Software engineers within Prescription Automation (a McKesson company) create, deploy, and support software for managing large, semi-automated pharmacies at sites across the US. Successful senior engineers understand the full software stack from low-level control of robots and conveyor systems, through controllers and databases, and up to UI and web services. Senior software engineers lead development of major new features and provide support for major customers. As part of Software Leadership, they set the direction for engineering methodologies including tools, testing, and processes.