We are seeking an experienced Oracle Integration Cloud (OIC) Developer to design and implement secure REST-based integrations between our on-premises Oracle E-Business Suite (EBS) 12.2.14 environment and an external third-party system. The role focuses on leveraging OIC as the central integration platform to enable bidirectional communication, including transaction processing (e.g., purchase orders and invoices), financial data lookups, and reference/master data exchanges (e.g., vendor, and accounting data). You will apply OIC best practices to build robust, scalable integrations using synchronous and asynchronous REST services with JSON payloads and OAuth 2.0 security. This is a hands-on role emphasizing OIC architecture, development, and optimization, with collaboration alongside our in-house EBS experts for data handling. 
Key Responsibilities:Design and develop REST service interfaces in OIC, including hosted services for inbound calls from the external system (e.g., transaction processing and data lookups) and outbound integrations to the external system (e.g., sending acknowledgments, status updates, and master data).Implement secure authentication using OAuth 2.0 for all REST endpoints, ensuring compliance with security best practices.Build and configure OIC integrations that handle JSON payloads for both synchronous (real-time responses) and asynchronous (event-driven) processing flows.Collaborate with internal PL/SQL developers to define integration points for EBS data extraction and transformation, ensuring seamless flow from EBS to OIC without requiring direct EBS development.Apply OIC best practices for error handling, monitoring, logging, and performance optimization to support reliable communication between on-premises EBS and cloud/external systems.Conduct testing, troubleshooting, and deployment of OIC artifacts, including integration flows, adapters, and mappings.Document integration designs, configurations, and operational procedures to enable knowledge transfer to the team.Stay current with OIC updates and recommend enhancements to align with evolving business needs, such as database upgrades (e.g., from Oracle 19c to 23AI).