What changed
- Improved query speed with partitioning and better file formats.
- Kept costs low with pay-per-query services.
What I worked on
- I designed the setup, built the ETL and data catalog flow, and tuned it for speed and cost.
Raw data lands in S3. Glue transforms it and adds it to the data catalog, Athena makes it queryable with SQL, and QuickSight turns the results into interactive dashboards. Every step is a managed service, so there are no servers to run.