Air Charter Service is embarking on a significant global finance transformation, implementing SAP S/4HANA Public Cloud across our international business. We are looking for an experienced SAP Systems Accountant to play a key role in this journey. This is an excellent opportunity for an accountant or finance systems professional who has been involved in SAP S/4HANA implementation or transformation programmes and is looking to broaden their experience in a fast-paced, global environment. This role offers significant exposure to senior stakeholders and the opportunity to make a lasting impact on how finance operates across the ACS Group. As a key member of the accounts transformation team, duties will include but are not limited to:  • Support the implementation and rollout of SAP S/4HANA Public Cloud across multiple group entities. • Assist with data gathering, cleansing, validation, and migration activities. • Support the configuration and localisation of finance processes within SAP. • Perform system testing, user acceptance testing (UAT), and scenario-based process testing. • Assist with chart of accounts mapping, financial workflows, and system integrations. • Support the development of finance reports, process documentation, and training materials. • Provide user support during deployment, go-live, and post-implementation stabilisation. • Work closely with Finance, IT, and external implementation partners to resolve issues and improve processes. • Assist in the development of controls, security access, and segregation of duties (SoD) requirements. • Contribute to continuous improvement initiatives and support the transition to business-as-usual system support Essential • Proven experience working on SAP S/4HANA implementation, transformation or migration programmes. • Qualified or part-qualified accountant (ACA, ACCA, CIMA or equivalent) or significant experience within Finance Systems. • Strong understanding of core finance processes including General Ledger, Accounts Payable, Accounts Receivable, Fixed Assets and financial reporting. • Experience supporting data migration, testing, system configuration and user training. • Advanced Excel skills with the ability to analyse and reconcile large datasets. • Strong analytical and problem-solving capabilities. • Excellent stakeholder management and communication skills, with the ability to work effectively across Finance, Technology and project teams. Desirable • SAP S/4HANA Public Cloud implementation experience. • Experience designing workflows and business processes. • Experience with reporting tools, SQL or data-querying experience. • Experience supporting multinational finance operations. • Understanding of SAP security, user roles and access management. • 12 month Fixed Term Contract (potential to be extended/ permanent) • 22 days annual leave (excluding bank holidays) • Free onsite gym with weekly classes  • Free breakfast, lunch and snacks in our onsite canteen "The Hangar"  • Private healthcare and pension • 2x giving back days per year