Senior Finance Systems Accountant

Senior Finance Systems Accountant - OneStream SME
Salary: £65,000 - £70,000 + Bonus & Benefits
Location: Central London / Hybrid & Remote Options
We are working with a PE-backed business looking to appoint a Senior Finance Systems Accountant 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.

Work arrangement
Yes