PT Serasi Autoraya (SERA) — Astra Group
Backend Engineer (Consultant via PT Insure Media Solusi)
- ✦Managing core enterprise fleet telemetry and transaction services under high vehicle concurrency, engineered event-driven microservices and message pipelines with idempotency locks, achieving 99.9% uptime across distributed operations.
- ✦Facing bottlenecks in cross-system contract sync and asynchronous queue processing, orchestrated Azure Service Bus pub/sub topics and optimized query layers to reduce broker latency by 35% under peak load.
- ✦To prevent transaction replay vulnerabilities in distributed scheduling workflows, designed distributed locking and deduplication mechanisms handling 100K+ daily state transitions with zero recorded duplicate entries.