Job Title: Oracle Integration & API EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * *The Opportunity:CACI is seeking a Principal Consultant specializing in Oracle Integration & API Engineering to support a large federal HR modernization initiative. In this role, you will design and maintain the integration fabric connecting Oracle Fusion Cloud HCM with the federal HR ecosystem. You will work with significant independence and serve as a senior technical resource for complex integration engineering across the program.This position is primarily remote; however, candidates may be required to report onsite in Reston as business needs arise.Responsibilities:Design, develop, and maintain integration interfaces between Oracle Fusion Cloud HCM and systems such as EHRI XML/SFTP, eOPF EDF/FDF/IDF, USA Staffing RPI/NHI/TUAPI, USA Performance, Employee Express, and MyPay.Engineer bidirectional payroll integrations with federal shared service providers NFC, DFAS, IBC, GSA using HCM Extracts and payroll costing flows aligned with provider specifications.Build integration flows in Oracle Integration Cloud OIC using adapters, orchestration patterns, error handling, and retry logic to meet program uptime SLAs.Implement integration endpoints through the federal API Management APIM gateway using OAuth 2.0, REST/JSON, and OpenAPI 3.0 standards.Develop webhook‑based, event-driven integrations supporting near-real-time synchronization for benefits enrollment, payroll changes, and personnel action events.Design monitoring dashboards, alerts, and automated error‑recovery workflows to ensure proactive identification and resolution of issues.Create and maintain integration technical design documentation, interface control documents ICDs, data mapping specifications, and API documentation using OpenAPI 3.0.Support FEH
