Month: 2026-04: Security and observability enhancement in envoyproxy/envoy; delivered TLS certificate fingerprint and issuer serial exposure to improve traceability of TLS connections; committed as 15bcd88cf0449d4825c7b04fc647292564b47f16 (#43723).

March 2026: Focused on reliability and maintainability of Bedrock integration in BerriAI/litellm. Delivered a bug fix for the Bedrock count_tokens endpoint to correctly honor api_base and aws_bedrock_runtime_endpoint configurations by using a unified get_runtime_endpoint() resolution, with added unit tests covering custom endpoints and environment variable handling. Strengthened test quality for Bedrock token counting by removing unused imports, tightening assertions to require exact endpoint matches, and cleaning common_utils. These changes preserved production behavior while reducing test flakiness and setup noise. Overall impact includes reduced production risk, more accurate token counting, and faster iteration on Bedrock-related work. Demonstrated team-ready skills in Python, unit testing, test hygiene, and config-driven endpoint resolution.