You will get RAG & AI Feature Integration | Next.js, OpenAI API & Vector Search
Top Rated
Project details
AI is transforming SaaS – but integrating it right is hard. Generic ChatGPT wrappers don't cut it. I build production‑ready AI features that actually solve problems.
𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐠𝐞𝐭:
• Custom chatbots trained on YOUR data – docs, knowledge base, tickets
• RAG pipelines with vector databases – accurate, source-backed answers
• Lead scoring models that qualify prospects
• Multi-agent systems for complex workflows (Advanced)
• Cost optimization – caching, token limits, monitoring
• Clean API endpoints that plug into your existing app
𝐖𝐡𝐲 𝐦𝐞:
• 60+ apps delivered – AI for SaaS, e‑commerce, enterprise
• Deep AI stack – OpenAI, LangChain, Claude, Gemini
• Vector DB expert – Pinecone, Chroma, Supabase pgvector
• Cost control specialist – no surprise bills
• Full-stack dev – Next.js, Node.js, Python, any backend
• 100% Job Success, top-rated plus
Need a support chatbot, RAG system, or lead scoring? I deliver AI that drives revenue – not just demos.
No hallucinations. No surprise costs. Just AI that works.
𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐠𝐞𝐭:
• Custom chatbots trained on YOUR data – docs, knowledge base, tickets
• RAG pipelines with vector databases – accurate, source-backed answers
• Lead scoring models that qualify prospects
• Multi-agent systems for complex workflows (Advanced)
• Cost optimization – caching, token limits, monitoring
• Clean API endpoints that plug into your existing app
𝐖𝐡𝐲 𝐦𝐞:
• 60+ apps delivered – AI for SaaS, e‑commerce, enterprise
• Deep AI stack – OpenAI, LangChain, Claude, Gemini
• Vector DB expert – Pinecone, Chroma, Supabase pgvector
• Cost control specialist – no surprise bills
• Full-stack dev – Next.js, Node.js, Python, any backend
• 100% Job Success, top-rated plus
Need a support chatbot, RAG system, or lead scoring? I deliver AI that drives revenue – not just demos.
No hallucinations. No surprise costs. Just AI that works.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$300
|
Advanced
$450
|
|---|---|---|---|
| Delivery Time | 3 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Frequently asked questions
6 reviews
(6)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
DA
Dee A.
Aug 24, 2026
AI SaaS Developer UI Frontend Design Architecture Expert | ORIINU
ORIINU's frontend is now fully live and it looks and works exactly how we imagined. Faiq built everything, Next.js UI architecture, real-time SSE streaming, Stripe subscription flows, pixel-perfect Tailwind CSS components, TypeScript throughout. Multiple hours, always on time, always proactive. He treated our product like his own. Best Next.js frontend developer and SaaS UI architect we've worked with.
DA
Dee A.
Aug 24, 2026
Next.js Frontend & Backend SaaS Developer | ORIINU
ORIINU is now fully shipped and Faiq delivered everything, Next.js frontend, NestJS backend, GraphQL APIs, RAG-based AI, Stripe billing, multi-tenant architecture, all production-ready. Multiple hours, zero hand-holding, always proactive. The best full-stack Next.js and NestJS developer we've worked with. If you're building a SaaS product, hire him.
LL
Lillian L.
Jul 28, 2026
Performance Testing & Optimization for Next.js + Sanity + Odoo College Website (22 Pages)
Faiq was an extremely hardworking, quick on his feet, and consistently dependable. His patience and positive energy made working with him a truly enjoyable experience. His commitment to providing quality work makes him an excellent candidate for a long-term partnership. I'd gladly work with him again and recommend him without hesitation.
VR
Vineeth R.
Jan 23, 2026
Posthog & META tracking
MS
Muhammad S.
Dec 6, 2025
Full-Stack React.js/Next.js & NestJS Expert Needed to Debug and Optimize Production App
Faiq quickly identified and resolved our critical issues and made the entire system fully production-ready. He not only delivered clean, scalable fixes but also documented every improvement clearly at submission. Highly reliable, highly skilled — truly one of the best developers I’ve worked with.
About Faiq
Next.js Developer | React, TypeScript, NestJS & Full-Stack SaaS
100%
Job Success
Lahore, Pakistan - 3:58 pm local time
Give me your Next.js + NestJS project or SaaS idea and I'll build it so it works in production, not just in demo. That's my promise.
If you send me an invitation or message, I'll reply within 4 hours with a clear breakdown of how I'd approach your specific problem.
🤝 A little more about me:
I help startup founders and SaaS teams ship full-stack web applications that don't break when real users show up. Next.js frontends, NestJS backends, GraphQL and REST APIs, real-time WebSocket features, RAG-powered AI, and Stripe billing from day one.
If your backend and frontend don't quite talk to each other the way they should, or your app works in staging and falls apart in production, that's exactly the gap I close.
📈 Previous Reviews:
⭐ "Faiq quickly identified and resolved our critical issues and made the entire system fully production-ready. He not only delivered clean, scalable fixes but also documented every improvement clearly at submission. Highly reliable, highly skilled, truly one of the best developers I've worked with."
⭐ "Faiq did an excellent job turning my idea into reality. He is an outstanding Next.js Developer, React Developer, and design & architecture expert who knows how to build scalable, modern, and high-performance applications."
🔹 What I Usually Help Clients With:
✅ Next.js SaaS platforms : App Router, SSR, SSG, performance optimization
✅ NestJS backend architecture : REST APIs, GraphQL, gRPC, microservices
✅ Real-time systems : WebSocket, SocketIO, live dashboards, chat
✅ AI & RAG integration : document-grounded chat, vector search, OpenAI/Claude APIs
✅ Full-stack SaaS MVPs : multi-tenant architecture, Stripe billing, auth
✅ Debugging and production issue resolution : I fix what's broken fast
✅ Performance optimization : Core Web Vitals, Lighthouse, load time
🔹 Proof of Delivery:
✔️ ORIINU : built a live RAG-based AI SaaS platform from scratch: Next.js frontend, Python backend with FastAPI, Pinecone vector search, OpenAI generation, Stripe billing, multi-tenant architecture, public launch
✔️ Next.js Performance : took a 22-page college website from Lighthouse sub-40 to 90+ across all pages; client reported direct revenue impact
✔️ Production Debug : identified and resolved critical issues in a live Next.js/NestJS app within hours; documented every fix for the client's team
🔹 What You Can Expect Working With Me:
🎯 A response within 4 hours, always
🎯 Clean, documented, maintainable code, not a black box you can't touch after I leave
🎯 Honest scope assessment : I'll tell you upfront if something will take longer than expected
🎯 Production mindset : I build for real traffic, not just demos
🎯 Full ownership : frontend, backend, database, deployment, all of it
🔹 Tech Stack:
Frontend: Next.js · React · TypeScript · Tailwind CSS
Backend: NestJS · Node.js · GraphQL · REST API · gRPC · WebSocket
Databases: PostgreSQL · MongoDB · Redis · Supabase
AI: RAG · Vector Search · OpenAI API · Claude API
SaaS: Stripe · Multi-Tenant Architecture · Auth · MVP Development
🔹 Industries I Work With:
✅ SaaS Startups
✅ AI-Powered Products
✅ Healthcare Platforms
✅ FinTech Platforms
✅ E-commerce & Marketplaces
✅ Internal Business Tools
✅ EdTech Platforms
Tell me your stack and where it's stuck. I'll tell you exactly how I'd fix it, before you spend a single Connect.
🔍 Keywords: Next.js Developer · NestJS Developer · Full-Stack Developer · React Developer · Node.js Developer · TypeScript Developer · GraphQL Developer · REST API Developer · WebSocket Developer · SocketIO Developer · RAG Developer · Retrieval Augmented Generation · AI Integration Developer · SaaS Developer · Multi-Tenant SaaS Architecture · Stripe Integration Developer · PostgreSQL Developer · MongoDB Developer · Redis Developer · Microservices Developer · gRPC Developer · Real-Time Application Developer · Performance Optimization Developer · Admin Dashboard Developer · Internal Tools Developer · Supabase Developer · OpenAI API Developer
Steps for completing your project
After purchasing the project, send requirements so Faiq can start the project.
Delivery time starts when Faiq receives requirements from you.
Faiq works on your project following the steps below.
Revisions may occur after the delivery date.
Use Case Definition
Clarify the AI problem and success metrics.
Data Preparation
Clean and structure your data (PDFs, databases, knowledge base).