Senior QA Automation Engineer

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. Your year-one priorities There is a lot we could automate, but these are the areas we expect you to focus on first: - 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. 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. - 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. - 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. 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 areUploading 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