Finance Systems Manager – Financial Services
A leading financial services organisation is seeking an experienced SaaS Systems Manager to oversee and optimise their finance technology landscape. Reporting to both the IT Director and Group Finance & Strategy Director, you will support core finance systems, drive process improvements, and partner closely with global finance teams.
Role & Responsibilities
* Own and manage OneStream and Microsoft Dynamics D365 in line with Finance and IS standards.
* Maintain legal entity hierarchies, system configurations, access controls, and user permissions.
* Partner with accounting teams to resolve D365 issues and ensure smooth daily operations.
* Extract data and perform ETL tasks; manage integrations and data flows between systems.
* Gather and document business requirements for new functionality, modules, and localisation.
* Lead testing, validation, system changes, and workshops with finance and IT teams.
* Support integration of new business units into the company’s financial systems.
* Build dashboards, reports, workflows, and enhance financial processes in OneStream and D365.
* Maintain group COA, create new entities/dimensions, and align mapping with local finance leads.
* Liaise with finance teams, auditors, and stakeholders to ensure systems meet reporting needs.
* 3+ years’ experience with OneStream, Dynamics 365, Hyperion, or similar finance systems.
* Strong understanding of consolidation, accounting processes, and global financial structures.
* Experience with PowerBI and Python.
* Excellent Excel, analytical, communication, and project management skills.
* Degree in Finance, Accounting, Business, or Information Systems.
* Experience in multinational organisations and IFRS/GAAP frameworks.
* OneStream or CPM certifications.
* Reval TMS
Package
* Hybrid working (City of London)
* Health insurance, pension, and professional development
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