Finance Systems Manager – Onestream

Finance Systems Manager – OneStream SME

Salary: ££70,000 – £80,000 per annum + Bonus & Benefits
Location: Central London / Remote Options

We are working with a PE-backed business looking to appoint a Finance Systems Managger to support the development, optimisation and governance of its Finance Systems environment.

This is a hands-on role suited to a qualified accountant with strong Finance Systems experience, particularly across OneStream.

Key Responsibilities

• Act as an OneStream SME, supporting system development, optimisation and governance.


• Own or contribute to OneStream implementation projects from a Finance perspective.


• Support consolidation, reporting, planning and wider Finance processes.


• Work across OneStream, NetSuite, Databricks, Navan and Power BI.


• Support data mapping, reconciliation, master data and reporting structures.


• Identify opportunities to automate and improve Finance processes.


• Work closely with Finance, Systems and wider business stakeholders.

About You

• Qualified Accountant – ACA, ACCA, CIMA or equivalent.


• 5+ years’ experience across Finance Systems / Finance Transformation.


• Strong OneStream experience, ideally having owned part of an implementation.


• Good understanding of financial reporting, debits & credits and BAU Finance processes.


• Strong communication and stakeholder management skills.


• NetSuite experience is advantageous.


• Exposure to Data Warehousing / MDM would be beneficial.

This is an excellent opportunity for a qualified accountant looking to combine Finance, Systems, Data and Transformation within a growing PE-backed business.