Hi, I’m Christoph. For over 25 years I’ve been building open source tools that shape how millions of developers work, including projects I created like Jest, Metro, Yarn and jscodeshift. I previously led JavaScript Infrastructure and managed the React Native team at Facebook in Menlo Park and London.

Today, I work as an Engineering Director at Cloudflare and as CEO of Nakazawa Tech in Tokyo. Recently, I’ve been building:

• Athena Crisis — an open source turn-based strategy game built from scratch
• fate — a modern data client for React & tRPC
• Codiff — a fast diff viewer with walkthroughs
• fbtee — the JavaScript & React Internationalization Framework
• ReMDX — beautiful Minimalist React & MDX Presentations
• Starter templates: Mobile App, Web App, Server Template
• and way more…

I write about Frontend Development, Engineering Management, Leadership, and User Experience.

Open source has shaped my journey since I first published a project in 2006 and joined GitHub in June 2008. If you want to support this work, please consider a GitHub sponsorship.

Recent blog posts on cpojer.net

• Modern Engineering Values
• Fastest Frontend Tooling for Humans & AI
• You are absolutely right!?
• Athena Crisis is now Open Source
• I'm Building a Company
• Frontend Engineering Archetypes
• Fastest Frontend Tooling in 2022
• Mastering Tech Lead Management
• The Perfect Development Environment
• Set up a new Mac, Fast
• Building a JavaScript Bundler
• Building a JavaScript Testing Framework
• Rethinking JavaScript Infrastructure
• Dependency Managers Don’t Manage Your Dependencies
• Inclusion in a Distributed World
• The Nakazawa Management Starter Pack