Quality Assurance Engineer - Automation

ON.energy is setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center. With multiple gigawatts currently under construction, we are enabling grid-safe data centers. 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. - Benefits vary by role and location and are subject to change. Agency Notice: ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.