Balal Saleh upgraded the runtime and CI/CD infrastructure for the NHSDigital/e-referrals-service-patient-care-api and NHSDigital/e-referrals-service-api repositories, focusing on platform stability and maintainability. He migrated both services to Python 3.10, refreshed dependencies such as lxml and pytest-nhsd-apim, and standardized workflow configurations using YAML and Shell scripting. By updating CODEOWNERS files and aligning ticket naming conventions, Balal improved cross-team collaboration and onboarding processes. His work established a consistent upgrade path and governance model, reducing maintenance overhead and enabling more reliable releases. The depth of these changes provided a stronger foundation for secure, efficient, and collaborative development practices.