Introduction Ling is a language learning app with 2M+ learners across 70+ languages. Our engineering team is small, and we test alongside development rather than at the end. We already use Maestro, Bruno, AI code-review agents, and nightly AI-driven chaos testing. We want someone to take our automation and AI-driven testing to the next level. 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 <h3> </h3><h4>Your year-one priorities</h4> There is a lot we could automate, but these are the areas we expect you to focus on first: <ol><li style="font-family:Verdana, Geneva, sans-serif;">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.</li><li style="font-family:Verdana, Geneva, sans-serif;">Build out mobile automation - own and expand our Maestro coverage across iOS and Android, prioritizing the most important user journeys and regression risks.</li><li style="font-family:Verdana, Geneva, sans-serif;">Make API testing part of the development workflow - expand Bruno coverage and run the relevant API tests automatically in CI on every merge.</li><li style="font-family:Verdana, Geneva, sans-serif;">Improve our feedback loop from production to tests - triage production issues, identify the missing coverage, and turn real-world failures into regression tests.</li></ol>Chaos testing, exploratory testing, release coverage, and continuous improvement of the broader QA stack remain important parts of the role. Responsibilities <h4>Automation and tooling</h4><ul><li style="font-family:Verdana, Geneva, sans-serif;">Own and grow the Maestro test suite across iOS and Android.</li><li style="font-family:Verdana, Geneva, sans-serif;">Extend API test coverage in Bruno and integrate it into CI.</li><li style="font-family:Verdana, Geneva, sans-serif;">Build and maintain AI-driven testing workflows using Claude, MCP device automation, and tools such as Maestro MCP, Agent Device, and Argent MCP.</li><li style="font-family:Verdana, Geneva, sans-serif;">Build agents that compare code changes against tickets and flag what needs testing.</li><li style="font-family:Verdana, Geneva, sans-serif;">Keep nightly AI-driven chaos testing running and make it better, including video capture and reporting back into tickets.</li><li style="font-family:Verdana, Geneva, sans-serif;">Decide what should be automated next, prioritize it based on risk and value, and make the case to the team.</li><li style="font-family:Verdana, Geneva, sans-serif;">Evaluate new AI and testing tools as the ecosystem evolves and bring useful ones into the team's workflow. </li></ul><h4>Testing and releases</h4><ul><li>Perform hands-on testing of new features, edge cases, and exploratory scenarios.</li><li>Own release regression and smoke coverage across iOS and Android.</li><li>Test in-app purchases and subscriptions on the App Store and Google Play.</li><li>Triage production issues using Firebase Crashlytics, Bugsnag, and related diagnostics, then add regression coverage for the underlying issue.</li><li>Read specs and designs early and give feedback before code exists.</li><li>Verify feature flags and Firebase Remote Config rollouts, including A/B variants.</li><li>Use Firebase Test Lab and other device-testing infrastructure where appropriate.</li><li>Balance automation with targeted manual testing where human judgment adds the most value. </li></ul><h4>Team</h4><ul><li>Mentor the two QA engineers on automation, scripting, and AI tooling, including regular pairing sessions.</li><li>Run knowledge-sharing sessions and keep testing documentation current.</li><li>Help move the team from manual-first testing toward an automation-first mindset.</li><li>Work with engineers to make testing part of their development process rather than something QA handles at the end.</li></ul> Requirements <ul><li style="font-family:Verdana, Geneva, sans-serif;">4+ years of hands-on QA experience, including significant experience testing mobile applications.</li><li style="font-family:Verdana, Geneva, sans-serif;">Strong hands-on experience testing both iOS and Android.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience building and maintaining automated tests used by a real engineering team.</li><li style="font-family:Verdana, Geneva, sans-serif;">Strong experience with mobile automation, ideally including Maestro.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with API test automation, ideally including Bruno.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with CI/CD pipelines and integrating automated tests into development workflows.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with AI-assisted testing or AI agent tooling, with shipped automation or workflows you can demonstrate.</li><li style="font-family:Verdana, Geneva, sans-serif;">Hands-on experience with MCP-based tooling or agent-driven device automation.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with chaos testing, fuzz testing, or other approaches to finding unexpected failures.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience testing in-app purchases and subscriptions on the App Store and Google Play.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience testing Stripe payments or similar web payment flows.</li><li style="font-family:Verdana, Geneva, sans-serif;">Hands-on experience with Firebase Crashlytics, Remote Config, and Test Lab.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience mentoring or leading other QA engineers.</li><li style="font-family:Verdana, Geneva, sans-serif;">Scripting experience in JavaScript/TypeScript or similar.</li><li style="font-family:Verdana, Geneva, sans-serif;">Strong written and spoken English communication.</li><li style="font-family:Verdana, Geneva, sans-serif;">A track record of taking ownership: you see a gap in the testing process and build something to close it.</li></ul> Desired Qualifications <ul><li style="font-family:Verdana, Geneva, sans-serif;">Playwright or similar web automation experience.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience designing or maintaining AI agents for software testing.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with MCP tooling beyond mobile automation.</li><li style="font-family:Verdana, Geneva, sans-serif;">Experience with performance testing or observability tooling.</li></ul> How To Apply 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:<ul><li style="font-family:Verdana, Geneva, sans-serif;">A brief introduction of yourself - name, background, and a few personal details</li><li style="font-family:Verdana, Geneva, sans-serif;">Why you’re interested in this position</li><li style="font-family:Verdana, Geneva, sans-serif;">A highlight of your relevant skills or experience that make you a great fit for the role</li><li style="font-family:Verdana, Geneva, sans-serif;">(Optional) Any personal interests or passions that help us understand who you are</li></ul>Uploading your video:<ul><li style="font-family:Verdana, Geneva, sans-serif;">Once your video is ready, please upload it to Google Drive</li><li style="font-family:Verdana, Geneva, sans-serif;">Ensure anyone can view the video via the Google Drive link</li><li style="font-family:Verdana, Geneva, sans-serif;">Paste the link to your video into the application form</li></ul>

Senior QA Automation Engineer @ Ling

About this role

Ready to apply?