AI Web App Development with Next.js & TypeScript by Rejuanul IslamAI Web App Development with Next.js & TypeScript by Rejuanul Islam
AI Web App Development with Next.js & TypeScriptRejuanul Islam
Cover image for AI Web App Development with Next.js & TypeScript
Ship a production AI product, not a demo.
Most AI builds stall after the prototype. The model works in a notebook, then breaks the moment real users, real data, and real billing show up. I build the whole thing: the interface people actually use, the backend that keeps it running, and the AI layer wired in properly.
What you get
A complete web application built with Next.js, TypeScript, and Tailwind
LLM integration (OpenAI, Claude, or Gemini) with streaming responses, retries, and sane error states
Auth, database, and file storage set up with Supabase or Postgres
Usage tracking and rate limiting so your token costs stay predictable
Deployed to Vercel with environment configs and a handover walkthrough
Good fit for
Founders validating an AI product with real users
Agencies who need an AI feature added to an existing platform
Teams with a working prototype that needs to become a real product
How it works
Short call to map the core user flow and pick the stack
Fixed scope and timeline, no hourly guessing
Staging link updated as I build, so you see progress weekly
Handover with full source, docs, and two weeks of post launch support
FAQs

Example work
BuyerLoop: AI That Qualifies Every Enquiry, 24/7
Starting at$1,500
Duration1 week
Tags
Next.js
Node.js
OpenAI
React
Supabase
Tailwind CSS
TypeScript
AI Engineer
Full Stack Developer
Service provided by
Rejuanul Islam proChattogram, Bangladesh
$1k+
Earned
4
Paid projects
5.00
Rating
43
Followers
AI Web App Development with Next.js & TypeScriptRejuanul Islam
Starting at$1,500
Duration1 week
Tags
Next.js
Node.js
OpenAI
React
Supabase
Tailwind CSS
TypeScript
AI Engineer
Full Stack Developer
Cover image for AI Web App Development with Next.js & TypeScript
Ship a production AI product, not a demo.
Most AI builds stall after the prototype. The model works in a notebook, then breaks the moment real users, real data, and real billing show up. I build the whole thing: the interface people actually use, the backend that keeps it running, and the AI layer wired in properly.
What you get
A complete web application built with Next.js, TypeScript, and Tailwind
LLM integration (OpenAI, Claude, or Gemini) with streaming responses, retries, and sane error states
Auth, database, and file storage set up with Supabase or Postgres
Usage tracking and rate limiting so your token costs stay predictable
Deployed to Vercel with environment configs and a handover walkthrough
Good fit for
Founders validating an AI product with real users
Agencies who need an AI feature added to an existing platform
Teams with a working prototype that needs to become a real product
How it works
Short call to map the core user flow and pick the stack
Fixed scope and timeline, no hourly guessing
Staging link updated as I build, so you see progress weekly
Handover with full source, docs, and two weeks of post launch support
FAQs

Example work
BuyerLoop: AI That Qualifies Every Enquiry, 24/7
$1,500