Quality Assurance Engineer - Automation

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.