Worked on enhancing CI/CD workflows for the step-security/arm-int-tests repository by introducing actions/checkout@v4 across multiple GitHub Actions workflows. This update ensured that repository code was reliably checked out for all subsequent workflow steps, enabling consistent access to files and event data throughout the build process. The technical approach focused on improving build determinism and debugging efficiency, with all changes implemented using YAML and leveraging CI/CD best practices. No production bugs were reported during this period, and the work resulted in measurable improvements to release velocity and workflow reliability, reflecting a focused effort on engineering quality and process optimization.