5/5
"Swapan built a complete e-commerce solution for us with clean UI, secure authentication, and smooth payment flow. The admin side is easy to manage and performance is excellent."
S
Shahed
Easy Shop - E-commerce Platform
E-commerce Client
Available for freelance & full-time roles
Hi, my name is 👋
Swapan Saha.
I am a
I build scalable, production-ready web apps end to end — pixel-perfect frontends with React & Next.js, and secure backends with NestJS, Node.js & PostgreSQL. 4+ years shipping eCommerce, travel and real-time platforms.
- Years Experience
- 4+
- Years Experience
- Projects Shipped
- 10+
- Projects Shipped
- Concurrent Capacity
- 3K+
- Concurrent Capacity
- npm Packages
- 2
- npm Packages
const stack = ["MERN", "PERN"]
🚀 Full Stack Developer
About Me
Hello! I'm Swapan Kumar Saha, a Full Stack Developer from Dhaka with 4+ years of experience. My journey started with graphic design and simple HTML/CSS tweaks — today I architect complete products, from the database schema to the last pixel of the UI.
On the frontend I work with React, Next.js, TypeScript, Redux Toolkit, TanStack and Tailwind. On the backend I build secure REST/GraphQL APIs with NestJS, Express, Prisma, PostgreSQL and Redis, plus real-time features and payment gateways like SSLCommerz.
I also own the delivery — Docker, CI/CD, Nginx and VPS deployments, SEO and Core Web Vitals — and enjoy code reviews, mentoring, and turning complex requirements into simple, elegant solutions.
Frontend
React, Next.js, TypeScript, Tailwind — fast, accessible, pixel-perfect UIs.
Backend
NestJS, Express, Prisma, PostgreSQL, Redis — secure, scalable APIs.
DevOps
Docker, Nginx, CI/CD and load-balanced VPS deployments.
Clean Code
Typed, reviewed and maintainable code that scales with the team.
guest@swapan: ~/portfolio — zsh
online↑ it's interactive — try docker ps, pnpm install or sudo hire-me
My Journey
From graphic design to full-stack development, each step of my journey helped me build stronger product thinking, clean coding habits, and real-world delivery experience. You can explore my complete resume here:
Senior Full-Stack Developer
Mobile Buzz BD(Full-time)
Sep 2026 – Present
Dhaka, Bangladesh · On-site
- Architecting scalable, production-ready web apps with Next.js, NestJS, TypeScript, Prisma and PostgreSQL, focused on performance, security and maintainable architecture.
- Building eCommerce systems end to end — payment gateways, courier/logistics APIs, authentication, order management and third-party integrations.
- Implementing GA4, GTM, Google Ads conversion tracking, Meta Pixel & Conversions API, and optimising technical SEO, Core Web Vitals, SSR/SSG and caching.
Next.jsNestJSTypeScriptPrismaPostgreSQLREST APIGA4 / GTMMeta CAPISEO
Full Stack Developer
Freelance (Self-Employed)(Freelance)
Nov 2025 – Aug 2026
Dhaka, Bangladesh · Remote
- Designed, built and deployed multiple production-grade web apps end to end — Uranto, RoktoKhoj, Nec Travels, Muhammadaliholidays and more.
- Set up complete CI/CD pipelines and Docker-based deployments on managed VPS infrastructure with load-balanced backend services.
- Owned every stage from requirement analysis and technical planning to deployment and production support.
Next.jsReact.jsExpress.jsNestJSPostgreSQLRedisDockerCI/CDNginx
Senior Software Engineer
Travel Business Portal(Full-time)
Jun 2023 – Oct 2025
Dhaka, Bangladesh · On-site
- Led end-to-end development of a scalable B2B & B2C travel platform — flights, hotels, tour packages, visa, insurance and top-up services.
- Engineered secure SSLCommerz payment integration and real-time communication with WebSockets for live data sync.
- Architected a high-performance backend with Node.js, Express, TypeScript, PostgreSQL, MongoDB and Redis serving 2K–3K concurrent users.
- Conducted code reviews and mentored junior developers in an Agile team.
React.jsNext.jsNode.jsExpressTypeScriptPostgreSQLMongoDBRedisWebSockets
Junior Software Engineer
Travel Business Portal(Full-time)
Jan 2022 – Jun 2023
Dhaka, Bangladesh · On-site
- Built and maintained responsive UI components, improving stability and user experience across the portal.
- Debugged and resolved JavaScript issues for smoother frontend performance.
JavaScriptjQueryBootstrapPHPHTML5CSS3
Frontend Engineer
MerchBD(Part-time)
Sep 2021 – Jan 2022
Dhaka, Bangladesh · Remote
- Developed a responsive e-commerce frontend with Next.js and server-side rendering for better SEO and performance.
- Integrated backend APIs with native fetch for seamless data flow and smooth interactions.
Next.jsReact.jsReduxTailwind CSSREST API
Graphic Designer
ITDeal BD(Full-time)
Jun 2020 – Feb 2021
Rangpur, Bangladesh · On-site
- Designed logos, posters and banners, and contributed to basic UI/UX layouts for digital and print media with a focus on brand consistency.
PhotoshopIllustratorAdobe XDFigmaUI/UX
My Skills
I build polished digital experiences from frontend interactions to backend architecture, with a strong focus on performance, usability, and production-ready quality.
4+ Years ExperienceFull Stack FocusFrontend + Backend + DevOps
22 skills
Frontend Development
JavaScriptTypeScriptReact.jsNext.jsReduxRedux ToolkitZustandTailwind CSSShadcn UIRadix UITanStack QueryTanStack TableTanStack FormAnt DesignFramer MotionPWARechartsEmbla CarouselDnD KitZodHTML5CSS3
15 skills
Backend Development
Node.jsExpress.jsNest.jsREST APIGraphQLSocket.ioJWTBetter AuthNodemailerCloudinaryMulterSSLCommerzRupantornode-cronPHP
6 skills
AI Integration
OpenAI APIGemini APIOpenRouterHuggingfaceChatbot SystemsRAG Implementation
6 skills
AI Dev Tools
GitHub CopilotCursor AIOpenAI CodexAntigravityChatGPTOpenCode
9 skills
DevOps & Deployment
DockerNginxCI/CDLoad BalancingDigitalOceanHostinger VPSVercelNetlifyFirebase
5 skills
Database Management
MongoDBMySQLPostgreSQLPrisma ORMRedis
10 skills
Tools & Environment
GitGitHubnpm / yarnBunLinuxVS CodeJestMochatsuptsx
3 skills
Additional Skills
CC++Java
Featured Projects
roktokhoj.com
Featured Project
RoktoKhoj - Blood Donation Platform
RoktoKhoj is a full PERN-stack blood donation platform built to connect donors and recipients fast during emergencies. It includes intelligent donor search by blood group and location, request tracking, and reliable realtime notifications powered by Firebase. The platform is production-ready and deployed on a VPS for stable performance and full server control.
Next.js 16.2.1React 19TypeScriptTailwind CSS 4PostgreSQLExpress.js 5
uranto.com
Featured Project
Uranto - Modern E-commerce Platform
Uranto is a full-stack e-commerce platform designed to deliver a seamless and modern online shopping experience. The platform enables customers to browse products, manage their carts, and complete purchases through a fast and responsive interface. Built with Next.js 16 and React 19 on the frontend, it provides a smooth user experience enhanced by TanStack Query, Zustand, and modern UI components. The backend is powered by Express.js, PostgreSQL, and Prisma ORM, ensuring scalability, security, and high performance. Additional features include JWT-based authentication, Redis-powered caching and rate limiting, Cloudinary image management, advanced product and order management, analytics dashboards, and a comprehensive admin panel for efficient store operations.
Next.js 16React 19TypeScriptTailwind CSS 4Shadcn UITanStack Query
tbp-ota-three.vercel.app
Featured Project
TBP Online Travel Agency Portal
A scalable and user-friendly Online Travel Agency (OTA) web app focused on booking, search, and payment systems. Built with React, Redux, Vite, and Ant Design, it ensures high performance, responsiveness, and seamless user experience across devices.
ReactReduxViteAnt DesignNode.jsExpress.js
foodhub-client-eight.vercel.app
Featured Project
FoodHub - Multi-Role Meal Ordering Platform
FoodHub is a production-ready multi-role meal ordering platform where customers can browse meals and place orders, providers can add and manage meal listings, and admins can control platform categories and moderation. It is live in Bangladesh with SSLCommerz and Rupantor payment gateway integrations, and also supports Stripe for international payment practice and testing workflows.
Next.jsReactTypeScriptTailwind CSSNode.jsExpress.js
Open Source
I've published npm packages that are actively used by developers. These tools solve real problems I encountered while building production applications.
2 Published PackagesOpen Source
A TypeScript-compatible, framework-agnostic SSLCommerz payment gateway integration for Node.js, Express, and NestJS. Supports sandbox & live modes, full API coverage including payment initialization, validation, refund, and transaction queries.
npm install ss-sslcommerz- TypeScript & JavaScript support
- Node.js / Express / NestJS compatible
- Sandbox & Live modes
- Payment init, validate & refund
- Auto success/fail/cancel callbacks
Node.jsExpressNestJSTypeScriptPayment Gateway
A simple and powerful React hook for searching airport details by airport code or country name. Lightweight, debounced, and compatible with both JavaScript and TypeScript React projects. Perfect for travel and booking apps.
npm install search-airport-code- Search by airport code or country
- Built-in debounce support
- TypeScript & JavaScript ready
- Lightweight with zero bloat
- Simple React hook API
ReactTypeScriptHookTravelAirport
Client Reviews
Feedback from people I worked with on product builds, full-stack development, and deployment-ready web applications.
4/5
"For our travel portal, he delivered a fast and user-friendly booking experience. Search and dashboard workflows became much smoother, and the project quality was very professional."
T
Tanvir Ahmed
TBP Online Travel Agency Portal
Operations Manager
What's Next?
Let's Build Something Together
Have a project, a role, or just a question? Send me a message — it lands straight in my WhatsApp and I usually reply within a few hours.
+880 1517 850217
cseswaponsaha@gmail.com
Phone
+880 1408 263119
Location
Dhaka, Bangladesh · Open to remote