About Yoginder Kumar
Call me Yogi.
Hey, Yoginder here. I'm a frontend engineer based in Pune, India.
I build products, or at least I try to. Six years in, my experience makes me a better fit as a frontend guy than as someone who's dabbled in every tech stack, so I've gone deep on building with React and React Native, but I'm open to working with other modern frontend tech too.
Work
- Rewriting a CRM/ERP nobody wanted to touchA ground-up frontend rewrite of an aging CRM/ERP, done with Product and Design and paired with Claude, Codex and Gemini.
- Reworking CashBook's web architecture, and an 8x jump in sessionsCashBook pivoted from personal book-keeping to managing businesses. I rebuilt the web app to catch up with mobile, and web sessions went up 8x.
- Building a voice-first AI app from a blank canvasA voice-first AI app with long-term memory, led end to end across UX, architecture and build.
Writing
- Why You Need a Design System, and Why AI Just Made It More UrgentA design system is three layers of tokens plus guardrails. What it's made of, when you need one, and why AI agents make building it first more urgent.
- What an 8-Year-Old Codebase Taught Me About AI's New Speed ExpectationsAI lets teams ship 5-10x faster, but nobody is pricing in the debt. What an 8-year-old Backbone codebase taught me about speed, planning and engineering.
Projects
Things I've built and things I'm building. See all projects.