financeroles

SAP Systems Support Accountant - 12m FTC

Mountfitchet Group Open · verified Oct 22, 2026
On-site Surbiton Contract Mid-level Accounting

At a glance

Mid-level Accounting role at Mountfitchet Group. Surbiton · contract · £65,000–£70,000 base.

SalaryStated by Mountfitchet Group
£65,000 – £70,000
Base salary for this role, in GBP per year, as published in the posting.
RoleAccounting
SeniorityMid-level
LocationSurbiton
WorkplaceOn-site
EmploymentContract
Base pay£65,000–£70,000
PostedOct 7, 2026 · 2w ago
Role brief

financeroles summary, based on the employer's posting.

What you'll do

  • Help roll out SAP S/4HANA Public Cloud across group entities, including finance setup and local process changes
  • Prepare financial data for migration by gathering, cleaning, checking and reconciling datasets
  • Run system, user acceptance and scenario tests, then help resolve issues with Finance, IT and implementation partners
  • Support users through deployment and stabilisation, and prepare finance reports, process guides and training materials
  • Contribute to chart of accounts mapping, financial workflows, system integrations and access controls

What you bring

  • You have worked on SAP S/4HANA implementation, transformation or migration projects
  • You are a qualified or part-qualified accountant, or bring significant finance systems experience
  • You understand core finance processes such as general ledger, payables and receivables
  • You can analyse and reconcile large datasets using advanced Excel

Who this fits

This mid-level, twelve-month contract suits an accountant or finance systems professional with SAP S/4HANA project experience. The role is onsite in Surbiton; the contract may be extended or become permanent.

From the employer

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