Senior QA Engineer

Tana, a global biotechnology company, is seeking a talented and driven Senior QA Engineer to join its growing technology team. In this role, you will take ownership of quality assurance across a high-impact software platform used in cutting-edge life sciences and bioinformatics workflows. You will be a key figure in ensuring that every release meets the highest standards of reliability, performance, and accuracy.

This is more than a testing role — you will help shape the QA culture of the engineering organisation. From architecting automation frameworks and defining test strategies to mentoring junior engineers and collaborating with product teams, you will have real influence on how software quality is built and maintained. If you thrive in high-performance environments and take pride in meticulous, detail-driven work, this opportunity is for you.

• Design, develop, and maintain robust automated test frameworks and test suites that integrate seamlessly into the CI/CD pipeline.
• Conduct both manual and automated testing across the platform, identifying defects and verifying that software meets defined acceptance criteria.
• Extend and improve the existing automation suite to increase test coverage, reliability, and execution speed.
• Participate in the full software development lifecycle — from defining test requirements at project inception through to signing off releases for production.
• Track, triage, and manage defects and test issues, working closely with engineering and product teams to drive timely resolutions.
• Write, review, and maintain concise test documentation and revise legacy test cases to improve overall coverage.
• Mentor junior QA engineers, conducting code and test case reviews while championing best practices across the team.
• Collaborate actively with engineers, product managers, and stakeholders in an agile/Scrum delivery environment.

• Demonstrate 5+ years of hands-on Quality Assurance experience with a strong emphasis on test automation in production software environments.
• Design and implement end-to-end test frameworks and maintain scalable, maintainable test case libraries.
• Write clean, efficient automation code in Python across different testing contexts (UI, API, integration).
• Use Selenium WebDriver proficiently to build and manage browser-based automated test suites.
• Apply test frameworks such as Pytest to structure, organise, and report on test executions effectively.
• Navigate and operate test management platforms such as TestRail or Quality Center to manage test plans and results.
• Perform API testing using tools such as Postman or SoapUI and interpret results critically.
• Work autonomously and collaboratively within agile or Scrum-based delivery teams without requiring close supervision.
• Communicate findings, risks, and test results clearly in written and spoken English to both technical and non-technical stakeholders.
• Nice to Have: Familiarity with CI/CD pipelines (e.g., GitHub Actions, Jenkins); prior experience or academic exposure to bioinformatics; demonstrated experience managing QA projects end-to-end or leading QA teams.

Tana offers a competitive compensation package commensurate with experience. Based on Kenyan market benchmarks for senior-level technology professionals in biotech and software, the estimated monthly salary range for this role is KES 200,000 – 350,000. Specific remuneration will be confirmed during the hiring process. The role also comes with the opportunity to work on globally significant biotechnology software and to grow within a forward-thinking, mission-driven organisation.

Ideal Candidate: You are a seasoned QA professional who has moved well beyond manual testing and now thinks in frameworks, pipelines, and system-wide quality strategies. You are comfortable writing Python automation code from scratch, mentoring peers, and engaging in technical discussions with software engineers. You enjoy learning new domains — including life sciences and bioinformatics — and you see quality not as a gate but as a discipline embedded throughout the development process.

Do NOT apply if: You have fewer than 5 years of QA experience, have limited exposure to test automation or Python programming, prefer loosely structured work environments, or are looking for a purely manual testing role. This position demands a high level of technical rigour, self-direction, and accountability.

• Prepare an updated CV highlighting your QA automation experience, Python projects, and any frameworks you have built or maintained.
• Write a brief cover letter (or application note) explaining why this role aligns with your skills and career goals.
• Submit your application through the Tana careers portal or the job platform where you discovered this listing.
• Shortlisted candidates will be contacted for an initial screening call, followed by technical assessment and panel interviews.