You will get AI Feature Retrofit for Existing React/Next.js App
Top Rated
Project details
I specialize in adding AI capabilities to existing products without disrupting what already works. As someone who has led frontend architecture on large multi-app platforms, I know how to integrate new features cleanly into an established codebase — respecting your existing patterns, state management, and design system rather than bolting something on. Common retrofits include AI search, in-app copilots, and content summarization.
Programming Languages
HTML & CSS, JavaScript, TypeScriptWhat's included $99
These options are included with the project scope.
$99
- Delivery Time 5 days
- Number of Revisions 0
- Number of Pages 1
37 reviews
(37)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
WJ
William J.
Nov 4, 2025
React Flow Builder
Tofiq is professional, clear with instructions, has good judgement, is knowledgeable. He actually is everything it says on his profile. No fluff. He gets stuff done.
WJ
William J.
Jul 8, 2025
Modify react flow webapp with conditional logic and routing
Always very professional and very competent. Gets the job done right.
WJ
William J.
Apr 10, 2025
Develop Interactive Flow Diagram Editor in React Flow JS
Did a great job. Very professional. Recommend.
KP
Kanishk P.
Apr 4, 2025
Senior Frontend Developer
Tofiq is a very knowledgeable frontend developer and has helped us simplify a lot of our frontend problems.
WJ
William J.
Mar 6, 2025
Next.JS AI Powered Writing Application - UI object development
Was able to troubleshoot really intricate and advanced issues in NextJS using niche libraries. Even without experience with the given JS library Tofiiq was able to get to the core of the issue super fast and resolve it. There was even a small bug after completing the project that got detected, and tofiq took the time on his own watch to go and solve that for us. He is very responsible and passionate about what he does. Definitely will be working again with him.
About Tofiq
Full stack developer | Next.js, React, Node JS
100%
Job Success
Udaipur, India - 11:40 pm local time
As a Full Stack Developer, I specialize in the full MERN stack (MongoDB, Express, React, Node.js) plus Next.js and TypeScript, building responsive frontends and connecting them to scalable Node.js/NestJS backends, REST APIs, GraphQL, and both SQL and NoSQL databases. As a Full Stack Engineer with 9 years of experience, I've led micro-frontend architecture (Webpack Module Federation) across 12+ apps and handled AWS infrastructure (Cognito, Lambda, S3/CloudFront, Auto Scaling) for enterprise clients.
WHY CLIENTS HIRE ME AS THEIR FULL STACK DEVELOPER:
✔ Senior Full Stack Developer execution — clean architecture, scalable systems, production-ready code
✔ Proven performance results: cut a client's bundle size from 18.9MB to 5.7MB and raised Lighthouse score from 47 to 96
✔ Micro-frontend delivery: 70% bundle reduction, 49% faster rendering, 66% faster delivery across a 12+ app suite
✔ Full ownership from database schema to deployed UI — no handoffs, no gaps
✔ AI integration (OpenAI, Claude, RAG, LLM agent workflows) built into full stack apps
✔ Top Rated on Upwork, 100% Job Success Score across 39+ jobs
CORE SERVICES AS A FULL STACK DEVELOPER
1. Full Stack Development (MERN & Next.js)
End-to-end builds: React/Next.js frontends wired to Node.js/Express/NestJS backends, MongoDB/MySQL/Supabase databases, and REST/GraphQL APIs — shipped as complete, deployable products.
2. Backend & Cloud Architecture
As a Full Stack Developer with cloud infrastructure experience, I design and deploy on AWS (Lambda, Cognito, S3/CloudFront, Auto Scaling), set up CI/CD, and architect systems for scale from day one.
3. Performance Optimization & Refactoring
I optimize slow full stack applications — cutting bundle sizes, resolving memory leaks, fixing N+1 queries, and refactoring legacy codebases into maintainable systems.
TECHNICAL STACK
• Frontend: React.js, Next.js, TypeScript, JavaScript (ES6+), Redux, React Query, HTML5, CSS3, Tailwind CSS
• Backend: Node.js, Express.js, NestJS, REST APIs, GraphQL/Relay
• Database: MongoDB, MySQL, Supabase, PostgreSQL
• Cloud & DevOps: AWS (Lambda, Cognito, S3/CloudFront, Auto Scaling), Docker, Webpack Module Federation
• AI & Tools: OpenAI API, Claude, Cursor, AI Agents, Git, GitHub, Postman, Vercel
WHAT I CAN BUILD FOR YOU
• Full Stack SaaS Platforms & Startup MVPs
• Micro-Frontend Architecture & Module Federation Systems
• Admin Dashboards & Client Portals
• AI-Powered Full Stack Web Applications
• Enterprise-Grade Backend Systems & API Architecture
Looking for a reliable Full Stack Developer, MERN Stack Developer, or Full Stack Engineer to build, launch, or scale your product?
👉 Click "Invite" or send a message to get started.
--------------------------------------------------
KEYWORDS / SEARCH INDEX
Full Stack Developer, Full Stack Engineer, MERN Stack Developer, Node.js Developer, React Full Stack Developer, Next.js Full Stack Developer, Full Stack Web Developer, JavaScript Full Stack Developer, TypeScript Developer, Backend Developer, API Developer, Cloud Developer, AWS Developer, AI Full Stack Developer, Web Application Developer.
Steps for completing your project
After purchasing the project, send requirements so Tofiq can start the project.
Delivery time starts when Tofiq receives requirements from you.
Tofiq works on your project following the steps below.
Revisions may occur after the delivery date.
Review your existing codebase, architecture, and constraints
Scope the specific AI feature(s) to add and how they'll integrate