At PT Indotama Teknologi Inovasi, I led backend architecture and development for inmeterai.id, a digital e-Meterai platform integrating Peruri services. I designed asynchronous processing workflows with Java Spring Boot and RabbitMQ that reduced document processing time by approximately 70%.
At PT Uniair Indotama Cargo, I re-architected a vehicle booking and tracking system using Golang, React, Kafka, Redis, and WebSockets. The system supported real-time reservations, live tracking, and automated driver assignment.
At PT Indotama Sentosa Lestari, I developed Store2Go, an e-commerce enabler that let sellers manage products, orders, and inventory across Shopee, Tokopedia, and Lazada from one dashboard. Marketplace API integrations reduced stock discrepancies by approximately 80%.

