Read Article
Backend
GraphQL vs REST: When to Actually Use Each
A practical comparison of GraphQL and REST based on real production tradeoffs — not hype — covering caching, over-fetching, and team velocity.
July 8, 20259 min read
Available for new opportunities
Hello, I'm
Md. Hasan Mia
Full-Stack Developer
0+
Completed Projects
0+
Years of Experience
0+
Awards Winning
RESUME
Work Experience & Education
Experience
Nov 2024 – Jun 2026
Backend Developer
Roshoon
- Designed the database and backend architecture for a multi-vendor food delivery platform.
- Built RESTful APIs for chef onboarding, orders, menus, and ratings.
- Integrated secure payment gateways with role-based access control (RBAC).
- Built real-time order tracking and notification features.
- Built a mass-email campaign tool for admins to reach thousands of users.
- Collaborated with the frontend team on API integration and dashboards.
- Built and published the Android app (Capacitor) to the Google Play Store.
Feb 2024 – Jan 2025
Full-Stack Developer
Shothik AI
- Architected project structure using NestJS, Express, WebRTC, Socket.IO, and Next.js.
- Led backend development and feature enhancements for Shothik.ai.
- Built an AI bot that joins meetings and generates meeting minutes.
- Built a savings-account verification bot for Bank Asia.
- Built an in-person verification tool via video calling.
- Built an AI model training pipeline for Chaldal's service centers.
- Built a multi-vendor platform with a top-5 referral bonus system.
- Note: Final 3 months (Nov 2024 – Jan 2025) were part-time, worked in parallel with the Roshoon role.
Nov 2023 – Jan 2024
Associate Full-Stack Developer
AppifyLab
- Served as a key frontend developer in a full-stack team.
- Built features and fixed complex bugs for ezycourse.com, a SaaS platform.
- Worked with Next.js, Redux, and AdonisJS.
Nov 2022 – Oct 2023
Junior Full-Stack Developer
Hoolo Technology
- Built frontend for Hoolo.live, a hybrid social media and e-commerce platform.
- Built core functionality using React and Redux.
- Integrated WebRTC and video SDKs for an online live-classes platform.
Sep 2022 – Dec 2022
Web Developer
ZOOM IT
- Built custom e-commerce platforms for clients.
- Developed WordPress themes for online news portals.
- Consistently delivered high-quality, user-centric web experiences.
Nov 2019 – Dec 2021
Web Developer
KIDARKAR IT
- Designed responsive WordPress websites for client requirements.
- Configured WooCommerce stores with custom functionality.
Education
2016
HND — Higher National Diploma
College of Aviation Technology
Higher National Diploma focused on computing and software development fundamentals.
2012
HSC — Higher Secondary Certificate
Shaheed Shahed Hazari College
Higher Secondary education with a focus on science and mathematics.
2010
SSC — Secondary School Certificate
B.S. Bisweswari High School
Secondary school education, building the foundation for a career in software.
Certifications
CSE Fundamentals with Phitron
Programming Hero · 2024
Completed CSE fundamentals training covering core computer science and programming concepts.
Complete Web Development Course
Programming Hero · Jhankar Mahbub · 2022
Completed the complete web development course covering full-stack development with modern technologies.
Web Design & Mobile Game App Development
ICT Division · 2018 – 2019
Trained in web design and mobile game & application development through the ICT Division program.
SKILLS
Technology Stack
Frontend
ReactNext.jsTypeScriptJavaScript (ES6)ReduxTanStack QueryZustandTailwind CSSMaterial UIAnt DesignRSuiteBootstrapjQuery
Backend
Node.jsNestJSExpressSocket.IOBullMQPuppeteerStripeGraphQL
Mobile
React NativeExpoCapacitor
Database
PostgreSQLPrismaMySQLSequelizeMongoDBMongooseRedisFirebase
DevOps & Cloud
DockerPM2AWSGCSAzureFFmpeg
CMS & Familiar
WordPressPHPLaravelPythonAdonisJSSupertest
Bangla100%
English75%
SERVICES
What Services I Provide?
Web
Web Development
Crafting responsive, pixel-perfect web applications with React, Next.js and modern TypeScript from concept to launch.
Backend
Backend & API
Designing robust REST & real-time APIs, data pipelines and secure payment integrations with Node.js, NestJS and PostgreSQL.
Mobile
Mobile Apps
Shipping cross-platform mobile experiences with React Native, Expo and Capacitor backed by a scalable API layer.
DevOps
Cloud & DevOps
Containerizing and deploying resilient services on Docker, AWS and GCS with CI/CD pipelines that ship with confidence.
AI
AI & Automation
Building AI bots, meeting-minutes generators and model-training pipelines that automate repetitive business workflows.
Realtime
Real-time & Video
Live classes, video verification and real-time features with WebRTC, Socket.IO and low-latency streaming infrastructure.
PRICING
My Rates
Hourly
per hour
$4
- Bug fixes & performance tuning
- API & feature tweaks
- Quick consultations
- Flexible, pay-as-you-go
Daily
per day
$20
- Full feature, API & UI development
- Backend architecture & databases
- Payment & real-time integration
- Daily progress updates
Weekly
per week
$120
- End-to-end full-stack delivery
- Multi-vendor & scalable systems
- Deployment, CI/CD & DevOps
- 1 week of support included
PORTFOLIO
Explore My Work
View Project
Roshoon
Multi-vendor homemade food marketplace connecting customers with local chefs. Chef scheduling, cart, secure checkout, and real-time order tracking with customer, chef, and admin dashboards.
Next.jsPostgreSQLStripe
View Project
Join BGB
The official BGB job application platform. BGB can publish, update, and delete job postings, while applicants create accounts via mobile and download admit cards.
ReactReduxTailwind
View Project
Live TV
Live TV & Sports streaming platform with real-time broadcasting and live sports coverage.
Next.jsExpressMySQL
View Project
Online Meeting Platform
Real-time video conferencing platform supporting one-to-one calls, group meetings, and live broadcasting. Features Firebase authentication, in-call chat with emoji support, screen sharing, session recording with auto-download, and a dedicated live chat room with real-time messaging.
ReactJSFirebase AuthWebRTC
View Project
Tawseer
Multi-tenant SaaS platform with RBAC, shop and service management for vendors. Real-time booking and waitlist with priority queue and auto-promotion. Subscription billing, payments, checkout, coupons, and invoicing, plus audit logging and multi-channel notifications.
NestJSPrismaPostgreSQL
View Project
Beyond Tax Consultants
Tax and accounting platform with service selection and client onboarding, automated consultation scheduling with Google Meet links, and a secure portal for uploading financial and tax documents.
ExpressMySQLSequelize
BLOG
Latest Articles
Read Article
Backend
Implementing Rate Limiting with Redis and Sliding Windows
Fixed windows let bursts slip through. Here's how a sliding-window-log algorithm backed by Redis sorted sets gives accurate, fair rate limiting.
June 25, 20257 min read
Read Article
Frontend
TypeScript Generics I Actually Use in Real Projects
Beyond textbook examples — practical generic patterns for API clients, form state, and reusable hooks that hold up in production codebases.
June 3, 20256 min read
Read Article
DevOps
Migrating a Monolith to Microservices: What I'd Do Differently
Lessons from a year-long monolith-to-microservices migration — the parts that paid off and the mistakes that cost us months.
May 14, 202510 min read
Read Article
Backend
Debugging Memory Leaks in Long-Running Node.js Processes
How I tracked down a slow memory leak in a Node.js worker process using heap snapshots, Chrome DevTools, and clinic.js.
April 2, 20258 min read
Read Article
Frontend
Building a Design System with Tailwind and CVA
How class-variance-authority and Tailwind CSS helped us build a consistent, type-safe component library across five product teams.
March 8, 20257 min read
TESTIMONIALS
What People Say
I highly recommend working with Hasan. The product quality is outstanding, exceeding my expectations every time. Professionalism and communication were top-notch from start to finish.
B
Bryn Hooper
CEO, Abc.inc
Hasan delivered a robust backend that scaled beautifully under real load. Pricing was fair and transparent — definitely value for money, and the support afterward was excellent.
C
Caspar Baldwin
CTO, DevStudio
A rare blend of strong engineering and design sense. He translated vague requirements into a polished, fast product and kept us in the loop the entire time.
C
Clayton Ayers
Founder, Launchpad