At Traveloka, I reduced cloud infrastructure costs by 20% through legacy-service decommissioning, code efficiency, right-sizing, and modernization from EC2 to ECS Fargate. I also led a DOMO-to-EMR migration using Apache Spark and Scala, cutting costs by 30%.
I've automated payment, sales, and tax reporting from five days to one day using Lambda, SNS, SQS, and S3 events, while improving big-data queries through caching and Parquet read logic. I strengthened delivery practices with GitHub CI/CD, automated testing, trunk-based development, feature flags, and Copilot-assisted code review and test generation.
Previously at Bina Nusantara University, I led teams building and modernizing ERP and graduation systems, saving more than $100,000 annually and reducing batch-processing errors by 75%. I also optimized a student-attendance query from 3–5 minutes to 1–2 seconds.
