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

Aleph Alpha · Heidelberg

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In brief

Aleph Alpha is hiring: Senior AI Researcher: LLM post-training for hallucination reduction in Heidelberg.

Duties

  • We are looking for a (Senior) AI Researcher to join our hallucination reduction capability team to push the boundaries in LLM post-training (SFT and…
  • We're one of the few places in Europe training foundation models from scratch.
  • You will be part of a team of (senior) researchers and PhD interns doing cutting-edge research across pre-, mid- and post-training, grounding and…
  • WHAT WILL YOU DO
  • Core Research & Development: Design, execute, and scale post-training methodologies (SFT, RL) specifically aimed at eliminating model hallucinations…

Required profile

  • Hands-on experience fine-tuning or post-training LLMs using modern distributed training frameworks.
  • Track record of research or implementation in at least one of the following domains:
  • Hallucination mitigation / truthfulness alignment / grounding in RAG
  • Uncertainty estimation, or out-of-distribution detection

Excerpt from the ad

Who we are Aleph Alpha’s mission is to deliver sovereign, human-centric AI to governmental institutions and large enterprises. To that end, we deliver category-defining AI innovation that enables open, accessible, and…

Source: ad by Aleph Alpha, published on Ashby. MakeYouFirst summarises this ad; the advertiser remains responsible for its content.

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FAQ

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The job is based in Heidelberg (Germany).

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Listing published by Youssef Douiri, founder of MakeYouFirst · Updated on 26 October 2026

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