At Muehlbauer Group, I build and maintain Spring Boot microservices for a high-volume identity card personalisation system. I replaced synchronous call chains with Kafka-based notifications to keep card state consistent across production and verification systems.
I reduced average response time on read-heavy endpoints from about 350ms to 210ms with Redis and Spring Cache, and optimized SQL queries on critical workflows.
I integrated LLM APIs into a dedicated Spring Boot service and built a RAG pipeline over internal documentation and operational data. It achieved an 87% retrieval hit rate on 120 test questions.
On Upstrives.com, I built a backend for a career mentorship platform, including secure scheduling and online payments. I’m also building BucketGuard, a distributed rate-limiting library for Spring Boot backed by Redis.
