Solution Architect – SAP S/4HANA Public Cloud

Solution Architect - SAP S/4HANA Public Cloud Rate: £700/day (Inside IR35) Contract: 12 months Location: Hybrid - 2-3 days per week onsite in Enfield Start: September 2025 Salt is recruiting on behalf of a London Local Authority that is embarking on a major SAP transformation programme, replacing a 25-year-old ECC system with SAP S/4HANA Public Cloud and SuccessFactors. As Solution Architect, you will provide architectural leadership across Finance, HR, Payroll, and Procurement workstreams, ensuring the design and integration of a stable, scalable, and compliant solution that meets the needs of a complex public sector organisation. Key Responsibilities Lead the end-to-end solution architecture for SAP S/4HANA and SuccessFactors. Define and document the target architecture, covering integrations, security, and data migration strategy. Translate business and functional requirements into scalable SaaS designs. Oversee integration with legacy and third-party systems, ensuring performance and data integrity. Provide technical guidance through design, build, testing (SIT, UAT, Payroll Parallel Run), and cutover. Govern configuration workbooks, change control, and design decisions. Support role-based access control, GDPR compliance, and segregation of duties across Finance and HR. Collaborate with Absoft (implementation partner) and council stakeholders to ensure alignment with SAP best practice. Essential Experience Background as a SAP Solution Architect on S/4HANA and SuccessFactors programmes. Understanding of Finance, HR, Payroll, and Procurement (P2P) business processes. Knowledge of SAP Public Cloud and SaaS architecture. Experience defining data migration and integration strategies. Familiarity with SAP Activate methodology and agile delivery. Experience working in public sector or other regulated environments. Desirable Experience delivering SAP S/4HANA Public Cloud or hybrid deployments in the UK public sector. Knowledge of local government Finance, HR, and Payroll processes, including schools' payroll and grant accounting. Exposure to SuccessFactors and Payroll parallel run validation. Familiarity with SAP BTP, SAP Integration Suite, and Identity Access Management. Awareness of PSN, data protection, and information governance requirements in public sector environments. SAP certifications in relevant solution or integration areas (S/4HANA, Cloud, or BTP). Why Apply This is a major digital transformation programme with high visibility across the council, giving you the opportunity to shape an end-to-end SAP Public Cloud landscape from day one. *Rates depend on experience and client requirements