Head of AI

About the role

Poesis is an AI-native investment firm that runs autonomous agents to predict markets, build portfolios and manage risk. As Head of AI you will lead its AI strategy and research, setting the technical direction for applying frontier AI to investing. The role is hands-on: you will set the research agenda while working directly on technical challenges.

Key responsibilities

• Set the AI research direction, identify the hardest problems worth solving and guide the team's technical work.
• Push the capabilities of foundation models, agentic systems and world models through new architectures and research approaches.
• Explore pre-training, mid-training and post-training methods to improve how models learn, reason and adapt.
• Advance tabular ML research, including emerging methods such as prior-data fitted networks (PFNs).
• Tackle learning from small, high-dimensional datasets where traditional ML methods struggle.
• Turn promising research into models and systems that solve difficult real-world problems.

Required profile

• Exceptional AI research at a frontier AI lab, leading research initiatives and helping set technical direction.
• Deep expertise in modern AI architectures, model training and machine learning.
• Strong research track record, including relevant publications.
• Strong mathematical and statistical foundations and ability to tackle difficult problems with limited, complex data.
• Nice to have: experience with frontier tabular ML methods and applying ML to financial markets or high-dimensional datasets.

What we offer

• Hybrid setup: 3 days per week on-site at the Menlo Park, London or Zurich office; relocation allowance available.
• Competitive cash compensation plus equity and carry (share of fund profits).
• Medical, dental and vision coverage, plus catered lunches and commuter benefits.
• For U.S. candidates, legal authorization to work in the US is required; work visa sponsorship available for full-time employees.