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Working Student QA Engineer – AI, LLM Systems
ControlExpert GmbHWorking Student QA Engineer focusing on AI systems and large language models at ControlExpert in Langenfeld, supporting test case design and execution.
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
software testingQA principlesPythonTypeScripttest automationAILLMsmulti-step reasoningtool usagedecision flows
Soft Skills
analytical mindsetattention to detailcuriositygood communication skills
Tools & Technologies
AWSBedrockAPIsPlaywright
Industry Keywords
AI systemsagent-based systemsautomated test suitesedge caseshallucinationsfailure modestest casesend-to-end pipelinesprompts evaluationagent configurations
Tech Stack
Tools & technologiesAWSPythonTypeScript
About the role
Key responsibilities & impact- Design and execute test cases for AI agent workflows (multi-step reasoning, tool usage, decision flows)
- Validate outputs of LLM-based systems for correctness and consistency
- Test end-to-end agentic pipelines
- Identify edge cases, hallucinations, and failure modes
- Support evaluation of prompts and agent configurations
- Assist in building automated test suites using Python or Playwright
- Collaborate with developers and AI engineers
- Document test results and recommendations for improvement
Requirements
What you’ll need- Currently studying Computer Science, AI, Data Science, or a related field
- Basic understanding of software testing / QA principles and a strong interest in AI, LLMs, or agent-based systems
- Experience with Python or TypeScript and initial exposure to AWS (e.g., Bedrock), APIs, or test automation tools
- Analytical mindset, attention to detail, and curiosity about how AI systems reason and fail
- Good communication skills in German and English
Benefits
Comp & perks- Flexible working hours with up to 60% remote work
- Fitness and wellness benefits via Urban Sports Club
- Numerous employee events (sports activities, after-work meetups, parties, ...)
- On-site kitchen offering a tasty lunch at a reasonable price
- Attractive discounts and vouchers