Core Competencies
Areas where I bring deep expertise and a track record of delivery.
Languages & Frameworks
Cloud & Infrastructure
Data & Messaging
Architecture
Career Highlights
Led Flowable vs. Camunda vs. Temporal evaluation and the OSS-to-Enterprise migration, then architected a multi-tenant service extensibility platform (Spring Boot, Kubernetes) with a Java SDK hooking into the REST request lifecycle and a secure gRPC-based Groovy sandbox for untrusted customer code. Adopted by 20+ teams, cutting custom development effort by 80%; sustained 1,000 workflow executions/sec at 100ms p95 (PostgreSQL + PgBouncer/HikariCP tuning, JMeter/BlazeMeter).
Built ExxonMobil's B2B ordering portal features on SAP Commerce: ML-driven automated stock replenishment (20% fewer stock shortages) and a Spring Boot + RabbitMQ subscription ordering system with daily/weekly/monthly recurring orders (+15% recurring volume), plus buy-back and marine/ocean-shipment ordering.
Developed reusable commerce capabilities on SAP Commerce (Hybris) for Singtel's B2C mobile/SIM retail platform — including cart restoration and Solr-indexed product search.