Chris Witko
Human building software · 20+ yrs

Hello, I’m Chris. I build apps and interfaces for the web and the pocket — and I try to live well outside the screen too. Running, lifting, reading slowly, staying curious. Twenty years of shipping, longer of paying attention.

About

Full-stack developer by trade, quiet and careful by temperament. I build things for browsers and phones — and the systems that keep them running. Frontend to backend, prototype to production.

Currently leading engineering at Wenya, my latest commercial project, and shipping Kalorique™, a calm companion for building healthy habits that stick. Small things on GitHub.

Selected work

Stack

React, Next.js, TypeScript. Node, Express, Prisma, serverless on AWS. MongoDB, DynamoDB, MySQL, Redis. React Native, Expo, SwiftUI. Jest, Vitest, Cypress. Stripe, PayPal. Docker, Jenkins. LLM integrations.

Off the keyboard

Three things keep me honest outside of code. I run — long roads, quiet mornings, the meditative rhythm of laps. I lift — slowly working on the body, because writing code for twenty years takes a toll. And I read, for the pleasure of it. A running inventory of what’s been worth the time lives on /library.

The half marathon is my preferred distance — long enough to mean something, short enough to enjoy. Two behind me, three more on the calendar.

Only while sleeping one makes no mistakes. Making mistakes is the privilege of the active — of those who can correct their mistakes and put them right.From the diary