptography, and their implications for society Continuous improvement and learning. If you'd like to make significant contributions to the blockchain ecosystem and think you are a match, then we'd like to hear from you. Benefits: Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remotely. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favourite British specialties. Joining a fast-growing, game-changing, FinTech company.

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. We are scaling rapidly and looking to hire a   Haskell  Software Engineer    to help drive the next stage of the company's growth.  In this role, you will own the vision, roadmap, and build-out for the company's documentation systems: a cutting-edge, Unix-based platform built on Pandoc technology. As part of the Platform team, you will work closely with engineers and document authors across the company to specify, design, implement, and maintain the company's document automation platform. This role is based in our   Clearmatics London office. Responsibilities You will be responsible for the following: Developing robust programs for parsing, converting, generating, and publishing documentation Integrating document tooling with web services, relational databases, and semantic knowledge bases Developing tools, plugins, or extensions for document publishing and collaborative authoring Building and maintaining automated pipelines for the production of web sites and documents Designing consistent and professional sites, Pandoc templates, LaTeX styles, and CSS stylesheets Requirements Essential Skills & Experience Strong programming skills in one or more languages (e.g. Haskell, Rust, Clojure, Elixir, Python, GoLang or C++ ). Haskell is our preference. An understanding of common data structures and computer algorithms Proficient with Unix command line tools and automating flows with Bash shell scripts Good knowledge of Pandoc, Markdown, LaTeX, and technical document authoring toolchains Proficient with Git and leveraging version control for document management and change tracking Experience with web technologies (HTML/CSS, JavaScript) and static site generators Desirable Skills & Experience Automated processing of Markdown documents with custom Pandoc filters Using source code and API documentation generators (e.g. Doxygen, RAML tools) Familiarity with Semantic Web technologies and tools: W3C SKOS, OWL, RDF Designing or customising Pandoc templates, LaTex styles, and CSS stylesheets Experience with Continuous Integration systems, Docker containers, and software packaging Fluency in SQL and experience with relational (PostgreSQL, SQLite) and NoSQL databases Creating diagrams and graphics with TikZ and PGF, Graphviz DOT, MetaPost or Asymptote What we value at Clearmatics: Collaboration and respect Honesty & Humility Ability to challenge opinions with logic and evidence Willingness to work hard and solve hard problems Passion for distributed technology, cryptography, and their implications for society Continuous improvement and learning. If you'd like to make significant contributions to the blockchain ecosystem and think you are a match, then we'd like to hear from you. Benefits: Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remotely. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favourite British specialties. Joining a fast-growing, game-changing, FinTech company.

About Clearmatics Clearmatics is a B2B fintech startup building P2P protocols and tools for automating the finance industry. Specifically, we design protocols and build platforms for decentralised Financial Market Infrastructure (dFMI). Founded in 2015, we are a London-based blockchain R&D company, whose mission is to build peer-to-peer infrastructures that solve issues and inefficiencies inherent to today's client-server architectures. We call our technology approach 'decentralized automation', which combines cryptography, consensus protocols and economic mechanism design. We have good ties to the Open Source / Ethereum community, we work closely with the Ethereum Foundation, and the company is an Ethereum Enterprise Alliance Member. We're looking to hire a  Senior DevOps Engineer  to expand our team. You will be working with the Engineering team on DevOps strategy, design, and implementation. About You As a  Senior Devops Engineer , you will define and implement processes and technologies that will support delivering the core Clearmatics product. You will help Engineering teams to go faster, whilst ensuring quality is maintained through Continuous Integration and Delivery. You are naturally curious and continuously looking to improve. You should have more than a passing interest in the Ethereum or cryptocurrency space, with contributions to Open Source Projects being a distinct plus. You should be able to reason about technical problems, argue thoughtfully and contribute in a team setting.  RESPONSIBILITIES You will be responsible for the following: Defining best practices and methodologies for agnostic cloud architectures Defining packaging approaches and release management Defining release processes for regulated environments Defining deployment strategies Monitoring, notification, and alerting systems Knowledge transfer and mentoring other team members REQUIREMENTS You are a team player, comfortable working under your own steam and are used to working in a fast paced innovative environment. Candidates are expected to have exposure to some elements within our tech stack and to demonstrate the ability to have learned new technologies in the past. Our tech stack consists of the following: A security mindset Experience of working with cloud based infrastructure Experience of working with container technologies (Docker, Kubernetes, etc) Experience of configuring Continuous Integration pipelines Experience of proactively monitoring systems and networks Experience leading teams Data management strategy, design, and implementations Experience of using scripting languages Experience of Link Layer and Internet Layer protocols Hands on experience within a DevOps culture, supported by lean / agile delivery methodologies ESSENTIALS A security mindset Experience of working with cloud based infrastructure Experience of working with container technologies (Docker, Kubernetes, etc) Experience of configuring Continuous Integration pipelines Experience of proactively monitoring systems and networks Experience leading teams Data management strategy, design, and implementations Experience of using scripting languages Experience of Link Layer and Internet Layer protocols Hands on experience within a DevOps culture, supported by lean / agile delivery methodologies   NICE TO HAVES Experience of working with Ethereum or related DLT technologies Experience of working with Decentralised or P2P systems Golang Experience of working in or with financial institutions Experience of cryptography Experience of working with HSMs WHAT WE VALUE AT CLEARMATICS Collaboration and respect. Honesty & Humility. Ability to challenge ideas. Willingness to deliver robust solutions. Passion for the technology and its challenges. Continuous improvement and learning. PERKS AND BENEFITS Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remote. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favourite British specialties. Join a fast growing, game changing, FinTech company ;)

Alex Tosney is recruiting for a Quality Assurance Software Engineer to join a start-up research organisation looking to lead the development and adoption of decentralised web technologies and framework. This is an exciting opportunity to join a fully funded start-up organisation in a permanent position to drive the development of blockchain technology. The main purpose of the role will be to help the grants management team to determine the viability of deliverables from grantees. This will involve quickly understanding different technology stacks, the underlying requirements of the software, and performing functional testing to determine if the requirements have been met. Depending on the project, it may also involve review and inspection of codebases in a variety of languages and frameworks, such as Rust, JavaScript, and node.js. Other duties will include to: - Evaluate grant milestone delivery, including reviewing documentation, compiling their projects, and functional testing of these projects. - Interact with the applying teams, in order to answer their questions and better understand their deliverables. - Interact with relevant teams (e.g., legal, finance, collaborations, community building) at agreed points of the application process. - Help to prepare the decisions for the Grants Committee. - Improve the process of evaluating grant milestone deliverables. In order to be considered for this role, you will be required to have the following qualifications, skills and experience: - Knowledge and understanding of blockchain technologies and applications. - Technical ability to evaluate software implementation: setting up environments; compiling complex projects and their dependencies; reviewing and analyzing code. - Technical ability to test software: reading, writing and evaluating test plans; running and evaluating automated test suites; reviewing and testing functionality. - Ability to work in a variety of development environments and languages. - Approachable and clear communication style. - Experience and proficiency in programming, e.g., in Rust, JavaScript, C, C++. - Experience and proficiency in Docker and VSCode. - Experience with Linux, and other Unix-based OSes. For more information or to apply for this position, please contact Alex Tosney on 0041 (0) 41 7276 793 or email atosney@ckqls.ch. Please quote reference 47060 in all correspondence.