Senior Integration Engineer

We are seeking a Senior Integration Engineer to join EPAM's strategic partnership supporting a complex business separation and standalone migration program. This initiative includes migrating 600 applications across On-Premise (275), SaaS/Subscription (277), and Lab & OT (47) environments, driving execution toward a firm Go-Live date of July 1, 2027. This is a hands-on technical execution role responsible for implementing enterprise middleware connections across the program's massive interface landscape (~13,154 interface links). You will rebuild and re-point interfaces on the new platform, validate end-to-end message flows in close collaboration with application owners and the SAP track, and actively support the SAP-clock cutover. Throughout the integration lifecycle, you will leverage AI-assisted interface refactoring tools, automated message payload validation, intelligent integration monitoring, and AI-driven cutover synchronization to ensure zero data loss, flawless mapping, and smooth wave execution. Responsibilities Rebuild, configure, and re-point legacy interfaces across target enterprise integration platforms (webMethods, SAP BTP CPI, Azure API Gateway) following global architecture patterns Partner directly with application owners, functional consultants, and the SAP track to execute rigorous end-to-end message flow validation (IDoc/ALE, RFC/BAPI, REST/SOAP APIs) Utilize AI-powered integration testing tools, automated schema mapping assistants, and intelligent payload validation scripts to accelerate development and catch mapping discrepancies early Ensure seamless data synchronization between connected satellite applications and core SAP hubs across migration waves Participate in cutover rehearsals, execute delta configuration syncs, and provide dedicated operational support during the synchronized SAP-clock cutover weekend Rapidly investigate and resolve integration errors, message delivery failures, and connectivity bottlenecks during SIT, UAT, and hypercare Collaborate cross-functionally with business application owners to align integration delivery with wave execution milestones Requirements 3+ years of hands-on experience in middleware development and enterprise integration Practical, hands-on background in developing and re-pointing integrations using Software AG webMethods, SAP BTP Cloud Integration (CPI), or Azure/AWS API Management Deep familiarity with SAP integration mechanisms (IDoc, ALE, RFC) and additional SAP messaging protocols (BAPI, OData) Proficiency in standard enterprise protocols (REST, SOAP, SFTP, AS2) Expertise in leveraging AI-assisted code/mapping refactoring tools, automated message validation scripts, and intelligent integration monitoring platforms Strong competency in executing end-to-end message flow testing, payload validation, and working collaboratively with business application owners Capability to execute rigorous deployment runbooks and support high-stakes cutover weekends under strict maintenance windows English proficiency at an Upper-Intermediate level (B2) or higher Nice to have Showcase of experience working on complex M&A IT separation or TSA exit integration programs Familiarity with Ardoq integration inventories or automated CI/CD deployment pipelines for middleware artifacts Qualifications in webMethods, SAP BTP, or cloud integration architectures