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Rejuanul IslamFull Stack Developer / AI Engineer

I build thoughtful digital products where software, AI and interface design meet.

I'm a full-stack developer and AI engineer based in Chattogram, Bangladesh. I design and ship web products end to end: the interface people touch, the backend behind it, and the AI agents and automations that make it useful.

Most of my work is in Next.js, React and TypeScript, with Node.js and PostgreSQL underneath and LLMs where they earn their place. I care about interfaces that feel as good as they perform, and about code that is still easy to change a year later.

I work with startups and product teams through Fiverr, Upwork and Contra, and I'm open to a full-time role at a design-forward team.

Work

Production projects for clients and myself, and a playground of experiments that didn't need to become products.

About

I'm a self-taught developer who started by turning Figma files into pixel-accurate front ends, then kept following the work deeper: into React and Next.js, into the backend, and now into products where a language model is part of the interface.

My philosophy is simple. Ship things that are fast and reliable first, then make them feel good. Keep the architecture boring so the product can be interesting. Write the code you would want to inherit.

Right now I'm most interested in agentic systems that do real work inside a product, voice interfaces, and the craft of making AI features feel calm instead of chaotic.

Based in
Chattogram, Bangladesh
Experience
4+ years, 150+ shipped projects for clients in the US, UK and Europe
Working through
Fiverr, Upwork and Contra, or directly
Currently
Building AI agents into real products and open to full-time roles
Availability
Available for selected projects

Working with

Frontend

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • Motion
  • Accessibility

Backend

  • Node.js
  • PostgreSQL
  • Supabase
  • REST and streaming APIs
  • Authentication

AI

  • LLM integration
  • AI agents
  • RAG
  • Voice AI
  • Automation workflows

Tools

  • Git and GitHub
  • Vercel
  • Figma
  • Claude Code
  • Resend

Have a product worth building?

I take on a small number of projects at a time so each one gets real attention. Book a call and tell me what you're making, or send an email.

rejuanul@rejuandeveloper.com Chattogram, Local time in Chattogram: