We're looking for a Founding AI Engineer to join nao Labs and help define the future of data work.

You should have deep experience across the generative AI stack—from model training, fine-tuning, and evaluation to advanced techniques like pre-prompting, RL for Fill-in-the-Middle (FIM), code generation, and task-specific adaptation.

You will:

• Lead AI development at nao Labs
• Train, fine-tune, and evaluate models for data engineering, analytics and science related tasks
• Apply RL and other techniques for next-gen FIM and codegen systems
• Build internal tooling for efficient experimentation and deployment

You are:

• An expert in LLMs, transformers, RLHF, and code models
• Hands-on with training pipelines, distributed training, and evaluation metrics
• Entrepreneurial — ready to build, ship, and iterate fast

We are a YC company (X25), you will join a fast-pace environnement, you will build the future of data work.

Localisation: Paris or remote (friendly timezone)

Compensation: Competitive salary + early equity.