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I will debug your langchain fastapi python or next js code
Pratik
About this gig
Got a stubborn bug in your Python, LangChain, FastAPI, or Next.js project? I'll find it and fix it fast.
I'm a Full Stack AI Engineer building production AI systems for the Government of India (NeGD, MeitY). I work daily with LangChain, LangGraph, FastAPI, pgVector, and Next.js so I understand AI/ML codebases deeply, not just surface-level fixes.
WHAT I CAN FIX:
LangChain / LangGraph errors & agent issues
FastAPI / Django / NestJS backend bugs
Python script errors, async & logic bugs
Next.js / React rendering & API route bugs
PostgreSQL / pgVector / Supabase query issues
Docker / AWS deployment errors
WHY CHOOSE ME:
1.5+ years production AI engineering experience
Currently building for Govt. of India
Deep expertise in AI/ML codebases
Clear explanation of every fix delivered
Clean, well-documented code every time
HOW IT WORKS:
1. Share your code + error message
2. I fix it and deliver with full explanation
3. You get clean, working code fast
Let's fix it.
Get to know Pratik
Pratik
Full Stack AI Engineer, GenAI, LangChain, RAG
- FromIndia
- Member sinceJan 2021
- Avg. response time3 hours
Languages
English, Hindi
Full Stack AI Engineer with 1.5+ years of experience building production GenAI systems, RAG pipelines & agentic AI workflows. Currently at NeGD, MeitY (Govt. of India) — processing 17,000+ records with BERT, FAISS & LangGraph, achieving 80%+ efficiency gains. I specialize in RAG Chatbots, LLM Apps (LangChain, LangGraph, Claude/OpenAI API), Agentic AI Systems, FastAPI & NestJS backends, Next.js full-stack apps, Python automation & AWS deployment. Delivered production-grade AI for senior Govt. of India leadership. Clean code, clear communication, on-time delivery. Let's build.
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FAQ
What information do you need from me?
Please share your code (GitHub link, zip, or paste), the exact error message you are seeing, and what the expected behavior should be. The more context you give, the faster I can fix it.
Can you fix bugs in LangChain and AI projects?
Yes — this is my specialty. I work daily with LangChain, LangGraph, FAISS, pgVector, and FastAPI in production. I can debug complex AI pipelines that most developers struggle with.
What if the bug is not fixed after delivery?
I offer revisions. If the bug persists after my fix, I will investigate further at no extra charge within the revision count of your chosen package.
Do you share the source code after fixing?
Yes, source code is included in all packages. You will receive the complete fixed code along with a clear explanation of what was wrong and how it was fixed.
