About
I'm Humza Hasan.
I build the parts of the web people actually touch. Mostly in React, always in TypeScript.
I started out at TCS in 2018, working on banking platforms for Citibank APAC and Luminor Bank. Big codebases, strict reviews, real money moving through every click. It taught me to care about the boring stuff: tests, types, and code someone else can read at 2am.
In 2022 I joined the founding team at Seekho.ai, a Sequoia-backed startup. No design system, no legacy, no safety net. I built the web app from scratch and learned to ship fast without making a mess.
Now I'm a Senior Experience Engineer at Publicis Sapient, working with Verizon. My days are micro-frontends, Module Federation, and helping lots of teams ship into one product without stepping on each other.
Outside work I build side projects like QueryStack, ReadmeGenie and Sunar Studio, write on Dev.to and Medium, and explain how apps like Swiggy and Blinkit work under the hood. I live in Noida, India.
Want to work together? Here's how.

Timeline
2023 to now
Senior Experience Engineer, Publicis Sapient
Micro-frontends at scale for Verizon.
2022 to 2023
Founding team, frontend, Seekho.ai
Sequoia-backed. Built the web app from day one.
2018 to 2022
Frontend engineer, Tata Consultancy Services
Enterprise banking platforms for Citibank APAC and Luminor Bank.
Before that
B.Tech, Computer Science, MAKAUT, Kolkata
Where I wrote my first line of JavaScript and never stopped.