I will build custom ai rag application with nextjs, langchain and openai

E
ecomistry
E
ecomistry
Zain Ul Abideen
5.0
5.0
build custom ai rag application with nextjs, langchain and openai
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build custom ai rag application with nextjs, langchain and openai
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build custom ai rag application with nextjs, langchain and openaibuild custom ai rag application with nextjs, langchain and openaibuild custom ai rag application with nextjs, langchain and openai

About this gig

Are you looking for a custom AI RAG application or LLM integration in Next.js? I build secure, production-ready AI web applications with Next.js, LangChain, Vector Databases, and OpenAI.

Whether you need a document Q&A chatbot, custom knowledge-base system, or a full-stack AI SaaS platform, I deliver fast, scalable software from architecture to cloud deployment.

WHAT I BUILD

  • Custom RAG Systems (Chat with PDFs, Docs, URLs & custom data)
  • Custom AI Chatbots & Assistants integrated into Next.js apps
  • Vector Database Pipelines (Pinecone, Chroma, Pgvector)
  • Full-Stack AI SaaS MVPs with Auth (NextAuth) and Stripe
  • Fine-Tuned AI Workflows & Custom API Connectors

TECH STACK

  • Frontend: Next.js (App Router), React, Tailwind CSS, TypeScript
  • AI & LLM: LangChain, OpenAI API, Anthropic Claude, LlamaIndex
  • Databases: PostgreSQL, Supabase, MongoDB, Pinecone, ChromaDB
  • DevOps: AWS (EC2/S3), Vercel, Docker, Replit

WHY WORK WITH ME

  • Production-Ready Code: Clean, maintainable, and well-documented.
  • Context & Hallucination Control: Optimized vector retrieval and prompt engineering.
  • Reliable Communication & Post-Delivery Support

Note: Project scope dictates exact timeline. Message me first with your requirements

  • Application Type

    • Web Application

  • AI Type

    • Chat
    • Productivity Tools
    • Custom

  • Programming Language

    • JavaScript
    • Python
    • TypeScript
    • React

  • Web Frameworks

    • React
    • Express.js (Node.js)
    • Next.js

  • Desktop Frameworks

    • Electron
    • React Native for Web

  • No & Low-Code Builders

    • Lovable
    • Replit

Get to know Zain Ul Abideen

Zain Ul Abideen

Expert Full Stack Developer, React Js, Node Js, Next Js, Express Js

5.0(1)
  • FromPakistan
  • Member sinceJul 2022
  • Last delivery4 years

  • Languages

    English
I deliver fast, scalable web apps that perform. I’ve helped platforms serve thousands of users and cut system latency by up to 90%. With 3+ years in full-stack and AI integration, I build SaaS apps, dashboards, and smart AI features using React, Next.js, Node.js, Python, and AWS. Expect clean code, reliable performance, and on-time delivery. Clear communication, no surprises. Message me to get started.

My Portfolio

Other AI Development Services I Offer

Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Recommend to a friend
    5
  • Service as described
    5
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    marquebeyond

    LK

    Sri Lanka

    5

    PERFECT Work. He is One of the best seller you could find on Fiverr. Did the work on time.. Highly Recommend. Hoping to work with him again in the nearest Future

    $50

    Price

    Helpful?
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Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Recommend to a friend
    5
  • Service as described
    5
Sort By
Most relevant
  • M
    image-docs

    marquebeyond

    LK

    Sri Lanka

    5

    PERFECT Work. He is One of the best seller you could find on Fiverr. Did the work on time.. Highly Recommend. Hoping to work with him again in the nearest Future

    $50

    Price

    Helpful?
    Yes
    No

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