Senior QA Engineer - AI Products (6 months contract)

We are looking for a Senior QA Engineer to own quality across our AI products. You will test LLM-powered features end to end, build automated test and evaluation suites, and help ensure every release is accurate, safe, and reliable. Responsibilities Define test strategies and plans for AI features across web, API, and backend Evaluate model outputs for accuracy, consistency, hallucinations, bias, and safety Build evaluation datasets, including edge cases and adversarial / red-team prompts Develop and maintain automated UI, API, and regression tests integrated into CI/CD Run regression testing on model, prompt, and configuration changes Test performance, latency, error handling, and fallback behavior Report defects clearly and provide release-readiness sign-off Test non-deterministic outputs using scoring rubrics, LLM-as-judge, human evaluation, and defined pass/fail thresholds Perform AI security testing, including prompt injection, jailbreaks, and PII / data leakage across chatbots, RAG, and agents Work with ML engineers and product managers to define quality metrics and acceptance criteria Where applicable, monitor production quality and model drift after release Requirements 7+ years of experience in QA / software testing, with strong test automation background. Proven experience testing AI/ML or LLM-based products (chatbots, RAG, agents, etc.) Hands-on scripting experience in Python and/or TypeScript/JavaScript Hands-on with at least one UI automation framework (Playwright, Cypress, Selenium) and a test framework such as Pytest API testing with Postman, REST Assured, or similar Experience with LLM evaluation tools CI/CD and version control: GitHub Actions, GitLab CI or Jenkins; Git Test management and tracking: Jira, TestRail, or Zephyr Excellent written English and clear bug reporting Nice to Have Performance/load testing (k6, JMeter, Locust) Understanding of prompt engineering, embeddings, and vector databases Experience with AI safety, red-teaming, or content policy testing Cloud experience (AWS, GCP, or Azure) and Docker Show more Show less