I will develop custom ai agents rag systems and llm applications

R
rabiul5334
R
rabiul5334
Rabiul Khan
develop custom ai agents rag systems and llm applications
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develop custom ai agents rag systems and llm applications

About this gig


Looking for a custom AI agent or RAG system built with real code, not just a no-code template?

I am a Full-Stack AI Developer and AI Trainer with experience building production-ready RAG pipelines and multi-agent systems. I focus on clean, scalable, and maintainable architecture.


What I Can Build:

  • Custom AI agents with planning & tool calling
  • RAG systems for PDFs, websites & databases
  • Multi-agent workflows and orchestration
  • Document intelligence & AI search
  • LLM-powered web applications
  • AI microservices with FastAPI/NestJS
  • Vector search with PostgreSQL/pgvector
  • REST API & third-party integrations
  • AI chatbot and knowledge-base systems

Real Project Experience:

FarmIQ RAG pipeline using LangChain, embeddings and pgvector.

RepoGuard AI multi-agent architecture with Planner, Specialist and Aggregator agents for code analysis.


Tech Stack:

Python | FastAPI | TypeScript | Next.js | NestJS | PostgreSQL | pgvector | Redis | LangChain | OpenAI | Claude | Gemini | Groq

Please message me before ordering with your requirements so I can review the scope and recommend the right package.

  • Application Type

    • Web Application

  • AI Type

    • Chat
    • Education
    • Productivity Tools
    • E-commerce
    • Custom

  • Programming Language

    • Apex
    • JavaScript
    • Python
    • TypeScript
    • React
    • SQL

  • Web Frameworks

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

  • Desktop Frameworks

    • Other

  • No & Low-Code Builders

    • Other

Get to know Rabiul Khan

Rabiul Khan

Full Stack Engineer AI SaaS RAG Systems and Oracle APEX

  • FromBangladesh
  • Member sinceFeb 2021

  • Languages

    English
Oracle Certified Full-Stack AI Developer with an MBA. I build production-grade AI SaaS platforms, RAG systems, and Oracle APEX enterprise apps using Next.js, PostgreSQL, Prisma, and LangChain. My portfolio includes leading CodeArena, developing HirePilot (AI career platform with ATS scoring), and building FarmIQ (a RAG pipeline with pgvector). I focus on clean architecture, database performance, and scalable business solutions. Please message me before ordering to discuss your project.

My Portfolio

Other AI Development Services I Offer

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