Projects

Led migration of a critical authorisation microservice from AWS DynamoDB to PostgreSQL, enabling a later AWS → GCP move that cut infrastructure costs significantly.

A Java-based emulator for the Intel 8086 microprocessor with a Swing GUI for writing, loading, and step-executing 8086 assembly programs.

A Kotlin tool that calculates reckonable residence days for Irish citizenship applications, tracking IRP periods, travel absences, and the 70-day annual excuse allowance.