Natalia Kaczyńska Python/AI developer (LLM, chatbots, RAG)

I create AI-based applications, chatbots, and RAG solutions. I focus on Python and language models, building systems that automate data processing and user communication.

I also work with web and backend technologies, including React, Node.js, JavaScript, SQL, PHP, and C++, building complete applications — from frontend UI layers to server-side logic and API integrations.

I’m open to learning new technologies and further developing the ones I already know, combining different tools and technologies in practical projects.

What do I specialize in?

I develop backend applications in Python and solutions based on AI and language models. I build chatbots, AI agents and sytems that automate data processing and communication with users.

Chatbots and AI applications

I build chatbots and systems based on language models (LLMs) that automate communication and data workflows.

Backend in Python (FastAPI)

I develop APIs and application logic in Python, integrating AI systems and external services.

AI agents and automation

I design solutions that automate tasks and analyze data from various sources.

Integrations and data processing

I integrate applications with databases and data processing tools.

Selected projects

Hair salon with chatbot receptionist

Quick appointment booking and convenient admin panel management

Technologies used: FastAPI, SQLAlchemy, OpenAI API (including tool calling),
pgAdmin

RAG Chatbot for an Electronics Store

A chatbot that responds to user queries on an e-commerce website using the RAG vector database.

Technologies used: AWS Amazon (Claude Haiku Bedrock model, S3 (model
amazon.titan-embed-text-v2:0))

About me

I'm a Python/AI developer focusing on building applications based on language models (LLMs), chatbots, and RAG solutions. I create projects that automate data manipulation and user communication.

I'm looking for my first role as an AI/Python developer.