SaaS Systems Manager

SaaS Systems Manager D365 F&O – 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’ll 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. Essential Skills & Experience • 3+ years’ experience with OneStream, Dynamics 365, Hyperion, or similar finance systems. • Must have direct experience with D365 (Ideally F&O) • Strong understanding of consolidation, accounting processes, and global financial structures. • Experience with PowerBI and Python. • Excellent Excel, analytical, communication, and project management skills. Desirable • Degree in Finance, Accounting, Business, or Information Systems. • Accounting qualification (ACA/ACCA/CIMA). • Experience in multinational organisations and IFRS/GAAP frameworks. • OneStream or CPM certifications. • Reval TMS Package • £85–105k base (DOE) • Hybrid working (City of London) • Health insurance, pension, and professional development SaaS Systems Manager D365 F&O – Financial Services