Senior AQA Engineer - API Automation

About the role

The company is hiring Senior AQA Engineers with an API focus. You will own API automation for its data and product services using Python, pytest and requests, making sure the financial data its clients rely on is correct, complete and consistent.

Key responsibilities

• Design, build and maintain API test suites in Python with pytest and the requests library.
• Validate responses deeply: schemas, business rules, data accuracy across stocks, bonds and funds, and consistency between endpoints and environments.
• Build reusable framework parts such as API clients, fixtures, data factories, markers and shared assertions.
• Cover functional, negative, contract and regression scenarios, including authentication and error handling.
• Keep suites stable and fast in Jenkins CI, report through Allure and investigate failures to the root cause.
• Use AI tools (Claude, Cursor, Copilot, AI agents or MCP) to generate tests from specs, analyse failures and speed up maintenance, and share what works with the team.
• Work inside a dev team: review API designs and specs, define acceptance criteria and close coverage gaps.
• Mentor other QA engineers and review their code.

Required profile

• 5+ years in test automation, at least 3 writing automation in Python with pytest (fixtures, parametrization, markers, conftest structure).
• Strong hands-on experience with the requests library and REST APIs (HTTP methods, headers, auth tokens and OAuth, JSON parsing and schema validation).
• Practical experience or solid knowledge of using AI tools in test automation (test generation, code review, debugging, AI agents or MCP).
• Experience designing a maintainable API test framework, not just writing test cases.
• Experience with CI/CD (Jenkins or similar) and Git workflows (branches, PRs, code review).
• Good written and spoken English.

Nice to have

• Testing AI or LLM-based APIs (non-deterministic output, evaluation approaches)
• SQL and data validation against a database
• Allure reporting, pytest-xdist, Docker
• Performance or load testing (Locust, k6 or similar)
• Basic Playwright or UI automation knowledge
• Background in fintech or investment data