At SELISE Digital Platforms, I develop enterprise backend services with Java, Spring Boot, REST APIs, and PostgreSQL, and contribute to system design and API development.
I extended and customized the open-source ThingsBoard codebase for enterprise IoT platform requirements. For Recyclium, I increased QR-code batch processing capacity from 1,000 to 5,000 codes without application downtime and reduced high-volume QR API response time from 5 seconds to 2 seconds.
At eGeneration Ltd., I developed backend services and contributed to a digital learning and certification platform supporting 100K+ active users and approximately 1K concurrent users. I also developed a centralized gateway for data transfer and synchronization between central and zone servers, achieving approximately 98% data-transfer accuracy.
At ATI Limited, I designed and developed 10+ Spring Boot microservices for healthcare and hospital-management workflows, including REST APIs integrating hospital management and radiology systems. I implemented authentication and authorization with Spring Security and OAuth2.
