Worked on the gitlabhq/gitlab-runner repository to deliver a feature-flagged native shutdown path for the container engine, enhancing the reliability of job cancellation handling in CI environments. The solution ensured that SIGTERM signals are sent directly to PID 1, enabling graceful shutdown of containerized processes and reducing the risk of orphaned or leaked jobs. By introducing a fresh context in the StopKillWait function, the implementation prevented ContainerStop from being skipped when the build context was canceled. This work demonstrated proficiency in Go programming, container orchestration, and context management, resulting in improved resource utilization and more robust container lifecycle handling.