SYSTEM STATUS: WORKING & BUILDING HOBBY PROJECTS

HELLO, I'M BRBN-JPGBRBN-JPGBRBN-JPG

My name is Jakub Kuźnicki. I am a Software Engineer and Computer Science Graduate (Engineer's degree) based in Warsaw. I specialize in Java, Python and RAG / LLM system architecture. I am currently working at Netcompany while exploring side projects and home server infrastructure.

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CORE_LANGS

Java [ FOCUS ]
TypeScript / JS [ REGULAR ]
Python [ REGULAR ]
C# [ BASIC ]

TECH_ARSENAL

Spring Boot Docker Git PostgreSQL Redis LangChain LangChain4j RAG Systems LLM Integration Angular React Vue Astro

Recent Activity

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PROFESSIONAL_EXP

Junior Java Developer

Jun 2026 — Present
Netcompany

Developing enterprise-level solutions and delivering high-quality software in a professional consulting environment.

Backend Developer Intern

Mar 2025 — Jun 2025
Paweł Weselak Pragmatyczne Programowanie

Built LangChain-based ingestion pipelines and implemented RAG systems using LangChain4j & Spring Boot. Managed containerization and deployed LLM-driven data processing solutions.

REPOSITORIES

LlamaTalks

A Spring Boot-based chatbot application leveraging LangChain4j and Ollama for advanced conversational AI with Retrieval-Augmented Generation (RAG) capabilities. It supports streaming responses, conversation management, document ingestion, and persistent chat history.

Java Spring Boot LangChain4j Ollama RAG SSE PostgreSQL

Gamelog

A full-stack game backlog management system. Organize your video game library using a Kanban-style dashboard, track playtime, rate games, and connect with other users.

Java Spring Boot React PostgreSQL Redis Docker

MapGenerator

A full-stack procedural world generator that turns a single seed into a fully-realized fantasy map. Combines a Spring Boot backend with a Vue 3 + TypeScript frontend rendering on HTML5 Canvas, with real-time streaming, stylized water animation, and dynamic terrain shading.

Java Spring Boot PostgreSQL FastNoiseLite Vue 3 TypeScript Vite HTML5 Canvas Docker

Cibaria

A full-stack web application for recipe management. The backend is powered by Spring Boot, providing robust RESTful APIs, while the frontend is built with Angular for a dynamic user experience.

Java Spring Boot Angular PostgreSQL REST API

SosniakPortfolio

A personal portfolio website built for Sebastian Sośniak with Astro, TypeScript and Tailwind CSS. Focused on fast, content-first delivery with a clean, modern presentation of projects and experience.

Astro TypeScript Tailwind CSS Vercel

StrefaSA

A modern marketing website and in-game store for a Polish MTA:SA server. As a co-owner and co-creator, I developed a cinematic landing page with live statistics and a Stripe-integrated shop.

Astro TypeScript Vercel Stripe Checkout Vanilla CSS
Check github.com/Brbn-jpg for more