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Md Obaidur Rahman

Bangladesh · Postal-Voting Infrastructure

Leading teams that design, secure, and ship national-scale systems

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.

Open to engineering leadership and senior full-stack / security roles.
01

Featured work

Lead — Engineering, Application Security & Mobile

Bangladesh Postal Voting System

Secure web and mobile system enabling postal and prisoner voting at national scale.

ReactReact NativeTypeScriptNode.jsOCI
Jan 2026 — Present View case study →
02

Featured writing

All writing →
Writing

Securing a national postal-voting frontend

Notes on the application-security decisions behind voter-facing apps that handle regulated identity data.

application-securityfrontendcase-notes
Jun 15, 2026 Read post →
03

Experience

Full résumé →
Jan 2026 — Present

Consultant, Cryptography

Bangladesh Election Commission

Lead the web and mobile engineering teams, owning system design and application security for Bangladesh's postal-voting infrastructure.

ReactReact NativeTypeScriptNode.jsOCI
Dec 2023 — Dec 2025

Senior Power Platform Developer (Remote)

Modern IT

Architected enterprise applications across Microsoft Power Platform and modern web stacks.

Power PlatformReactNode.jsExpress.jsNext.js
May 2019 — Apr 2025

Software Engineer (Remote)

Concourse Federal Group

Led delivery of digital solutions for US federal clients across Dynamics 365 and open-source stacks.

Dynamics 365ReactAngularNode.jsPythonAWSAzure
Apr 2016 — Present

Full-Stack Web Developer (Freelance)

Upwork

Top Rated Plus freelancer delivering full-stack solutions across diverse client engagements.

JavaScriptTypeScriptReactNode.jsPHP
04

Verified facts

machine-readable · llms.txt
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.