Senior QA Engineer, Typescript, Blockchain

This is a fully remote position, open to applicants in Poland, +3 more countries.

📋 Description

• Oversee testing activities for blockchain-based applications, including requirement analysis, manual validation, test automation, and release support.

• Evaluate business requirements and technical documentation to determine testing necessities.

• Conduct manual tests on new features and existing functionalities to comprehend system behavior and inform automation efforts.

• Formulate and enhance QA strategies, test plans, and quality assurance gates.

• Define testing ownership and coordinate responsibilities between QA and engineering teams.

• Collaborate with engineering and product teams to establish test coverage and acceptance criteria.

• Create and maintain automated test suites, frameworks, and test harnesses for backend, integration, and contract testing.

• Test blockchain integrations, smart contracts, REST APIs, JSON-RPC endpoints, MCP servers, and other blockchain-specific functionalities.

• Integrate and monitor automated tests within CI/CD pipelines and quality assurance gates.

• Investigate and resolve issues across distributed systems and blockchain integrations.

• Adapt testing priorities and methodologies as project requirements shift.

• Maintain testing documentation, report quality risks, and communicate testing progress and obstacles.

• Broaden automation coverage and enhance QA practices across various projects.

⛳️ Requirements

• Minimum of 5 years of experience in QA/SDET roles, encompassing both manual and automated testing throughout the entire SDLC.

• Extensive experience with backend and non-UI test automation.

• Proficient in developing, maintaining, and debugging automated tests.

• Strong programming capabilities in test automation, preferably using TypeScript/Node.js.

• Competence in defining QA strategies, test plans, and quality gates from inception.

• Knowledge of blockchain fundamentals, including wallets, transactions, and various blockchain types.

• Experience in testing REST APIs and RPC-based interfaces, such as JSON-RPC and gRPC.

• Familiarity with Docker-based testing environments and debugging containerized services.

• Proven experience in integrating automated tests into CI/CD pipelines and establishing quality gates.

• Experience with AWS-based infrastructure.

• Proficiency in MongoDB or PostgreSQL.

• Strong analytical and problem-solving abilities.

• Capability to independently manage testing activities, own deliverables, and communicate progress and obstacles effectively.

• Flexibility to adapt to changing priorities and take a hands-on approach to testing.

• Ability to delineate testing scope and balance coverage between QA and engineering teams.

• Excellent communication and collaboration skills with various stakeholders and teams.

• Upper-Intermediate+ level of English proficiency.

• Preferred: experience in testing blockchain systems, smart contracts, and transaction flows.

• Preferred: experience with Go for test automation.

• Preferred: experience in EVM testing using Foundry, Hardhat, or similar frameworks.

• Preferred: ability to read and understand Solidity or Rust.

• Preferred: experience with Layer 2 solutions and blockchain protocol testing.

• Preferred: experience testing asynchronous messaging systems such as AWS SNS/SQS or Azure Service Bus.

• Preferred: familiarity with Kubernetes.

• Preferred: experience in observability-driven testing.

• Preferred: experience testing MCP servers.

• Preferred: experience in performance and load testing.

🏝️ Benefits

• Engage with an innovative blockchain platform aimed at fostering trust and transparency in private markets.

• Enhance your expertise in blockchain systems, distributed architectures, and intricate integrations.

• Contribute to the development of test automation frameworks and help shape quality practices across multiple projects.

• Enjoy a remote-first work environment.

• Be part of a global team of IT professionals operating across 55+ countries on five continents.