Senior Data Scientist (strong LLM) [J287]

Compensation: €54k – €120k • No equity

We’re looking for a Senior Data Scientist with strong hands-on experience in fine-tuning Large Language Models (LLMs) on proprietary data. You’ll work at the intersection of research and production, delivering high-performance, business-ready AI solutions.

What You’ll Do

• Prepare and curate proprietary datasets for LLM fine-tuning
• Fine-tune models using LoRA, QLoRA, GRPO, and related techniques
• Benchmark, evaluate, and iterate on model performance
• Deploy fine-tuned models into production inference pipelines
• Stay current with cutting-edge LLM research and apply relevant advances
• Collaborate with product, engineering, and business stakeholders

What We’re Looking For

• Proven experience fine-tuning LLMs on private/proprietary data
• Strong background in ML, NLP, and deep learning
• Hands-on with PyTorch or TensorFlow and