Interim Systems Accountant

Job details

Posted Friday 23 October 2026
Job type Contract
Reference 4317
Recruiter Name Brian Poxon

Interim Systems Accountant – SAP Migration

6-Month Contract | Outside IR35 | Central London | Hybrid (3 Days Onsite)

We are working with a client in the final stages of a major SAP implementation. With the project scope recently reduced and go-live just 10 weeks away, they require an experienced Interim Systems Accountant to ensure financial data integrity, accurate reporting and a successful transition.

This is a hands-on assignment requiring someone who can bridge the gap between finance, systems and data.

The Role

Working closely with Finance, IT and operational teams, you will:

  • Reconcile system outputs to ensure the accuracy and completeness of financial data.

  • Support the transition and integration of data from the operational system into SAP.

  • Identify, investigate and resolve missing or incomplete data.

  • Map and validate data flows across systems, identifying gaps and opportunities for improvement.

  • Ensure SAP outputs feed accurately into Power BI for P&L and balance sheet reporting.

  • Troubleshoot reconciliation issues, data inconsistencies and reporting discrepancies.

  • Help establish robust, reliable financial reporting processes ahead of and following go-live.

About You

We are looking for a qualified accountant (ACA, ACCA or CIMA) with strong systems, data and financial reporting experience.

You will bring:

  • Proven experience in systems accounting, finance transformation or ERP migration projects.

  • Hands-on experience with Snowflake, Microsoft Fabric or Power BI.

  • Strong data flow mapping and reconciliation experience.

  • A good understanding of Bronze, Silver and Gold data architecture.

  • The ability to identify data quality issues and implement practical solutions.

  • Strong knowledge of P&L, balance sheet and financial reporting processes.

  • A proactive, solutions-focused approach and the ability to deliver within tight deadlines.

SAP implementation experience would be advantageous but is not essential.

The Assignment

  • Duration: 6 months

  • Location: Central London – 3 days onsite per week

  • Day Rate: Competitive – Outside IR35

  • Start: ASAP

This is an opportunity to play a key role in a business-critical systems transformation, ensuring the integrity of financial data and reporting as the business moves into SAP.

Interested? Get in touch for a confidential discussion.