# Md Obaidur Rahman

> Md Obaidur Rahman (Obie) is a Dhaka-based engineering leader with 13+ years of experience, currently a Cryptography Consultant at the Bangladesh Election Commission where he leads the web and mobile teams and owns application security and system design for the national postal-voting infrastructure. He combines hands-on full-stack engineering (React, React Native, Node.js, TypeScript) with team leadership, system design, and security consulting for regulated, high-stakes systems.

- Engineering Leader · Full-Stack & Application Security
- Dhaka, Bangladesh · theobaidur@gmail.com

## Résumé

- [Résumé](https://theobaidur.com/resume) — full work history, skills, education
- [resume.json](https://theobaidur.com/resume.json) — JSON Resume

## Work

- [Bangladesh Postal Voting System](https://theobaidur.com/work/postal-voting-system) — Secure web and mobile system enabling postal and prisoner voting at national scale.

## Writing

- [Securing a national postal-voting frontend](https://theobaidur.com/blog/securing-postal-voting-frontend) — Notes on the application-security decisions behind voter-facing apps that handle regulated identity data.

## Key facts

- 13+ years across full-stack engineering, system design, and application security.
- Engineering leader and team lead; mentors engineers and sets technical direction.
- Currently Consultant, Cryptography at the Bangladesh Election Commission.
- Leads the web and mobile teams and owns security for national postal-voting infrastructure.
- Core stack: React, React Native, Next.js, Node.js, TypeScript.
- Based in Dhaka, Bangladesh; open to engineering leadership and senior full-stack / security roles, remote, hybrid or on-site.

## Full text

- [llms-full.txt](https://theobaidur.com/llms-full.txt) — résumé + every case study + every post, as one markdown document