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.