AI Research Engineer

We're hiring exceptional AI researchers to shape the next generation of foundation models in Europe, both developing new AI models and architectures in-house and post‑training existing open‑source base models.

This is not a role focused only on applying existing models. You’ll work on both:

• developing new model architectures in‑house in support of deterministic simulation, and
• post‑training and adapting state‑of‑the‑art open‑source base models

Requirements

• Strong research track record in machine learning, deep learning, or foundation models: evidenced by research publications, open‑source contributions, or other evidence of original technical work
• Deep understanding of modern model architectures, training dynamics, inference optimization, scaling, and evaluation: transformer, diffusion, and exotic model architectures, sequence modeling, multimodal learning, and generative modeling
• Hands‑on experience training, fine‑tuning, or post‑training large models: in particular preference optimization, synthetic data, distillation, continual learning, or alignment
• Strong coding and experimental skills: ideally in Python (and/or Rust) and modern ML tooling
• Ability to move fluidly between research ideas and practical implementation: comfort quickly moving from concept to early‑proof right through to release and productization
• High agency, strong taste, and excitement about building something category‑defining from Europe: we’re looking for researchers who are all‑in

What you’ll work on

• Research and develop novel model architectures for reasoning, representation learning, and world modeling
• Post‑train and adapt open‑source foundation models for high‑performance real‑world use cases
• Design, run, and analyze experiments across training, evaluation, and scaling
• Work across data, systems, and product to turn research into deployed capability
• Contribute to research direction, technical strategy, and long‑term model roadmap
• Help define the culture and standards of a high‑talent, research‑driven founding team