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Jay Hack

"Mathemagician." AI hacker, entrepreneur and angel investor.

I'm currently the Head of AI at ClickUp, where I lead our work on agents for general-purpose knowledge work.

Previously, I founded Codegen, a coding agent backed by Thrive that grew to serve Ramp, Notion, Ironclad and many more. Codegen was acquired by ClickUp in 2025.

Before that, I built AI-driven shopping at Mira AI Inc, intelligent data systems at Palantir, and studied CS/AI at Stanford.

This is my actual name and not a pseudonym.

work

Companies, products, and AI systems.

ClickUp Brain²

ClickUp · AI agents · Jun 2026

The culmination of Codegen's acquisition by ClickUp: a new agent harness for general-purpose knowledge work agents, powered by frontier models, tools, memory, compute, automations, and ClickUp's work graph.

ClickUp Brain² preview

Codegen

Founder · Acquired by ClickUp · Jan 2025

Codegen built autonomous agents for software engineering. Backed by Thrive Capital, customers included Ramp, Notion, Ironclad and ClickUp. Codegen was acquired by ClickUp in late 2025 and I became their head of AI.

Codegen preview

graph-sitter

Open source · Codegen · Jan 2025

Open-source library for programmatic codebase refactors, built on Tree-sitter and used as the foundation for Codegen's structural code-editing workflows.

graph-sitter preview

Mira AI, Inc.

AI shopping · Jun 2021

A big-data play for beauty, using computer vision and NLP to help shoppers find the products best suited to them via personalization. Backed by Unilever Ventures, acquired by Femtec Health.

Mira AI, Inc. preview