Hands-on experience developing and maintaining integrations between enterprise business systems (e.g., Microsoft Dynamics 365, Concur, Workday, Salesforce) using REST/SOAP APIs, middleware, and event-driven or file-based patterns. Design, build, and maintain integrations between core business systems (e.g., Microsoft Dynamics 365, Concur, Workday, Salesforce), ensuring reliable, secure, and well-monitored data flow across the enterprise.