Full job description

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.