Senior Quality Assurance Engineer

At Ultralytics, we commit to relentless innovation in the AI space and seek team members who resonate with our ambition to produce the world's best YOLO AI models. If you're obsessed with AI, eager to make an impact on the world, and thrive in dynamic, high-intensity environments, we invite you to apply for a position on our team.

This full-time Senior Quality Assurance Engineer position is based in our Ultralytics office in Shenzhen, China, with a hybrid model of 3 days in-office and 2 days remote.

As a Senior Quality Assurance Engineer at Ultralytics, you will help ensure the quality, reliability, and performance of the Ultralytics Platform and our YOLO-powered workflows and APIs.

Key responsibilities include:

• Designing and maintaining automated test suites for our backend services, web UI, and APIs using Type Script and tools like Playwright
  .

• Leading end-to-end and browser-based testing strategy for our frontend using Playwright Test
  .

• Writing and maintaining API and integration tests for Next.js API routes, server components, and serverless deployments on Vercel.

• Validating data integrity and edge-case behavior across workflows that touch MongoDB
  , training pipelines, and inference services.

• Owning test infrastructure within CI/CD using Git Hub Actions
  , improving test reliability, parallelization, and signal-to-noise.

• Establishing testing patterns and best practices across a Turborepo monorepo with multiple apps.

• Mentoring junior engineers on testing strategies, code review, and quality-first development.

• Collaborating with Engineering and Product to clarify requirements, define acceptance criteria, and catch issues early.

• Contributing to internal QA documentation, test plans, and release readiness checks.

Your attention to detail and willingness to learn will be essential in supporting Ultralytics' mission of delivering top-tier machine learning tools and models to the community.

• 5+ years of experience in QA, test automation, or software engineering, with strong proficiency in Type Script ,
  Python
  , or both.

• Deep expertise with Playwright for browser automation and end-to-end testing.

• Solid understanding of API testing (REST/JSON), backend integration testing, and server component testing patterns.

• Experience with modern web stacks including Next.js
  , React
  , Type Script , serverless deployments (
  Vercel
  ), and cloud infrastructure (
  GCP
  ).

• Proficiency with CI/CD systems (especially Git Hub Actions
  ), test gating, and pipeline optimization.

• Experience working in monorepo environments with tools like Turborepo and Bun
  .

• Familiarity with MongoDB and database testing strategies.

• Proven ability to establish testing standards and mentor team members.

• Strong problem-solving skills and a track record of improving quality processes in fast-paced environments.

• Clear communication and the ability to collaborate across teams.

Ultralytics is a high-performance environment for world-class talent obsessed with achieving extraordinary results. We operate at a relentless pace, demanding exceptional dedication and an unwavering commitment to excellence. Our team thrives on audacious goals and absolute ownership. This is not a conventional workplace. If your priority is predictable comfort or a standard work-life balance over the relentless pursuit of progress, Ultralytics is not for you.

We seek driven individuals prepared for the profound personal investment required to make a defining contribution to the future of AI.

• Competitive salary: Highly competitive based on experience.

• Equity packages: Participate directly in our company's growth and success.

• Hybrid flexibility: 3 days per week in our brand-new office — 2…