Interim SAP S/4HANA Finance Systems Accountant

About the role

We are seeking an interim Systems Accountant to support a leading business in South East England. The role focuses on ensuring the accuracy and integrity of financial data during an SAP S/4HANA migration and ongoing system enhancements. Based in Harlow, you will work closely with finance and IT teams to deliver a seamless transition to the new ERP platform.

Key responsibilities

• Document processes, testing outcomes and issues encountered during migration, providing clear reporting to project teams and stakeholders.
• Collaborate with finance, IT and other cross‑functional teams to ensure successful migration and compliance with accounting standards.
• Lead preparation and validation of data for migration, ensuring consistency, completeness and accuracy between legacy and new ERP systems.
• Identify and resolve discrepancies, duplicates or inaccuracies within financial and operational data.
• Standardise, cleanse and verify existing datasets to support a smooth ERP transition.
• Maintain and safeguard master data files, overseeing proper movement and integration of data across systems.

Required profile

• Experience working with SAP S/4HANA or other ERP systems.
• Hands‑on experience with finance systems implementation or in a systems accountant role.
• Proven background in data cleansing, migration or large‑scale data entry projects.
• Eligibility to work in the United Kingdom.

Required skills

• SAP S/4HANA