Available for work

4+ yrs

Shipping production apps

Full-Stack Software Engineer

Scalable web apps, built end‑to‑end.

I'm Md Hasibuzzaman. I design and build secure, high-performance products with React, Next.js, Node.js and Golang, from REST APIs and microservices to Docker, CI/CD and AWS deployments.

Let's talk on WhatsApp Download Resume

Jashore, Khulna, Bangladesh

Technologies I Work With

React
Next.js
TypeScript
Golang
Node.js
NestJS
Express
PostgreSQL
MongoDB
Redis
Prisma
Kafka
Docker
Nginx
Tailwind
Redux
TanStack
Stripe
Supabase
Claude AI

Years Experience: 4+
Production Projects: 5+
Faster Search Delivered: 60%
Remote Intl. Companies: 2

Portfolio

My Recent Work

Production SaaS, open-source platforms and full-stack systems I've architected and shipped end-to-end.

01Production · Next.js + AI Automation

Personal Branding & Automated YouTube-to-Blog Platform

An SEO-optimized, fully responsive Next.js site that ranks top on Google for “Chris Gray Entrepreneur”, powered by an automated content and newsletter pipeline.

Node.js + OpenAI pipeline turns YouTube transcripts into long-form blog posts
Newsletter automation with Google Sheets, Zapier & Beehiiv
Hostinger VPS, Nginx reverse proxy, CI/CD and production monitoring

Next.js
Node.js
MongoDB
OpenAI
Beehiiv
CI/CD

View Live Site

yochrisgray.com

YoChrisGray Home page, full-length screenshot

Hover to scroll ↓

02SaaS · RAG + Claude AI

Header AI – YouTube Winning Headline Generation SaaS

A production-grade SaaS that generates high-converting YouTube headlines using a custom Retrieval-Augmented Generation pipeline with vector search.

RAG architecture on Supabase pgvector with Claude AI
Puppeteer ingestion scrapes weekly winning headlines into the vector DB
JWT auth, Stripe subscriptions and role-based admin controls

React
TanStack Query
Supabase
Claude AI
Stripe
Puppeteer

View Live Site

headline-ai.netlify.app

03Open Source · Medical College Initiative

BloodLink – Blood Donation & Emergency Blood Bank System

An open-source platform for donor registration, emergency blood requests and administrative workflows, built end-to-end for a medical college blood bank in Bangladesh.

Golang (Gorilla Mux) API with JWT + role-based authorization
PostgreSQL schema, Swagger docs, Docker and CI/CD pipelines
React + TypeScript frontend with multilingual support via i18next

Golang
PostgreSQL
React
TypeScript
Docker
Swagger

View Live Site Source Code

blood-link-bd.netlify.app

04Thesis · Microservices Architecture

ShopBizz – Multi-Vendor E-Commerce with ML Recommendations

A microservices-based multi-vendor marketplace addressing scalability, seller autonomy and intelligent product discovery in distributed commerce.

Independently deployable Express services with Kafka event streaming
TensorFlow.js recommendation engine with real-time inference
OTP + JWT auth, Socket.io buyer–seller chat, Redis caching

Next.js
Microservices
Kafka
Redis
Prisma
TensorFlow.js

Source Code

shopbizz — microservices

05Full-Stack · Marketplace

HouseBiz – Real Estate Property Management System

A real estate platform for listing, searching, buying, selling and renting properties across owners, agents and customers.

Next.js + Redux frontend with advanced property filtering
Cookie-based auth tokens with role-based access control
REST APIs for listings, transactions and admin dashboards

Next.js
Redux
NextAuth.js
Express
MongoDB
shadcn/ui

View Live Site Source Code

housebiz.vercel.app

View More on GitHub

Experience

Where I've Made an Impact

I believe every product deserves reliable engineering and honest collaboration. That's why I care about every step of the work, from architecture to deployment.

TainoSystems Inc.

Full-time · Canada (Remote)

Full Stack Software Engineer

May 2024 – Present

Built secure, scalable apps for Forex exchange, medical sales & share distribution and healthcare management with React, Redux, TypeScript and Golang.
Optimized search performance by 60% while handling complex data.
Integrated a scalable e-commerce solution with secure payments into a clinical lab test ordering system.
Maintained a legacy healthcare application (built in 2008), shipping report generation within ES5 limits.

React
Golang
PostgreSQL
Docker
AWS
Stripe

Supportguru.uk

Full-time · India (Remote)

Full-stack Software Engineer

Apr 2022 – Jan 2023

Developed a full-stack car repair management solution covering issue tracking, service centers and mechanic tracking.
Built a scalable system with React.js, Node.js and Mongoose.
Played a key role in securing funding by delivering a seamless frontend and backend experience.

React
Redux Toolkit
Node.js
MongoDB
Razorpay

BloodLink Initiative

Medical College Blood Bank · Bangladesh

Open Source Contributor

End-to-End Contributor

Engineered a Golang backend with JWT auth, structured error logging and Swagger documentation.
Designed PostgreSQL schema and REST APIs with Dockerized setup and CI/CD.
Built a responsive, multilingual React + TypeScript frontend.

Golang
PostgreSQL
React
i18next

Turn your idea into a scalable product with an engineering partner who truly owns the outcome.

Your product can't afford to be fragile. It should be fast, secure and ready to grow. I help startups and teams ship full-stack applications that handle real users, real payments and real data, from the first API to production on AWS.

Get a Free Consultation

Your product is built to scale and convert.

Performance: Optimized queries, caching with Redis and lean frontends. Search delivered 60% faster in production.
Security: JWT, OTP and role-based access control, secure payment flows with Stripe & Razorpay.
Scalability: Microservices, Kafka event streaming and clean REST APIs designed to grow with your users.
DevOps & Cloud: Docker, CI/CD, Nginx and AWS (EC2, S3) deployments with monitoring and logging.
AI Integrations: RAG systems with vector search, Claude AI and automated content pipelines.
Clean UI: Responsive React & Next.js interfaces with Tailwind, shadcn/ui and TanStack Query.

About Me

Engineer, Problem Solver, Builder

Md Hasibuzzaman

Full-Stack Software Engineer

Full Stack Developer with 4+ years of experience building scalable web applications using React, Next.js, Node.js, and Golang. Strong background in REST APIs, microservices, Docker, CI/CD, and cloud deployment (AWS).

I've worked remotely with teams in Canada and India on fintech, healthcare and e-commerce products, and I enjoy owning features end-to-end, from database schema and APIs to polished, responsive interfaces and reliable deployments.

Skills

Languages: JavaScriptTypeScriptGolangPythonJavaC++
Frontend: ReactNext.jsRedux ToolkitTanStack QueryTailwindshadcn/ui
Backend: Node.jsExpressNestJSGinChiGorilla MuxKafka
Data: PostgreSQLMySQLMongoDBRedisPrismaMongooseGORM
DevOps: DockerCI/CDNginxAWS EC2AWS S3PostmanSwagger

Education

2021 – 2025
BSc in Computer Science and Engineering
Northern University of Business and Technology, Khulna
CGPA 3.446
2020
H.S.C
Jashore Board
GPA 4.08
2017
S.S.C
Jashore Board
GPA 4.73

Certifications

Full Stack Web Development
Programming Hero · 2022
Think in a Redux Way
Learn With Sumit · 2023
Backend with Node & Mongoose
ChaiCode · 2024

Let's work together

Have a project in mind? Let's build it the right way.

Open to full-time remote roles, freelance projects and long-term collaborations. Tell me about your idea and I'll get back to you within 24 hours.

Send me an email