Fraud detection at Paysafe
The risk department of a digital wallet platform. I built microservices handling transaction limits and fraud detection, and helped wire machine-learning models into the real-time risk scoring pipeline.
Java, Spring Boot and Kafka, deployed on AWS — plus the careful modernisation of a 20-year-old legacy application that was still doing real work.
Part of that codebase was twenty years old. It still ran.
fun fact: part of the codebase was 20 years old. It still ran.