Gersi Muca

Built and maintained event-driven microservices using Quarkus and Azure Event Hubs to enable asynchronous transaction processing and improve system responsiveness. Led migration of legacy JBOSS monoliths to containerized Spring Boot services, reducing deployment time (35–40 minutes to 20 minutes) via build-once, promote-across environments, consistent container image tagging, and zero-downtime production releases using OpenShift and Helm. Optimized critical APIs with Caffeine in-memory caching and SQL query tuning, reducing P95 latency (1.2s to 350ms) and eliminating timeout errors during peak periods. Architected an exactly-once Kafka pipeline using the Outbox pattern to eliminate data consistency incidents and used CAS operations to prevent race conditions and data corruption. Built end-to-end CI/CD pipelines with Jenkins and Docker, integrated Snyk security scanning and Prometheus monitoring, and deployed on OpenShift running on Azure.

Engineered a more efficient and scalable back-end infrastructure for a desktop application, reducing loading times by 40% and improving user experience. Implemented software enhancements during the design phase, improving overall productivity metrics for the engineering department by 15%. Developed a warehouse solution using advanced algorithms that dynamically adapts to available free space, increasing resource utilization efficiency by 30%. Applied strong software development best practices including CI/CD, cutting deployment time by 30% and improving code quality by 20% through stringent pull requests and reviews; strengthened stability through load/stress testing (15% improvement) and reduced production bug reports by 25% through thorough testing.