MY SERVICES

What I can build for you

From idea to production: modern web apps, secure APIs, Web3 platforms and payment-ready products.

01

Full-Stack Web Development

End-to-end web applications, from the interface to the API and database, built to scale and easy to maintain.

  • Next.js
  • React.js
  • TypeScript
  • Node.js
  • Express.js
  • PostgreSQL
02

Frontend & UI Development

Fast, responsive and pixel-perfect interfaces with clean state management and a great experience on every device.

  • React.js
  • Next.js
  • Redux Toolkit
  • Tailwind CSS
  • MUI
  • Ant Design
03

Backend & API Development

Secure, well-structured APIs with authentication, validation, caching and clear documentation.

  • Node.js
  • Express.js
  • REST API
  • tRPC
  • GraphQL
  • JWT
  • Zod
  • Redis
04

Database Design

Relational and document data models, migrations and efficient queries that keep applications fast as they grow.

  • PostgreSQL
  • Prisma
  • MongoDB
  • Mongoose
  • Redis
05

Web3 & dApp Development

Decentralized apps and DeFi platforms with wallet connections and secure on-chain / off-chain authentication.

  • dApps
  • DeFi
  • MetaMask
  • WalletConnect
  • Next.js
  • TypeScript
06

Payments & SaaS Platforms

Payment gateway integration, admin dashboards and subscription-ready SaaS products for real businesses.

  • Stripe
  • bKash
  • Nagad
  • Bank transfer
  • Dashboards

Have a project in mind?

Work With Me

ABOUT ME

Turning ideas into fast, scalable products

Hi! I'm Asaduzzaman, a Senior Software Developer and experienced Team Lead with 3+ years of professional experience.

I specialize in building scalable, high-performance web applications using JavaScript, TypeScript, Next.js, Node.js, Express.js, MongoDB, PostgreSQL, Prisma and Redis. I have strong experience with REST APIs, tRPC, JWT authentication, third-party API integrations and modern UI development with Tailwind CSS.

I have worked on e-commerce platforms, Web3 and DeFi projects, CEX platforms, dashboards and backend systems. I'm passionate about clean code, problem-solving and continuously learning new technologies.

  • Scalable web apps
  • REST & tRPC APIs
  • E-commerce
  • Web3 & DeFi
  • Dashboards
  • Clean code
Let's talk Resume

3+

Years of experience

Lead

Leading a dev team

Web3

DeFi, dApps & CEX

Remote

Open to work worldwide

  • Based in

    Chattogram, Bangladesh

  • Currently

    Senior Software Developer at Edulife Agency

  • Open to full-time, part-time, freelance & remote work

EXPERIENCE

  1. Senior Software Developer

    Edulife Agency · Full-time

    Jan 2024 – Present · 2 yrs 11 mos

    Chattogram, Bangladesh

    Joined as Front-End Developer · Promoted to Senior Software Developer

    Lead a small, high-performing team building decentralized applications (dApps), DeFi platforms and scalable web solutions. Work closely with product managers, UI/UX designers and blockchain engineers to turn ideas into secure, production-ready software for real-world fintech and education use cases.

    • Architected and developed full-stack applications using TypeScript, React.js / Next.js, Node.js, Express.js, MongoDB and PostgreSQL.
    • Managed wallet integrations (MetaMask, WalletConnect) and implemented secure on-chain / off-chain authentication systems.
    • Led sprint planning, code reviews and mentorship for the development team, promoting clean architecture and best practices.
    • Integrated multiple payment gateways, including bKash, Nagad and traditional bank transfers, ensuring secure and smooth transactions.
    TypeScriptNext.jsReact.jsNode.jsExpress.jsMongoDBPostgreSQLMetaMaskWalletConnectbKashNagad

  2. MERN Stack Developer

    DS Legends Pte. Ltd. · Internship

    Nov 2022 – Feb 2023 · 4 mos

    Singapore

    Completed a four-month internship as a MERN stack developer, working on full-stack features with MongoDB, Express.js, React.js and Node.js.

    MongoDBExpress.jsReact.jsNode.js

  3. MERN Stack Developer

    Self-employed · Freelance

    Jul 2021 – Nov 2022 · 1 yr 5 mos

    Remote

    Built full-stack web applications end to end, from UI to REST APIs and databases.

    • Built a tools manufacturer platform with client and admin dashboards, Stripe payments and JWT-based admin verification.
    • Delivered pixel-perfect front-end builds from design files using React and Tailwind CSS.
    React.jsNode.jsExpress.jsMongoDBFirebaseStripeJWTTailwind CSS

MY SKILLS

Technologies I work with

  • JavaScript
  • TypeScript
  • C
  • C++
  • HTML
  • CSS
  • React.js
  • Next.js
  • Redux
  • Redux Toolkit
  • Tailwind CSS
  • MUI
  • Bootstrap
  • Node.js
  • Express.js
  • NestJS
  • Socket.io
  • RREST API
  • tRPC
  • GraphQL
  • JWT
  • Zod
  • Redis
  • MongoDB
  • Mongoose
  • PostgreSQL
  • Prisma
  • Firebase
  • Docker
  • Linux
  • Git
  • GitHub
  • GitHub Actions
  • Nginx
  • Postman
  • VS Code
  • DdApps
  • DDeFi
  • MMetaMask
  • WalletConnect
  • Stripe
  • BbKash
  • NNagad

MY PROJECTS

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MORE PROJECTS

172+ public repositoriesOn GitHub since 2021 View GitHub profile

University Management System

Microservices

A microservice-based university management platform. An API gateway routes requests to separate auth, core and payment services, each with its own database, plus a Next.js admin frontend.

  • API gateway with Redis, rate limiting, Cloudinary file uploads and structured Winston logging
  • Auth service on MongoDB with JWT access/refresh tokens and bcrypt
  • Core service on PostgreSQL + Prisma; payment service with SSLCommerz
TypeScriptExpress.jsPostgreSQLPrismaMongoDBRedisZodNext.jsAnt DesignRedux Toolkit
Frontend API Gateway Auth Core Payment

GraphQL Blog API

Backend

A GraphQL API for a blogging platform with users, profiles and posts, including authentication and publish states.

  • Apollo Server schema with queries and mutations for posts, users and profiles
  • Relational data model on PostgreSQL with Prisma
  • JWT-based authentication with bcrypt password hashing
TypeScriptGraphQLApollo ServerPostgreSQLPrismaJWT
Code

PC Builder

Full-stack

A PC parts store where users browse components by category and build a custom PC after signing in.

  • Next.js with NextAuth sign-in via Google, GitHub or email and password
  • Protected PC builder flow with Redux Toolkit state
  • TypeScript Express + MongoDB backend
Next.jsNextAuthRedux ToolkitTailwind CSSNode.jsExpress.jsMongoDB
Client Server

Web Scraping Automation

Automation

A queue-based web scraping service that runs headless browser jobs in the background and analyses the scraped text.

  • Puppeteer scraping with ad blocking and proxy rotation
  • Background job processing with BullMQ and Redis
  • Sentiment analysis on collected content, exposed through an Express API
Node.jsPuppeteerBullMQRedisExpress.js
Code

CONTACT ME

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