Senior QA Automation Engineer (AQA/SDET)

Навыки

• Agile
• Allure
• API (интеграции)
• Тестирование API
• Блокчейн
• CI/CD
• Code review

Задачи

• Position Summary
• We're looking for a strong Senior QA Engineer with leadership experience — someone who can not only design and maintain automated testing for backend and data-heavy systems in the blockchain domain, but also shape the team's technical vision, influence architectural decisions, and own product quality on a long-term basis
• This is a fully remote role, and we welcome applications from anywhere in Europe
• More details: crystalintelligence.com
• Duties and responsibilities
• Design, develop, and maintain automated tests for backend/API and frontend services and data-processing systems in the blockchain domain, including API, integration, contract, and data validation coverage
• Create reliable test coverage for edge cases such as missing data, delayed data, and incorrect calculations
• Analyze failed tests and production-like issues using logs, metrics, monitoring dashboards, API responses
• Conduct code reviews
• Pioneer new approaches, architectures, or frameworks that drive the business forward
• Focus on long-term systemic planning, making high-level trade-offs across projects, and establishing technical vision
• Prioritize testing efforts based on business needs, project risks, and delivery timelines
• Identify process improvement opportunities and implement QA best practices
• Evaluate and drive adoption of AI tools for QA and development workflows (e.g., AI-assisted test generation, code review, automation frameworks)
• Define best practices and guidelines for using AI tools within the QA process, and help the team integrate them effectively
• Collaborate closely with developers, business stakeholders, and cross-functional teams to improve testability, observability, and reliability of services
• Maintain test documentation, automation coverage notes, and clear defect reports

Требования

• 5+ years of AQA/SDET experience testing complex backend, API, data-heavy, or distributed systems
• Deep understanding of SOLID principles and design patterns, hands-on experience applying them into test frameworks
• Solid SQL and PostgreSQL experience, including advanced queries, data validation, and investigation of data inconsistencies
• Strong test design skills
• Understanding of backend architecture, environment-based configuration, service health checks, and deployment validation
• Strong Java programming skills for test automation
• Hands-on experience with test automation tools and frameworks (e.g., Playwright, Postman, REST-assured or similar for API testing
• Allure for reporting)
• Experience of working with version control systems (GIT)
• Experience working in Scrum or another Agile delivery process
• Hands-on experience with AI-assisted development tools such as Cursor and Claude, including creating custom skills, agents, and rules to support QA/development workflows
• Hands-on experience with AI no-code tools and business process automation (e.g., n8n)
• Proficiency in English

Будет плюсом

• QA technical leadership experience
• Experience in performance testing
• Python knowledge
• Tech stack
• Languages: Java (primary, for test automation)
• Python (nice to have, such as backend is written on this language)
• Database: PostgreSQL
• Test automation: Playwright, Postman or REST-assured (API testing), Allure (reporting)
• CI/CD: GitHub Actions
• AI & Automation Tooling: Cursor or Claude for AI-assisted development, n8n for workflow automation (e.g., Jira ticket automation, bug-report pipelines)
• Project & Collaboration Tools: Jira, ClickHouse, Mintlify, Drata (compliance tooling), Spira (test case management), Tailscale

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