I will develop ai agents, rag systems, ai saas web application, ai software developer

Z
zainulabdin568
Z
zainulabdin568
Zain Ul Abdin

About this gig

If your AI feature works in a demo. It breaks in production. Real users, concurrent requests, sensitive data that is where demo-grade builds fail.

 

I design and deploy production grade RAG chatbots and AI agent for startups and engineering teams that need their AI to work at scale.

 

My builds combine LangGraph orchestration, FastAPI backends, vector database retrieval (Qdrant, pgvector, Pinecone, LanceDB) and AWS for deployment with Docker, Kubernetes, and Terraform depending on your scale into systems that are containerized, tested, and cloud-deployed not cobbled together and handed off.

 

Every system includes hybrid search with reranking for accurate RAG results, structured outputs, rate limiting, and observability


I Deliver:

  1. RAG pipeline: Document ingestion, Chunking, Hybrid retrieval, reranking, LLM generation
  2. AI agent: LangGraph-based agent with planning, multi-step reasoning, tool calling, memory, human-in-the-loop where needed
  3. Backend API: FastAPI, async, auth, rate limiting, Pydantic-validated schemas
  4. Deployment: AWS cloud deployment with full infrastructure-as-code CI/CD pipeline and deployment documentation
  5. Observability: LLM trace logging to see model performance

Get to know Zain Ul Abdin

Zain Ul Abdin

Senior AI Engineer: RAG, AI Agents, fine tuned LLM Solutions, backend, AWS

  • FromPakistan
  • Member sinceNov 2025
  • Avg. response time1 hour
  • Languages

    English
I’m a Senior Generative AI & Full-Stack Engineer specializing in Python, FastAPI, AWS, and production-grade LLM systems. I build scalable AI SaaS apps, APIs, AI agents, RAG pipelines, chatbots, fine-tuned LLM solutions, automation workflows, and cloud deployments using LangChain,LangGraph, OpenAI, Claude,Hugging Face,Docker, Kubernetes, and vector databases. Engineering-first approach: Clean architecture, secure scalable systems, clear documentation, CI/CD, and maintainable code. From MVP to enterprise production, I help businesses ship AI products that drive growth, efficiency, and revenue.

My Portfolio