Selected work
Projects I've built over the years — some for work, some for fun, most out of curiosity.
Production-grade multi-tenant chatbot platform with a full RAG pipeline. LangChain + Claude at the core, pgvector embeddings, Go DAG execution engine, NestJS APIs — Kubernetes deployment with Langfuse observability.
Golang · Python · LangChain · pgvector · Claude
Real-time simulation engine processing live sports match data for a betting platform. OpenAI to generate realistic match outcomes across football, tennis, and basketball. Kafka + DuckDB pipelines for live match feeds, automated replays and batch backloads.
Golang · OpenAI · Kafka · DuckDB
A POC that let non-technical users query structured datasets in plain language — no SQL, no code. Built before everyone was calling it RAG.
A chess engine built from scratch to get into minimax, alpha-beta pruning, and positional heuristics. Beats Stockfish up to level 3.
Python
Sole engineer managing US market data collection for high-frequency trading at InCommodities. Built services, APIs, and acquisition scripts; reduced pipeline errors by 33%. Python ETL with Argo Workflows let non-technical analysts build their own tools.
Python · NodeJS · F# · Argo Workflows · ETL
Developed and sold a private platform for tracking and comparing odds across online casinos. Grew into a commercial product.
NodeJS · Web Scraping · Automation
Undetectable bots with NodeJS & Playwright for complex data collection, rotating proxy setup to bypass regional blocks. BullMQ job schedulers with monitoring, plus a React/ChartJS app for interactive data visualization.
NodeJS · Playwright · BullMQ · ReactJS
An automation pipeline using OCR to pull structured data from documents and screenshots. Also ended up using it for visual testing in cases where standard assertions weren't enough.
OCR · Automation
A side project from when I was picking up Go — estimates live train positions across Belgrade's rail network by combining station coordinates with published timetables.
Golang
A lightweight Go service connecting POS terminals to the NBS (National Bank of Serbia) authority server, implementing the LPFR fiscal protocol for payment compliance.
Golang
A customizable invoice builder with a drag-and-drop editor. Per-client templates, recurring schedules, finished PDFs auto-sent — put it together because I was generating the same invoices manually every month.
TypeScript · PDF
An anonymous messaging app built while learning cryptography. End-to-end RSA encryption, no persistent identity — more of a learning project than a real product.
RSA · Encryption
A bot that plays Minesweeper by reading the screen and applying constraint-solving logic to identify safe cells. No game hooks or extensions — just screen capture and mouse control.
Python
A shipment tracker built for small businesses. Gives a clear view of active and completed deliveries without the spreadsheet juggling.
Built at the school to replace spreadsheets — tracks equipment across departments and generates yearly inventory reports. Before this, someone had to walk every room with a clipboard.
An IT ticketing tool for teaching staff to report issues. Replaced hallway requests and messages with an actual queue.
Profile
Heyhoo, I'm a software Engineer driven by curiosity, building scalable systems while exploring technologies, cultures, and knowledge beyond the boundaries of software.
I've always been driven by curiosity and a desire to understand how things work. While software engineering is my profession, my interests extend far beyond technology. I enjoy traveling and experiencing different cultures, learning how people live, think, and solve problems in different parts of the world. I'm fascinated by history, the origins of civilizations, and the forces that have shaped humanity's journey over time. Equally, I find myself drawn to questions about where we are headed... how technology, society, and human behavior influence the future we are building.
Whether I'm exploring a new country, diving into a historical topic, experimenting with emerging technologies, or researching an unfamiliar idea simply because it caught my attention, I'm motivated by the same underlying principle: continuous learning. I believe some of the most valuable insights come from connecting ideas across disciplines, cultures, and perspectives. For me, growth comes from remaining curious, questioning assumptions, and staying open to new ways of understanding the world.
Experience
Betting Platform
Simulations
Data Collection
Education
Toolbox
Languages, tools, and practices I've used across different projects and teams.