# Harshit Sharma

> Harshit Sharma is a software engineer and product builder creating developer tools, web products, and practical deep dives into how software works.

Source: https://www.harxit.com/

I'm a [software engineer](https://www.harxit.com/about) who loves building useful [products](https://www.harxit.com/products) and shipping them fast. Currently working as a Product Engineer at [YBM](https://yourbrandmate.agency/?utm_source=harshit_portfolio) & [YBM Labs](https://ybmlabs.com/?utm_source=harshit_portfolio), previously I was a Founding Engineer at Tracks and Towers where I built a [construction ERP](https://buildenfra.in) handling 80Cr+ quarterly billing.

In my spare time, I build tools that solve problems I run into. If something annoys me enough, it becomes a product, whether that's developer tooling, browser extensions, or whatever gets the job done.

## Selected work and writing

- [LeetSense](https://www.harxit.com/products/leetsense) — I added IntelliSense to LeetCode 😏
- [Better Auth DevTools](https://www.harxit.com/products/better-auth-devtools) — Stop logging in and out to test role-based UIs.
- [YT Dimmer](https://www.harxit.com/products/yt-dimmer) — Bright scenes? Dimmed 😎
- [How Does WhatsApp Encryption Work?](https://www.harxit.com/blog/how-whatsapp-encryption-works) — Paint mixing, rotating keys, prekeys, and the places encryption stops protecting you.
- [How HLS Video Streaming Works](https://www.harxit.com/blog/how-hls-video-streaming-works) — Segments, playlists, and adaptive bitrate. How one video becomes hundreds of files before you press play.
- [How UPI Actually Moves Your Money](https://www.harxit.com/blog/how-upi-actually-moves-your-money) — You tap a button and money teleports. Here's what actually happens in those 3 seconds.
- [Building Diff Is Way Harder Than It Looks](https://www.harxit.com/blog/building-diff-is-way-harder-than-it-looks) — I thought diff was a simple loop. It's actually a shortest-path problem.

You can explore my [writing](https://www.harxit.com/writing), or grab my [resume](https://www.harxit.com/resume). I'm active on [Twitter](https://x.com/itsharxit) if you want to follow along, or just reach out directly at [hey@harxit.com](mailto:hey@harxit.com).