Frontend
- Angular
- TypeScript
- JavaScript ES6+
- RxJS
- Angular Material
- HTML5
- CSS3 / SCSS
- Bootstrap
Available for impactful opportunities
Engineering digital products that stay fast, useful and ready to scale.
I’m Raiyan, a senior full-stack developer turning complex climate, Agritech and SaaS challenges into dependable web products used across Asia-Pacific and Africa.
Based inDhaka, Bangladesh
5+years building
production software
production software
8countries reached
through my work
through my work
<400msadvisory generation
down from 60 sec
down from 60 sec
Angular✦TypeScript✦Node.js✦NestJS✦Django✦PostgreSQL✦Redis✦Docker
01 Profile
A product-minded engineering partner
I build for the people using the product and the team maintaining it.
With more than five years of experience, I design and develop scalable web applications, SaaS platforms and enterprise systems from interface architecture through API and database design.
My work combines careful engineering with practical product thinking: clear interfaces, resilient backends, efficient queries and code that distributed teams can confidently extend.
01
Performance is a feature. Fast feedback and thoughtful loading strategies are part of the experience.
02
Architecture should enable change. Modular systems keep growth sustainable.
03
Clarity beats cleverness. Maintainable code makes teams and products move faster.
Backend
- Node.js
- NestJS
- Django
- Express.js
- REST APIs
- Redis
Data & architecture
- PostgreSQL
- SQL
- Knex.js
- Schema design
- Query optimization
- Authentication
- State management
Tools & delivery
- Git & GitHub
- Docker
- Postman
- Firebase Hosting
- Hostinger
- GA4
02 Experience
Five years of steady progression
From reusable interfaces to international product leadership.
01
Senior Full Stack Developer
RIMES
Regional Integrated Multi-Hazard Early Warning System
- Lead Angular development for climate and Agritech systems delivered across eight countries.
- Upgraded applications from Angular 14 to 17, reducing build times by 30–60%.
- Improved UI performance with lazy loading, caching and pragmatic state management.
- Integrate weather REST APIs and lead code reviews with distributed international teams.
02
Junior Software Engineer
Intelletive Technologies Bangladesh
- Developed enterprise SaaS products with Angular, TypeScript, NestJS and PostgreSQL.
- Built responsive dashboards and reusable interface systems backed by REST APIs.
- Helped migrate a Restify backend to NestJS for stronger scalability and maintainability.
03 Selected work
Systems with real-world reach
Complex engineering, translated into measurable outcomes.
Selected products spanning climate resilience, field operations, national forecasting and corporate platforms.
Senior Full Stack Developer
Agricultural Decision Support Systems
Reusable advisory systems serving farmers and decision-makers across eight countries, with multilingual weather, crop and pest intelligence.
ImpactReduced advisory generation from 60 seconds to under 400ms through Redis and asynchronous processing.
Full Stack Developer
TekumoPRO
Production modules that streamline orders, dispatch and field operations with responsive, real-time operational dashboards.
ImpactOptimized APIs and database queries, and automated invoices and operational email workflows.
Frontend Developer
Flood Forecasting & Warning Centre
A flash-flood forecasting module and interactive geospatial dashboards supporting national disaster preparedness and response.
ImpactOptimized large-map rendering for faster, more usable flood-risk visualization.
Frontend Developer
Luminous Engineering
A responsive multi-page corporate website built with clean semantic markup, measurable analytics and search-friendly foundations.
ImpactImproved performance, implemented GA4 tracking and delivered a successful production deployment.
Frontend Developer
Synoit
A performance-focused company website with responsive landing pages, service journeys and reusable interface components.
ImpactDesigned, developed, optimized and deployed the complete web experience on Firebase Hosting.
04 Learning & research
Education
2025
Advanced Certificate for Management Professionals
IBA, University of Dhaka
2020
B.Sc. in Computer Science & Engineering
East West University · CGPA 3.50 / 4.00
Publication
IEEE CONIT · 2021Analyzing and Evaluating Boosting-Based CNN Algorithms for Image Classification
View publication05 Start a conversation
Have a meaningful problem to solve?
Let’s build something that works beautifully and keeps working.
I’m open to senior engineering roles, product collaborations and ambitious web platforms. Tell me what you’re working on.