Senior QA Engineer (Full-Stack, Backend-Focused)

Senior QA Engineer (Full-Stack, Backend-Focused)

Renesas Electronics

Lisbon, Portugal

About the Role

This is a Senior Full-stack QA role with a strong focus on backend, data validation, and deep system analysis.

A Day in the Life of Our Senior QA Engineer

• Own end-to-end quality of features within the team;
• Test backend APIs (REST/GraphQL) and data flows;
• Analyze complex system behavior and edge cases;
• Validate data integrity across services;
• Perform exploratory testing and root cause analysis;
• Collaborate with developers on design and testability;
• Write automated tests using existing frameworks when needed.

Qualifications

What We’re Looking For

• 4+ years of experience as a QA Engineer;
• Strong experience with web applications and APIs;
• Solid understanding of backend systems;
• Strong analytical and problem-solving skills;
• Experience with test design for complex scenarios;
• Experience working in product teams;
• Familiarity with CI/CD and Git.

Nice to have

• Experience with GraphQL (R365 backend is GraphQL-based);
• Experience in EDA/electronics/CAD domains;
• Experience in desktop application testing;
• Experience with automation testing (Selenium/Playwright).