VaxEPI – national vaccine registration portal
Bangladesh's official vaccine registration and management portal for the Expanded Programme on Immunization, plus its role-based admin dashboard.
ViewFull Stack Developer in Bangladesh
I'm Ashak Zahin Hasan, a full stack developer based in Dhaka, Bangladesh. I design and build complete web applications: the database, the API, the front end and the deployment pipeline.
I have 5+ years of professional experience and currently work as a Software Engineer L3 at ShareViral. Before that I built products at Zolo Inc., mPower Social Enterprises and Bioforge Health Systems, including national-scale health platforms in Bangladesh.
What I can build for you
- Custom web applications and SaaS products, from MVP to production
- Admin dashboards with role-based access control
- REST and GraphQL APIs with Node.js, Express and NestJS
- Database design with PostgreSQL, MongoDB and Redis
- Docker, CI/CD and AWS deployments
- Taking over and improving existing React / Node.js codebases
Tech stack
- React
- Next.js
- TypeScript
- Node.js
- Express
- NestJS
- PostgreSQL
- MongoDB
- Redis
- GraphQL
- Docker
- AWS
Relevant work
edMate – EdTech platform
Learning platform where schools manage students, teachers, classes and exams, and students join live classes and take exams online.
ViewTelemedicine platform
Health workers schedule virtual consultations between patients and community clinic doctors, with video calls (WebRTC) and patient history.
Taka Ache? – ATM finder for Bangladesh
Bilingual (English/Bangla) Next.js and MongoDB web app with location search and community-driven, real-time ATM status.
ViewFrequently asked questions
Do you work with clients outside Bangladesh?
Yes. I work remotely with teams and clients worldwide. I'm based in Dhaka, Bangladesh (GMT+6).
Are you available for full-time roles as well as freelance?
Yes. I'm open to full-time, contract, freelance and project-based work in full stack, frontend or backend roles.
Which tech stack do you recommend for a new web app?
For most products I use Next.js or React with TypeScript on the front end, Node.js (Express or NestJS) on the back end, and PostgreSQL. I'll suggest something different if your project needs it.