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I will build a custom rag ai agent with vector database
Ali
About this gig
Stop dealing with AI hallucinations. Get a professional AI Agent that actually knows your data.
I build high-performance RAG (Retrieval-Augmented Generation) systems. Unlike standard bots, my agents use a Vector Database to provide precise answers grounded in your specific documents, Wiki, or lore.
What I offer:
Custom RAG Architecture: Seamless connection between LLMs and your data.
Vector DB Integration: Fast semantic search using PostgreSQL/pgvector.
Persona Layer: Advanced logic for unique AI personalities (from "Lore Expert" to "Professional Assistant").
Wiki Ingest System: Automated tools to feed information from web sources directly into AI memory.
Full-Stack Solution: Clean ASP.NET Core backend + modern React/TS frontend.
The Tech Stack:
C#, .NET, OpenAI/Claude, pgvector, React, Swagger API.
Why me?
You get a production-ready system with full Swagger documentation, not just a simple prompt.
Please message me before placing an order to discuss your requirements!
Get to know Ali
Ali
Full stack, AI Developer
- FromKazakhstan
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, Kazakh, Russian
I am a second year student at the University Of Nottingham and am an AI and Full-Stack Engineer.
Do you want to integrate or Create AI agent? I can develop it for you!
Im using .NET environment with PostgreSQL(pgvector for AI vector Database) and for Front-End I use React with TypeScript. Also I know how to use Docker to make it easier to open the project in your device. In addition for AI Engineering Im using RAG System and Fine-tuning, and I can change temperature and behavior of the LLM.
In my Github I have some projects related to Full-Stack and AI development.
FAQ
What is RAG and why is it better than a normal chatbot?
RAG stands for Retrieval-Augmented Generation. Instead of relying only on general AI knowledge, the agent first searches your specific documents or database for the correct information. This ensures 100% accuracy and eliminates "hallucinations" or made-up facts.
Can you integrate the AI agent into my existing website or app?
Yes! I develop the backend using ASP.NET Core and provide a full Swagger (OpenAPI) documentation. This allows your developers to easily connect the AI logic to any frontend or platform.
Do I need to provide my own OpenAI or Anthropic API key?
Yes, you will need to provide your own API key. This ensures you have full control over your usage costs and data privacy. I will guide you on how to set this up.
Is my data secure in the Vector Database?
Absolutely. I can set up a local or private vector database (like PostgreSQL with pgvector) where your data is stored securely. It is not used to train public AI models.
Can you give the AI a specific personality or "vibe"?
Yes! I can implement a "Persona Layer" with custom logic. Whether you need a thematic character (like a Warhammer Tech-Priest) or a formal business assistant, the AI will maintain a consistent tone and vocabulary.
