Over a two-month period, contributed to both the apache/iceberg and estuary/connectors repositories by delivering five features and resolving one bug, focusing on backend development and data engineering. In apache/iceberg, streamlined the data_file manifest by deprecating the distinct_counts field, simplifying schema management and updating documentation to guide users through the transition. Work in estuary/connectors centered on enhancing CI/CD security with Docker and GitHub Actions, improving observability and version management for Databricks and Snowflake integrations, and strengthening integration and unit testing. Leveraged Go, Python, and SQL to deliver robust, maintainable solutions that improved operational reliability and developer experience across these systems.