SAP S2P Solution Architect

Position: SAP S2P Solution Architect Employment Type: Contract Start: ASAP (September/October 2026) Duration: 6 Months Location: London, UK (Office based) Language(s): English Focus on SAP is a specialist SAP and ERP Recruitment organisation offering both permanent and contract staffing solutions on a global scale. Client – Partnered with a global leader in digital transformation and IT services, working with some of the world’s biggest brands. Their mission is not only to deliver cutting-edge technology but also to empower organisations to create meaningful impact for the people and communities they serve. For you, this means working on challenging projects that demand innovation, collaboration, and thought leadership . Role – We are seeking an experienced SAP Source-to-Pay (S2P) Solution Architect to own the end-to-end architecture across a major Procurement and Finance transformation . This senior role requires deep expertise across SAP S/4HANA, SAP MM, SAP Ariba, SAP Concur and OpenText/SAP VIM , covering the complete Source-to-Pay lifecycle from Sourcing and Contract Management through Procure-to-Pay (P2P), Invoice Processing, Expenses, Payments and Reporting . You will act as the S2P design authority , defining scalable and integrated solutions across Procurement and Finance while ensuring alignment with enterprise architecture, security, financial controls, data governance and regulatory requirements. Key Responsibilities • S2P Solution Architecture • Own the end-to-end Source-to-Pay architecture across Sourcing, Contracts, Procurement/P2P, Invoice Processing, Expenses, Payments and Reporting . • Design integrated solutions across SAP S/4HANA, SAP MM, SAP Ariba, SAP Concur and OpenText/SAP VIM . • Define scalable architecture patterns across procurement, invoice automation and expense management , driving standardisation and reuse. • SAP & Platform Integration • Design and govern integrations across SAP S/4HANA MM/FI, Ariba Buying & Invoicing, Ariba Sourcing, Ariba Contracts, Concur and VIM . • Define end-to-end master data, transactional data and financial posting flows across the S2P landscape. • Ensure robust and auditable 3-way matching, invoice processing, financial postings and expense accounting . • Procurement, Finance & Controls • Partner with Procurement, Finance, Accounts Payable and Tax stakeholders to translate complex business requirements into effective solution designs. • Architect approval workflows, tolerances, controls and exception handling , ensuring alignment with procurement policies and financial controls. • Ensure solutions meet audit, security, compliance and regulatory requirements , including SOX and GDPR where applicable. • Architecture Governance & Delivery • Act as the design authority for S2P , reviewing and approving solution designs, functional specifications and integration documentation. • Provide architecture governance across System Integrators, vendors and internal delivery teams , driving consistency across programmes and releases. • Provide architecture oversight throughout build, testing, cutover, go-live and post-production , managing risks and ensuring solution integrity. Key Skills • 7–10+ years’ SAP S2P / Procurement / Finance experience , with proven responsibility for complex end-to-end solution architecture. • Deep expertise across SAP S/4HANA, SAP MM, SAP Ariba, SAP Concur and OpenText/SAP VIM , with a strong understanding of how these platforms integrate across the S2P lifecycle. • Strong end-to-end knowledge of Source-to-Pay (S2P), Source-to-Contract (S2C), Procure-to-Pay (P2P), Accounts Payable, Invoice Management and Travel & Expense processes. • Strong SAP Ariba expertise across Buying & Invoicing, Sourcing and Contracts , integrated with S/4HANA procurement and Finance. • Proven experience designing complex SAP and SaaS integrations , including master data, transactional data and financial posting flows. • Deep understanding of invoice processing, 3-way matching, AP, financial postings, approval workflows, tolerances and financial controls . • Strong architecture governance capability, with experience acting as a Solution / Design Authority across complex enterprise programmes and multi-vendor delivery environments. • Excellent stakeholder management skills, with the ability to engage senior stakeholders across Procurement, Finance, AP, Tax, Technology and Architecture . If you are interested or would like to know more, please email jonathan.la@focusonsap.org with your CV and availability to speak. Applicants must be UK residents with a valid right to work in the UK.