01
Betcoin
Backend system simulating a betting/trading platform with wallet management, transactional integrity, and real-time balance updates.
Spring Boot · Transactions · Concurrency
</>Uanik
Uanik
Software Engineer
I build high-performance backend systems focusing on consistency, low latency, and scalable architecture.
Tech Stack
Java · Spring Boot · PostgreSQL · Redis · AWS · Docker · Linux · FastAPI · Python · React · JavaScript
Projects
02
Order Matching Engine
In-memory matching engine implementing price-time priority with efficient order matching and support for limit and market orders.
Core Java · Concurrency · Data Structures
Writing
Notes on systems, performance, and backend engineering.
01
Haversine vs PostGIS: A Small Experiment with 1 Million Locations
A hands-on benchmark comparing the Haversine formula against PostGIS spatial queries for nearest-location search at scale, with results from testing against a dataset of one million points.
2025-06-01