Worked on the microsoft/hcsshim repository to enhance performance and resource isolation for Windows containers by implementing CPU affinity support for Windows JobObjects. Leveraged Go for backend development, focusing on container orchestration and precise CPU resource allocation. Developed validation logic to ensure CPU affinity settings adhered to Windows platform limitations, and integrated these controls directly with JobObject limits to enforce resource boundaries. This approach improved resource isolation and enabled more predictable performance, particularly in multi-tenant container environments. The work demonstrated a strong understanding of Windows container internals and contributed to more reliable and manageable container workloads through targeted feature development.