data engineering , Organizational Management (OM), Analysis (Technical, Personnel Administration (PA), Infrastructure as Code (IaC), or Data), Badis, Interfaces, Sap Hcm, Bapis, Version Control, Devops, Time Management, ABAP development, Custom enhancements, SAP HR Infotypes, HR ABAP development, User and Customer exits, Inbound and outbound interfaces, Payroll processes, diagramming, Business, Technical Writing, Payroll modules