Résumé · Updated 2026-06-20
Md Obaidur Rahman
Engineering Leader · Full-Stack & Application Security
Summary
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.
Experience
Consultant, Cryptography
Jan 2026 — PresentLead the web and mobile engineering teams, owning system design and application security for Bangladesh's postal-voting infrastructure.
- Led the web development team and the mobile application development team, owning the security posture of all client-facing applications.
- Designed, built and led delivery of the secure public web portal, the RO (Returning Officer) portal for encrypted receipt of postal votes, the admin dashboard, the prisoner-voting portal, and the post-office constituency finder.
- Hardened authenticated, encrypted data flows, including secure NID API integration for the postal-vote application, in partnership with EC officials.
- Drove process discovery, requirements gathering, trusted key-data synchronisation (constituency mapping) and reporting with EC officials.
- Coordinated vendors on secure SDK/API integration (SMS, email) and infrastructure.
Stack: React, React Native, TypeScript, Node.js, OCI
Senior Power Platform Developer (Remote)
Dec 2023 — Dec 2025Architected enterprise applications across Microsoft Power Platform and modern web stacks.
- Architected and delivered enterprise solutions on Microsoft Power Platform.
- Built full-stack applications with the MERN stack, Next.js and REST APIs.
- Implemented secure authentication and encryption for sensitive business data.
- Integrated AI capabilities to automate and enhance business workflows.
Stack: Power Platform, React, Node.js, Express.js, Next.js
Software Engineer (Remote)
May 2019 — Apr 2025Led delivery of digital solutions for US federal clients across Dynamics 365 and open-source stacks.
- Led development of enterprise solutions using Microsoft Dynamics 365 and full-stack technologies (React, Angular, Node.js, Python, PHP).
- Implemented secure API design and data encryption for federal applications handling sensitive information.
- Managed deployments across AWS and Azure; mentored junior engineers and ran code reviews.
Stack: Dynamics 365, React, Angular, Node.js, Python, AWS, Azure
Full-Stack Web Developer (Freelance)
Apr 2016 — PresentTop Rated Plus freelancer delivering full-stack solutions across diverse client engagements.
- Delivered full-stack web solutions across a wide range of stacks under tight deadlines.
- Maintained a 100% client satisfaction rate over a decade of engagements.
Stack: JavaScript, TypeScript, React, Node.js, PHP
Skills
Application Security: Secure API design, Authentication & OAuth 2.0 / JWT, AES / RSA encryption, HTTPS/TLS, Web security best practices
Frontend & Mobile: React, React Native, Next.js, Angular, Vue.js, TypeScript, Tailwind CSS
Backend: Node.js, Express.js, GraphQL, Python, PHP / Laravel, C# / ASP.NET
Data: PostgreSQL, MySQL, MongoDB, Firebase
Cloud & DevOps: OCI, Azure, AWS, Docker, CI/CD, GitLab, GitHub Actions
Microsoft & Power Platform: Dynamics 365, Power Apps, Power Automate, Power BI, SharePoint
Education
Master of Computer Science
2019 — 2020Bachelor of Science
2012 — 2015Awards
Top Rated Plus Freelancer
2020Languages
Bengali (Native) · English (Fluent)