SAP CO Architect - 6+ Months - Remote - Start November

For our end client we are looking for an experienced senior SAP CO Solution Architect to support an ongoing SAP ECC to S/4HANA bluefield transformation. The project is currently in the system integration testing (SIT) stage with a strong focus on solution quality, testing, data migration and go-live readiness. Tasks:* Lead and support SAP CO integration testing (SIT), UAT preparation and evaluate root causes* Validate S/4HANA CO solution design, including Margin Analysis (CO-PA), product costing, cost centers, internal orders and allocations* Ensure seamless integration with FI, MM, SD and PP* Support bluefield data migration, validation and reconciliation* Act as the client-side CO design authority, reviewing and challenging implementation partner solutions* Ensure SAP best practices, fit-to-standard and clean-core principles* Support cutover, go-live preparation, hypercare and knowledge transfer Requirements:* 8+ years of SAP CO experience and at least 2 end-to-end S/4HANA implementations or migrations* Strong hands-on expertise in S/4HANA CO Customizing, margin analysis and universal journal (ACDOCA)* Experience with selective data transition and bluefield migrations* Proven experience in SIT, UAT, defect management, cutover and hypercare* Strong knowledge of CO integration with FI, MM, SD and PP* Experience managing and quality-assuring external implementation partners Project Details:* Start: November* Duration: 6+ months, with the option to extend* Workload: 4-5 days per week* Location: Remote, 10% occasional on-site presence in Basel or other European locations* Language: English If you are interested in this project or can recommend a suitable consultant.