AI Quality Engineer

Start.io is a sell-side omnichannel advertising platform powered by real-time mobile audiences. We deliver hundreds of millions of ads per day across thousands of global leading apps and websites. Our platform uses AI to deliver more efficient, effective and precise digital advertising campaigns. Our direct integration with thousands of mobile publishers gives us access to more than 50 billion first-party data signals per day across the globe. Marketers use these anonymized signals to understand and predict consumer behavior, identify new opportunities and fuel business growth.

We are looking for a hands-on AI QA Technical Lead to drive the technical evolution of our QA organization through AI. Your mission will be to identify opportunities across the QA lifecycle and turn them into practical, scalable AI-powered capabilities that help the entire QA team work faster, smarter and with higher quality. You will design and build AI-powered tools, agents, workflows and integrations used by QA engineers across the testing lifecycle - from test design and automation to test data generation, debugging and failure investigation. This is a hands-on technical leadership role with a strong focus on building, experimentation and innovation.

• 5+ years of hands-on experience in Software Quality Engineering, Test Automation or Software Engineering.
• Strong experience with test automation frameworks such as Playwright, Cypress or similar.
• Strong programming skills in JavaScript/TypeScript or Python.
• Hands-on experience building AI-powered tools, applications, workflows or agents using LLMs.
• Practical understanding of agentic workflows, prompt and context engineering, tool calling, MCP and API integrations.
• Experience turning experimental solutions into reliable and maintainable engineering products.
• Strong QA fundamentals, including test design, regression testing and exploratory testing.
• Experience with APIs, databases and distributed systems.
• Experience with CI/CD systems such as GitHub Actions, Jenkins or similar.
• Strong problem-solving skills and ability to independently drive technical initiatives.

• Experience evaluating LLM or agent output and measuring AI solution quality.
• Experience building internal developer, engineering or QA platforms.
• Experience with observability and distributed systems.
• Experience integrating AI with tools such as GitHub, Jira, Confluence or CI/CD platforms.
• Experience with Kubernetes or cloud infrastructure.
• AdTech or programmatic advertising experience.

• →Design, build and evolve AI-powered tools, agents and workflows that improve the efficiency and quality of the QA team.
• →Identify repetitive or high-impact QA activities and turn them into scalable AI-enabled solutions.
• →Build integrations between AI capabilities and our testing, engineering and internal systems.
• →Define technical standards and best practices for AI-powered QA solutions, including prompts, context, tools, agent workflows and human-in-the-loop processes.
• →Build mechanisms to evaluate AI output, measure quality and detect regressions.
• →Monitor and improve the reliability, performance and cost of AI-powered solutions.
• →Act as the technical focal point for AI within the QA team and help drive adoption, knowledge sharing and experimentation.
• →Work closely with QA engineers and engineering teams to turn real-world challenges into practical solutions.