Mihai Dobre
Retrieval-Augmented Generation UK

RAG Systems

Custom RAG system development for enterprises. Knowledge base chatbots, document Q&A, and AI search solutions grounded in your actual data.

Knowledge Base
Vectors10K
Accuracy94%
Services

What I do

End-to-end RAG system development covering enterprise search, knowledge base chatbots, document Q&A, and vector database setup. Building accurate, reliable AI systems grounded in your data.

Enterprise Search

AI-powered search across your documents and knowledge base. Find information instantly using natural language.

Knowledge Base Chatbots

Chatbots that answer questions using your documentation. Accurate responses grounded in your actual content.

Document Q&A

Ask questions about your documents and get instant answers. PDFs, Word docs, and internal knowledge.

Vector Database Setup

Setting up and optimising vector databases for semantic search. Pinecone, Weaviate, and self-hosted solutions.

Data Pipeline Development

Building pipelines to process and embed your documents. Automated updates when content changes.

Accuracy Optimisation

Improving retrieval accuracy and response quality. Tuning embeddings, chunking strategies, and prompts.

Business Impact

Problems I solve

Helping businesses unlock their knowledge with AI-powered search and Q&A. Accurate, grounded AI responses that improve productivity and reduce support workload.

The Problem

Employees spending too much time searching for information

The Solution

RAG systems enable instant answers from your knowledge base. Natural language search finds relevant information in seconds.

Dramatically reduced search time and improved productivity

The Problem

Customer support overwhelmed with repetitive questions

The Solution

Knowledge base chatbots handle common queries instantly. Accurate answers sourced from your documentation.

Reduced support workload and faster customer responses

The Problem

AI chatbots providing inaccurate or made-up information

The Solution

RAG grounds AI responses in your actual documents. Citations and sources ensure accuracy and trustworthiness.

Reliable AI responses based on verified information

The Problem

Valuable knowledge scattered across documents and systems

The Solution

RAG systems unify knowledge from multiple sources. Single interface to access all organisational knowledge.

Centralised knowledge access improving decision-making
Tech Stack

Technologies I work with

Modern RAG and vector search technologies. Using proven frameworks and databases to deliver accurate, reliable AI systems.

LLM Providers

OpenAI GPTAnthropic ClaudeGoogle GeminiLlamaMistralAzure OpenAI

Vector Databases

PineconeWeaviateChromaQdrantMilvuspgvector

Frameworks

LangChainLlamaIndexHaystackSemantic KernelVercel AI SDKCustom

Embeddings

OpenAI EmbeddingsCohereHugging FaceSentence TransformersVoyage AICustom

Document Processing

PDF ParsingOCRUnstructuredLlamaParseDocument LoadersText Chunking

Backend

PythonNode.jsFastAPIPostgreSQLRedisDocker
Process

How it works

A structured approach to RAG development ensuring accurate retrieval and generation. Regular testing and tuning throughout.

01

Discovery

Understanding your knowledge sources, use cases, and accuracy requirements. Assessing document types and volumes.

02

Architecture Design

Designing RAG architecture, selecting vector database, and planning document processing pipeline.

03

Development

Building document pipelines, setting up vector database, and implementing retrieval and generation.

04

Testing & Optimisation

Testing retrieval accuracy, tuning embeddings and prompts, and deploying with monitoring.

FAQ

Frequently asked questions

Common questions about RAG systems. If you have a specific question not covered here, feel free to get in touch.

RAG (Retrieval-Augmented Generation) combines information retrieval with AI generation. It grounds AI responses in your actual documents, preventing hallucinations and ensuring accuracy. Essential for enterprise AI applications requiring reliable information.

RAG can process PDFs, Word documents, text files, HTML pages, Confluence pages, Notion docs, and more. We can also integrate with databases, APIs, and other data sources.

Accuracy depends on document quality and system tuning. Well-implemented RAG systems achieve high accuracy with proper chunking, embedding selection, and prompt engineering. We include citations so users can verify sources.

Yes. Modern embedding models and LLMs support multiple languages. We can build multilingual RAG systems that retrieve and respond in the user language.

We build automated pipelines that detect document changes and update the vector database accordingly. This ensures the RAG system always has current information.

Yes. RAG systems can be integrated via APIs into your existing applications, websites, chat platforms, or used as standalone tools. We build to your integration requirements.

Ready to discuss your project?

Tell me about your RAG requirements. I will review your needs and get back to you with initial thoughts and next steps.