Senior AI/ML Engineer

Talent Wanted. For hazardous journey. Small wages, bitter cold, long months of complete darkness, constant danger, safe return doubtful. Honour and recognition in case of success.

Fridtjof Nansen crossed the Arctic, going places no human had ever been. Together with our users, we're doing the same onchain: charting entirely new territory.

Nansen is a special company. We're building the single best product for onchain investing, allowing A New Way To Trade that's agentic, onchain, and fully integrated.

If you're looking for an adventure, you've come to the right place.

Our mission: Surface the signal and create winners.

You'll build the intelligence layer that powers that mission. That means working with 500M+ labeled blockchain addresses, training models on data no one else has, and shipping AI/ML systems that help real investors make better decisions and grow their portfolios.

• →Design and build AI/ML models on top of the richest onchain dataset in the world — then make them fast, scalable, and production-ready
• →Work shoulder-to-shoulder with engineers and product to ship models that actually reach users
• →Stay ahead of the curve in both AI/ML and blockchain — this space moves fast, and we need someone who moves faster
• →Level up the team: mentor junior engineers, raise the bar on what good looks like
• →Own your work end-to-end; from data pipeline to deployed feature

• You've shipped AI/ML at production scale — you have the scars and the portfolio to prove it
• Deep fluency in frameworks around Python, Generative AI and agents
• Deep expertise in LLMs, agent architectures, prompt engineering, and context engineering — across OpenAI, Anthropic, and beyond
• You can work the full data stack: feature engineering, pipelines, model serving. Data engineering experience is a genuine edge
• You don't just use AI as a tool. You think with it. AI-first isn't a checkbox, it's how you work
• Bonus: you know onchain, you care about crypto, and you have opinions about where this is going