Projects

Personal projects I’ve built or am actively working on.

Go Kafka (In Progress)

A distributed, fault-tolerant message queue built from scratch in Go, inspired by Apache Kafka’s design.

• Implements log-based storage, topic partitioning, and consumer group semantics
• Focuses on correctness and understanding distributed consensus under the hood

Stack: Go

1BRC - One Billion Row Challenge

My solution to the One Billion Row Challenge: aggregate min/mean/max temperature per weather station across a 1-billion-row file as fast as possible.

• Optimized for raw throughput on modern Java (JDK 21)
• Includes correctness tests against reference samples and hyperfine-based benchmarking

Stack: Java

Java Single Flight

A Java library implementing duplicate suppression (single-flight), similar to Go’s singleflight package.

• Prevents redundant concurrent calls to the same key from executing multiple times
• Useful for de-duplicating expensive database or network calls under high concurrency

Stack: Java

Java Consistent Hashing

A Java library for consistent hashing with virtual node support.

• Minimizes key remapping when nodes are added or removed from the ring
• Supports configurable virtual node replication factors for better load distribution

Stack: Java

Me2diag - Medical Diagnosis Decision Support System

A decision support system for medical diagnosis using Hedge Algebra integrated with Picture Fuzzy Relations, built as the implementation of my published research.

• Published in the International Journal of Fuzzy Systems (2023): doi.org/10.1007/s40815-023-01548-4
• Full-stack system with a Spring Boot backend, React frontend, and a Python Flask model service

Stack: Java (Spring Boot), React, Python (Flask), MariaDB, MinIO, Docker