ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.
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 experience with a strong focus on automation
- Proficient in Python for test scripting
- Hands-on experience with Playwright and/or Selenium WebDriver
- Solid understanding of SDLC, STLC, and QA methodologies (manual + automated)
- Experience with test management/bug tracking tools (JIRA, TestRail, Zephyr)
- Familiarity with version control and CI/CD pipelines
- Experience with API testing tools/libraries (Postman, requests, REST Assured)
- Strong understanding of test design techniques (boundary value analysis, equivalence partitioning, etc.)
- Good analytical, debugging, and communication skills
Preferred/Nice-to-Have
- Experience with pytest or unittest frameworks
- Exposure to Docker/containerized test environments
- Experience with BDD frameworks (Behave, pytest-bdd, Cucumber)
- ISTQB certification
- Basic SQL/database validations
For US-based roles - What you’ll get:
- Competitive salary + annual performance-based bonus eligibility
- Medical, dental, and vision insurance
- 401(k) with company match
- Paid time off and company holidays
For Mexico-based roles - What you’ll get:
- Competitive salary + annual performance bonus eligibility
- Christmas Bonus (Aguinaldo): 30 days
- Major medical expenses and life insurance
- Paid time off and holidays (per local policy)
For all roles:
- Professional development and growth opportunities
- Opportunity to grow with a mission-driven team shaping the future of clean energy
- Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
- Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com
- Benefits vary by role and location and are subject to change.