The Principal Integration Engineer is responsible for the design, development, governance, and operational support of enterprise integrations supporting Workday HCM, Finance, Payroll, and related institutional systems. This role leads the technical architecture for inbound and outbound interfaces, ensures data integrity across systems, and partners with functional and technical teams to deliver secure, scalable, and reliable integrations. The Principal Integration Engineer establishes standards, oversees middleware and interface design, and ensures alignment with enterprise architecture, security, and data governance frameworks.