Product Developer
Oct 2025 - PresentAstraPay
Jakarta, Indonesia (Contract via Berijalan) · contract
Contributing to AstraPay's digital wallet platform, specializing in high-throughput backend services, modern data warehousing, automated ETL pipelines, and system reliability.
- + Designed and developed highly resilient data ingestion and Reverse ETL pipelines in Java using Spring Batch featuring watermark delta loading, dynamic schema evolution, and polymorphic type conflict self-healing
- + Developed an enterprise BigQuery cost monitoring and Looker Studio usage intelligence platform using GCP Logging, Information Schema query logs, and Google Colab APIs to minimize GCP scan expenditures
- + Architected highly optimized internal data warehouse transformations using Dataform in Incremental Mode to eliminate redundant daily full-table scans
- + Built automated ETL synchronization pipelines integrating BigQuery, GCS, Sharepoint, and MoEngage, automating CRM user-segment syncs and saving 24 hours of manual labor per cycle
- + Designed secure REST APIs and configured external API Gateway routes for B2B merchant financial reports