Dan Bjornn

Dan Bjornn

Dan Bjornn

Lease End

LinkedIn

Bio

Dan Bjornn is a Senior Data Scientist at Lease End, where he builds AI systems behind the company's sales pipeline. He led the development of an SMS sales agent that generated over $12M in revenue last year, with work spanning fine-tuning, agent architecture, prompt engineering, and evaluations. Prior to Lease End, Dan worked at several early-stage startups. Most notably, he was an early employee at NeuroID, where he helped lay the technical foundations the company carried through to its acquisition by Experian. Dan holds a PhD in cognitive neuroscience and applies it directly to his work designing AI agents with human cognition as the reference model.

Session (1)

Day 23:20pm-3:40pmLeadership 2
Your Fine-Tuned Model Is Tech Debt: A 50x ROI House of Cards

Dan Bjornn is a Senior Data Scientist at Lease End with a PhD from BYU, applying machine learning to credit risk models and marketing segmentation. His recent writing on evaluation-driven development and LLM tokenization signals a hands-on practitioner perspective on bringing AI into production, making his session relevant for teams navigating real-world AI deployment challenges.

GitHub

@dkbjornn

Recent writing (3)

Public activity researched automatically · as of Jun 2026