# Md Obaidur Rahman

> Engineering Leader · Full-Stack & Application Security

Engineering leader with 13+ years building, securing, and shipping scalable web and mobile systems. I lead teams and own architecture end to end — from system design and full-stack delivery (React, React Native, Node.js, TypeScript) to application-security strategy for sensitive, regulated platforms. Currently consulting for the Bangladesh Election Commission, where I lead delivery and security for the country's postal-voting infrastructure. I'm equally at home setting technical direction, mentoring engineers, and hardening client-facing systems that handle high-stakes data.

- Location: Dhaka, Bangladesh
- Email: theobaidur@gmail.com
- GitHub: https://github.com/theobaidur
- LinkedIn: https://linkedin.com/in/theobaidur
- StackOverflow: https://stackoverflow.com/users/8145467/obie
- npm: https://npmjs.com/~theobaidur
- LeetCode: https://leetcode.com/theobaidur
- X: https://twitter.com/theobaidur

## Featured work

### Bangladesh Postal Voting System
Secure web and mobile system enabling postal and prisoner voting at national scale.
Role: Lead — Engineering, Application Security & Mobile


## Featured writing

### Securing a national postal-voting frontend
Notes on the application-security decisions behind voter-facing apps that handle regulated identity data.
Read: /blog/securing-postal-voting-frontend