Who is Habibur Rahman?

Habibur Rahman is a product-driven full-stack developer based in Dhaka, Bangladesh. He specializes in frontend engineering and user experience, building production-ready web applications with Next.js, React, and TypeScript. He is Founder & CEO of Qubetix — a digital studio shipping brand systems, web platforms, and AI-native products — and Founder of biofideX, an educational platform focused on bioscience learning.

What services does Habibur Rahman offer?

Habibur Rahman offers three core services tailored to 2026 web standards: (1) AI-Native Product Development — LLM integration, RAG systems, semantic search, AI agents, chat interfaces, and streaming UIs designed to feel native to the product; (2) SaaS Platforms & Web Apps — multi-tenant SaaS architecture, auth, billing & subscriptions, real-time dashboards, and type-safe end-to-end stacks; and (3) High-Performance Web Experiences — conversion-focused landing pages, motion design, Core Web Vitals, technical SEO, and inclusive accessibility.

What technologies does Habibur Rahman use?

Habibur Rahman's core technology stack includes Next.js, React 19, TypeScript, Tailwind CSS, Framer Motion, Supabase, PostgreSQL, Firebase, Stripe, NextAuth.js, Redux Toolkit, Zustand, and React Query. He deploys applications on Vercel and Cloudflare, and uses GitHub Actions for CI/CD pipelines.

How can I hire Habibur Rahman as a freelance developer?

You can hire Habibur Rahman through his Upwork profile (upwork.com/freelancers/~018853a57064b0cb97) or contact him directly at hrsshainik@gmail.com. He is open to new opportunities, freelance projects, and long-term collaborations worldwide.

biofideX (biofidex.com) is an educational platform founded by Habibur Rahman, focused on bioscience learning. It offers quizzes, articles, and structured courses across life-science disciplines, designed to support effective, evidence-based learning for students and professionals.

Qubetix (qubetix.co) is the digital studio founded and led by Habibur Rahman. It partners with ambitious teams worldwide to design and build brand systems, marketing sites, web platforms, and AI-native products end-to-end — from first concept through to launch and beyond.

Where is Habibur Rahman located and does he work with international clients?

Habibur Rahman is based in Dhaka, Bangladesh, and actively works with international clients worldwide via Upwork and direct engagements. He has delivered projects for clients across different time zones, building SaaS platforms, e-commerce solutions, and web applications.

Habibur Rahman — Full-Stack Developer | Next.js, React & TypeScript Expert

About

I am a product-driven full-stack developer based in Dhaka, Bangladesh, with a strong focus on frontend engineering and user experience. I transitioned from Biochemistry to software development out of a genuine passion for building thoughtful, well-designed digital products.

I build production-ready web applications, bridging design and engineering to transform ideas into dependable, user-focused products. I work with international clients through Qubetix — my digital studio — and on Upwork, delivering software that is trusted and used in real-world environments.

My academic background in Biochemistry & Molecular Biology has shaped a structured and analytical approach to problem-solving, allowing me to design software systems with clarity, precision, and long-term maintainability in mind.

What truly excites me is the chance to merge my background in biochemistry with software craft. Through biofideX, I'm building an educational platform that turns life-science concepts into thoughtful, interactive learning experiences — a project that lives at the exact intersection of the two disciplines I care about most.

Experience

2026 — Present

Founder & CEO · Qubetix

Leading a digital studio that designs and builds brand systems, websites, apps, AI products, and marketing programs end-to-end for ambitious teams worldwide.

Digital Studio
Brand & Product
AI Solutions
Team Leadership

2023 — Present

Full-Stack Developer · Upwork

Building scalable web applications for international clients. Projects range from SaaS platforms to e-commerce solutions, focusing on clean architecture, performance optimization, and exceptional user experiences.

SaaS Development
E-Commerce
Frontend Engineering
API Integration

2019 — Present

Founder & CEO · biofideX

Building an educational platform focused on bioscience education. Leading product development, technical architecture, and user experience design for a comprehensive learning ecosystem.

EdTech Platform
Product Strategy
Team Leadership
Content Development

Education

Jagannath University

Biochemistry & Molecular Biology

BSc

Built a strong foundation in analytical thinking, research methodology, and scientific problem-solving that now informs my systematic approach to software engineering and product development.

Projects

biofideX

EdTech · Bioscience

A modern bioscience learning platform where students and professionals explore quizzes, articles, and courses across life science disciplines. Designed to feel clear and accessible, with interactive assessments and structured content that support evidence-based learning.

Next.js
TypeScript
Supabase
Education Platform

Prottoy

EdTech · Mobile App

A focused academic quiz app for HSC students and admission-test candidates in Bangladesh. Short 10-minute sessions with instant explanations and analytics that surface weak chapters — offline-first, so studying never depends on connectivity.

Flutter
Supabase
Next.js
Mobile App

App Store Google Play

Luna Corporate

Corporate · Brand Portfolio

A bilingual corporate site for a Polish consumer-goods manufacturer, presenting a five-brand portfolio, European distribution network, and trade-show coverage. Engineered on Qwik for near-zero blocking JavaScript and instant interactivity.

Qwik
Tailwind CSS
Cloudflare
Bilingual Site

Al-Bayt Elegance

E-Commerce · Fashion

An e-commerce platform for Islamic modest fashion, built around a calm, considered shopping experience — secure Stripe payments, real-time inventory across regions, and a storefront that puts the garment and the customer at the centre of every page.

React
Firebase
Stripe

Noor Jabal Cleaning

Service · Local Business

A professional service website for a Dubai-based cleaning company, showcasing residential and commercial offerings with a clear information architecture, locally-tuned copy, and a frictionless inquiry flow that turns curious visitors into booked appointments.

Next.js
Service Website
Dubai Business

Services

AI-Native Product Development

Bringing language models, agents, and AI-powered workflows into production-grade web apps — designed to feel native to the product, not bolted on.

LLM integration & prompt engineering
RAG systems & semantic search
AI agents & chat interfaces
Streaming UIs & real-time inference

SaaS Platforms & Web Apps

Multi-tenant SaaS products, internal tools, and dashboards engineered for scale — with type-safe APIs, real-time data, and frictionless billing baked in.

Multi-tenant SaaS architecture
Auth, billing & subscriptions
Real-time dashboards & analytics
Type-safe end-to-end stacks

High-Performance Web Experiences

Marketing sites, landing pages, and brand-driven web experiences built for speed, conversion, and motion — passing Core Web Vitals with room to spare.

Conversion-focused landing pages
Motion design & micro-interactions
Core Web Vitals & technical SEO
Accessibility & inclusive UX

Tech Stack

Frontend Frameworks

Next.js 16
React 19
TypeScript
Vite

State Management

Redux Toolkit
Zustand
React Query
Context API

Styling & Animation

Tailwind CSS v4
Framer Motion
Shadcn/ui
Radix UI

Backend & Database

Supabase
Firebase
PostgreSQL
Prisma ORM
REST APIs

Payments & Auth

Stripe
NextAuth.js
Supabase Auth
OAuth

Deployment

Vercel
Cloudflare
GitHub Actions

What's Next?

Get In Touch

I'm currently open to new opportunities and interesting projects. Whether you need a complete platform or want to optimize an existing application, let's discuss how I can help.

hrsshainik@gmail.com