Dedicated to clean, maintainable code — crafted with patience and precision. Building enterprise systems that endure.
A Backend Developer who strives for clean, maintainable code in every endeavour. Deeply proficient in Java Spring Boot with a strong foundation in enterprise-grade solution development.
Currently serving as a Junior Consultant at PT PHINCON, having worked alongside Telkomsel, BNI, and BCA — focused on API development, system enhancement, and performance optimisation.
A personal open-source Java library published to Maven Central. Provides a standardised, reusable logging utility for Spring Boot applications.
A community-based odour reporting mobile application. Users can pin, rate, and browse smell reports on an interactive map.
smellradar.yahyawijaya.com →Development of API services to support business operations and Notification Systems. Designed and enhanced backend services for seamless, uninterrupted operation.
Upgraded TIBCO products to the latest versions. Created documentation for TIBCO Enterprise Administrator and guided the installation process.
Developed a bespoke enterprise application for BNI's Procurement division. Built REST APIs and database views using Oracle.
Handled incidents and developed cases for TIBCO BusinessWorks 5. Created documentation and log rotation procedures for archival purposes.
Diagnosed and resolved a critical TIBCO integration bottleneck impacting Telkomsel's notification pipeline, restoring stable message flow under production pressure.
Identified slow Oracle query patterns in BNI's Siebel procurement system and proposed targeted optimisations, reducing response time without structural changes.
Coordinated across backend, database, and client stakeholder teams during multi-client delivery at PT PHINCON, ensuring alignment on scope and timelines.
Switched fluently between Java, Golang, TypeScript, and TIBCO across different client projects — sometimes within the same sprint — without compromising output quality.
Maintained precise Spring Security configurations across microservices, ensuring no auth regression slipped through during iterative deployments for BCA.
Delivered the TIBCO BPS license renewal on schedule, coordinating infrastructure tasks in parallel to minimise production downtime risk.
I remain ever open to discussions of new ventures, creative ideas, or opportunities to become part of your esteemed team.