Senior AI Researcher: LLM post-training for hallucination reduction (f/m/d)

Kurz zusammengefasst

alephα, based in Heidelberg, seeks a Senior AI Researcher to lead post‑training work that reduces hallucinations in large language models. The role involves building sophisticated pipelines, running thorough evaluation experiments, and working each day with data scientists, engineers, and product managers to embed reliable AI into the company's platform. Day‑to‑day tasks include designing and implementing fine‑tuning procedures, applying prompt‑engineering and retrieval‑augmented generation techniques, performing statistical error analysis, and documenting results for publication and product integration. The position offers the opportunity to influence trustworthy AI development at a fast‑growing, research‑focused firm. What the role asks for: - Ph.D. in Computer Science, Machine Learning, or related field - Minimum 4 years experience fine‑tuning large language models - Strong expertise in prompt engineering - Experience with retrieval‑augmented generation - Skill in statistical error analysis - Published peer‑reviewed research on model reliability - Proficiency in Python - Experience with PyTorch or TensorFlow - Familiarity with distributed training frameworks such as DeepSpeed or ZeRO