About Us Vast.ai’s cloud powers AI projects and businesses all over the world. We are democratizing and decentralizing AI computing—reshaping our future for the benefit of humanity. We are a growing and highly motivated team dedicated to an ambitious technical plan. Our structure is flat, our ambitions are out‑sized, and leadership is earned by shipping excellence. We seek engineers with strong intrinsic drive, a true passion for advancing the state of the art, and a mix of architecture, coding, and communication skills. About the Role We’re hiring a QA Engineer to drive both manual and automated testing across our web applications and backend services in a Linux-first environment. This role is central to shipping reliable, high-performance software for a complex, always-on platform. You’ll work closely with Product and Engineering to define quality standards, catch issues early, and help deliver confident releases. This role is onsite 5 days a week in our Los Angeles (Westwood) office. What You'll Do • Execute manual, exploratory, and regression testing for web apps and backend services • Maintain and expand test plans for existing and upcoming features • Design high-signal test cases and build/extend automation where it matters most • Validate requirements and ensure releases are stable and defect-free • Investigate failures, identify root causes, and file clear, actionable tickets • Partner with Product and Engineering on acceptance criteria and release readiness Minimum Qualifications • 3+ years hands-on testing of web applications • Strong knowledge of test methodologies and their corresponding tools • Experience with writing test plans and test cases for assigned features • Experience with test automation • Keen eye for detail Nice to Have • Passionate about the future of AI • API testing with Postman/Newman or similar • Proficient with Linux • Experience with load testing tools Benefits • Work 5 days a week from the Vast.ai HQ in Los Angeles (Westwood) in an ambitious, fast-paced, AI-centered startup environment • Health, dental, vision and life insurance coverage • Pay: $40.00 / hour • 401(k) with company match • Meaningful early-stage equity • Onsite meals, snacks, and close collaboration with founders/tech leaders • Ambitious, fast-paced startup culture where initiative is rewarded