Worked on enhancing domain account secret lifecycle policies within the dotnet/dnceng repository, focusing on improving security and compliance. Developed and implemented a feature in C# that set secret expiration to six months and rotation to five months, reducing the risk of stale secrets and aligning with best practices for domain account security. The approach involved policy configuration, version control, and lifecycle governance, ensuring traceability and audit readiness. No major bugs were addressed during this period, as the primary effort centered on this policy enhancement. Demonstrated skills in secret management and domain account security, contributing to a more robust security posture.