Senior Data Engineer at EV-EDGE
2021 – 2024 · 2025 – NowSole owner of the company-wide data platform: ingestion, lake, warehouse, streaming, orchestration, ECS-hosted services, and model serving.
- Architected a unified AWS lakehouse from scratch — multi-source ingestion into a three-zone S3 lake (raw → processed → curated) and a Redshift warehouse layer.
- Built and operate 20+ production ETL/ELT pipelines in PySpark (Glue), Lambda, and Python, with DynamoDB watermarks and UPSERT staging so every run is idempotent and safe to backfill.
- Shipped a class-based Glue/PySpark framework that cut new-pipeline time from weeks to days.
- Built Kafka + Flink streaming for real-time load management, allocating power across charging stations on the same grid.
- Built production AI services on AWS Bedrock — RAG over schema embeddings and a FastAPI Text-to-SQL API other systems call.
- PySpark
- Glue
- Kafka
- Flink
- Redshift
- ECS
- Bedrock
