QA Engineer

Responsibilities

• Develop and execute test plans, test cases, and test scripts for blockchain-based applications and APIs
• Design, implement, and maintain automated testing frameworks for functional, performance, and security testing
• Conduct manual and automated testing of transactions, wallets, payment systems, and decentralized applications
• Identify, document, and track defects using bug-tracking tools like Jira and GitHub
• Collaborate with developers to conduct feature reviews and ensure testability of new features
• Perform security testing to detect vulnerabilities in products
• Work closely with DevOps to integrate testing into CI/CD pipelines and optimize execution in cloud environments
• Conduct regression testing and maintain a robust suite of automated tests

Requirements

• 2+ years in software quality assurance, preferably in fintech, blockchain, or security-focused industries
• Proficiency in automation testing frameworks
• Strong understanding of Bitcoin and blockchain technology
• Experience with API testing tools
• Knowledge of scripting languages
• Understanding of security testing methodologies, including penetration testing and vulnerability assessments
• Experience with performance testing tools
• Strong analytical and problem-solving skills
• Ability to work in a fast-paced, remote-first, and collaborative environment
• Excellent communication and documentation skills

About the Company

Blockstream was founded in 2014 to build fundamental Bitcoin infrastructure. We are transforming traditional financial systems by equipping enterprises and consumers with Bitcoin-based solutions that enhance efficiency, security, and scalability. Our product stack includes layer-2 projects like Liquid and Core Lightning, as well as end-user software and hardware wallets like Green and Jade.