SAP BTP Integration Suite Architect

Organizational setting:

Our client's ERP system is a continuous organizational transformation, enabling high-quality and cost-effective service delivery for evolving United Nations mandates anywhere in the world. By updating skills, harmonizing practices and applying global technology, the ERP system maximizes the productivity of the organization's human, financial and material resources. The ERP System transcends organizational, geographical and functional barriers, fostering transparency, accountability, empowerment, sharing and unity across the organization.

The organization is undertaking a strategic ERP modernization initiative to migrate its existing SAP ECC landscape to SAP S/4

HANA. To support this transformation, the ERP system seeks an experienced SAP BTP Integration Suite Architect to lead and perform the hands‑on migration of SAP PI/PO integrations to SAP Cloud Integration Services (CIS), redesign interfaces for S/4

HANA, and establish secure, supportable cloud integration and API management capabilities.

The consultant will work across Finance, Treasury, SWIFT, HCM, SCM and infrastructure work streams and will be accountable for actual integration design, build, testing, deployment, cutover and hypercare activities, rather than advisory services only.

• Assess the SAP S/4
  
  HANA functional and technical impact on existing integrations, review interfaces individually, identify changed endpoints, data structures and protocols, and eliminate deprecated components once target endpoints and destinations are confirmed.
• Perform hands‑on migration of SAP PI/PO interfaces to SAP Integration Suite Cloud Integration, including design, configuration, build, unit testing, documentation and deployment of production‑ready integration flows.
• Build and unit test CIS integration flows using adapters and protocols including SOAP, REST, SFTP, File, IDoc, JDBC, RFC and OData.
• Convert PI/PO mappings and orchestration logic to CIS equivalents, including message mappings, XSLT transformations, Java-to‑Groovy rewrites, value mappings, content modifiers, exception subprocesses and reusable integration components.
• Implement multi‑receiver routing using CIS Router steps and reproduce existing PI receiver‑determination and conditional‑routing logic.
• Reimplement custom PI B2B integrations using standard SAP Integration Suite B2B capabilities, including SAP Integration Advisor and Trading Partner Management.
• Design and implement S/4
  
  HANA integration patterns, including OData and REST APIs, IDoc changes, event‑driven integration and migration of appropriate RFC‑based interfaces to REST or released APIs.
• Design and implement API‑led integration patterns using SAP API Management, and configure required API policies in Policy Designer, including authentication, authorization, throttling, quotas, traffic control, logging and threat protection.
• Configure and support SAP Integration Suite monitoring, alerting, message tracing, exception handling, retry and reprocessing mechanisms, operational dashboards and support procedures.
• Implement CIS security controls, including OAuth, certificate and key management, Secure Parameter Store, secure connectivity, role‑based access and separation of duties.
• Use and support relevant SAP BTP integration services, including API Management, Event Mesh and Edge Integration Cell, where required by the target architecture.
• Collaborate with FI, Treasury, HCM, SCM, Basis, security and infrastructure teams to analyse interface impacts, validate business and technical requirements and define integration changes required for S/4
  
  HANA.
• Support system integration testing, defect resolution, regression testing and post‑go‑live parallel runs for critical FI, Treasury, SWIFT, HCM and SCM interfaces.
• Prepare and execute integration cutover plans, transports, production deployments, go‑live activities, stabilization and hypercare support.
• Update the interface readiness tracker weekly, maintain risks and dependencies, and elevate critical blockers within 24 hours.
• Produce and maintain technical designs, interface specifications, mappings, configuration documents, test evidence, deployment…