ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience.

Job Summary

We are looking for a QA Engineer with strong Python skills and hands-on experience in UI automation (Playwright, Selenium) to design, build, and maintain automated test suites. You'll work closely with developers and product teams to ensure high-quality releases through a mix of automated and manual testing practices.

Key Responsibilities
- Design, develop, and maintain automated UI test scripts using Playwright and/or Selenium with Python




- Build and maintain a scalable test automation framework (Page Object Model or similar design patterns)
- Perform API testing (using Postman, requests library, or REST Assured) to validate backend functionality
- Integrate automated tests into CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, Azure DevOps)
- Identify, log, and track defects through resolution using tools like JIRA
- Analyze test results, debug failures, and maintain test stability (handling flaky tests, waits, synchronization issues)
- Collaborate with developers and product owners to understand requirements and define test strategy/coverage
- Participate in Agile/Scrum ceremonies (sprint planning, stand-ups, retrospectives)
- Maintain test documentation — test plans, test cases, and automation coverage reports
- Contribute to code reviews of test scripts and automation framework improvements

Required Skills & Qualifications
- 3–5 years of QA experienc

📌 Quality Assurance Engineer (México)
🏢 On.Energy
📍 México