Worked on the DataDog/datadog-agent repository to enhance NetFlow v9 payloads by adding ToS, DSCP, and DSCP name fields, improving network traffic visibility and diagnostics. Developed backend logic in Go to decode the ToS byte into DSCP values and RFC-standard names, ensuring accurate representation of network metadata. Updated unit tests and test utilities to reflect the new mandatory fields, validating the changes with synthetic NetFlow v9 traffic and confirming UI filters displayed the enriched data correctly. This work demonstrated a strong focus on backend development, network protocols, and comprehensive testing, ensuring the feature was robust and ready for deployment.