[Hiring] Senior QA Automation Engineer @Ling

Role Description

You'll own the automation roadmap, automate what is still manual, and help engineers take greater ownership of testing. We're looking for a hands-on builder who uses AI tooling daily and turns new ideas into reliable workflows. This is a senior IC role with mentorship responsibility for two QA engineers, with potential to grow into QA leadership as the team expands. Roughly 60% of the role is automation and tooling; 40% is hands-on testing and release sign-off.

Expectations and Outcomes

Your year-one priorities:

• Build AI-driven testing into the engineering workflow
  • Develop and maintain Claude routines, MCP-based device automation, and agents that identify what needs testing based on code changes and tickets.
• Build out mobile automation
  • Own and expand our Maestro coverage across iOS and Android, prioritizing the most important user journeys and regression risks.
• Make API testing part of the development workflow
  • Expand Bruno coverage and run the relevant API tests automatically in CI on every merge.
• Improve our feedback loop from production to tests
  • Triage production issues, identify the missing coverage, and turn real-world failures into regression tests.
• Chaos testing, exploratory testing, release coverage, and continuous improvement of the broader QA stack remain important parts of the role.

Responsibilities

• Automation and tooling
  • Own and grow the Maestro test suite across iOS and Android.
  • Extend API test coverage in Bruno and integrate it into CI.
  • Build and maintain AI-driven testing workflows using Claude, MCP device automation, and tools such as Maestro MCP, Agent Device, and Argent MCP.
  • Build agents that compare code changes against tickets and flag what needs testing.
  • Keep nightly AI-driven chaos testing running and make it better, including video capture and reporting back into tickets.
  • Decide what should be automated next, prioritize it based on risk and value, and make the case to the team.
  • Evaluate new AI and testing tools as the ecosystem evolves and bring useful ones into the team's workflow.
• Testing and releases
  • Perform hands-on testing of new features, edge cases, and exploratory scenarios.
  • Own release regression and smoke coverage across iOS and Android.
  • Test in-app purchases and subscriptions on the App Store and Google Play.
  • Triage production issues using Firebase Crashlytics, Bugsnag, and related diagnostics, then add regression coverage for the underlying issue.
  • Read specs and designs early and give feedback before code exists.
  • Verify feature flags and Firebase Remote Config rollouts, including A/B variants.
  • Use Firebase Test Lab and other device-testing infrastructure where appropriate.
  • Balance automation with targeted manual testing where human judgment adds the most value.
• Team
  • Mentor the two QA engineers on automation, scripting, and AI tooling, including regular pairing sessions.
  • Run knowledge-sharing sessions and keep testing documentation current.
  • Help move the team from manual-first testing toward an automation-first mindset.
  • Work with engineers to make testing part of their development process rather than something QA handles at the end.

Qualifications

• 4+ years of hands-on QA experience, including significant experience testing mobile applications.
• Strong hands-on experience testing both iOS and Android.
• Experience building and maintaining automated tests used by a real engineering team.
• Strong experience with mobile automation, ideally including Maestro.
• Experience with API test automation, ideally including Bruno.
• Experience with CI/CD pipelines and integrating automated tests into development workflows.
• Experience with AI-assisted testing or AI agent tooling, with shipped automation or workflows you can demonstrate.
• Hands-on experience with MCP-based tooling or agent-driven device automation.
• Experience with chaos testing, fuzz testing, or other approaches to finding unexpected failures.
• Experience testing in-app purchases and subscriptions on the App Store and Google Play.
• Experience testing Stripe payments or similar web payment flows.
• Hands-on experience with Firebase Crashlytics, Remote Config, and Test Lab.
• Experience mentoring or leading other QA engineers.
• Scripting experience in JavaScript/TypeScript or similar.
• Strong written and spoken English communication.
• A track record of taking ownership: you see a gap in the testing process and build something to close it.

Desired Qualifications

• Playwright or similar web automation experience.
• Experience designing or maintaining AI agents for software testing.
• Experience with MCP tooling beyond mobile automation.
• Experience with performance testing or observability tooling.

Benefits

• As part of the application process, we would like you to record a brief 2-minute video introduction to help us get to know you better.
• Please include the following in your video:
  • A brief introduction of yourself - name, background, and a few personal details.
  • Why you’re interested in this position.
  • A highlight of your relevant skills or experience that make you a great fit for the role.
  • (Optional) Any personal interests or passions that help us understand who you are.
• Uploading your video:
  • Once your video is ready, please upload it to Google Drive.
  • Ensure anyone can view the video via the Google Drive link.
  • Paste the link to your video into the application form.