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Open nowPosted 39 days ago

Senior QA Automation Engineer

ling1 open role

Where
Chiang Mai
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Your applicationOpen nowSenior QA Automation Engineerling · Chiang Mai

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  5. 34.1%30 days
This job: posted 39 days ago

The posting

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

Your year-one priorities

There is a lot we could automate, but these are the areas we expect you to focus on first:

  1. 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.
  2. Build out mobile automation - own and expand our Maestro coverage across iOS and Android, prioritizing the most important user journeys and regression risks.
  3. Make API testing part of the development workflow - expand Bruno coverage and run the relevant API tests automatically in CI on every merge.
  4. 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.

Requirements

  • 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.

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:

  • 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
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