OneStream Project Manager in London - Marks Sattin

A growing international group is embarking on a major finance transformation programme and is looking for an experience Project Manager to lead the implementation of OneStream as their new financial consolidation and reporting platform.

This is a highly visible role where you'll take ownership of the end-to-end delivery of a multi-entity transformation, working closely with senior finance stakeholders and technical teams to shape the future of the organisation's financial processes.

As OneStream Project Manager, you will be:

• Leading the full OneStream implementation lifecycle, from planning and design through to testing and deployment.
• Managing a cross-functional project team, including internal resources and external implementation partners.
• Overseeing the migration of finance data to the cloud, ensuring accuracy and compliance.
• Driving the rebuild of consolidation and reporting models, aligning them with business requirements.
• Managing project timelines, budgets, and stakeholder communications.
• Acting as a trusted advisor to finance leadership, ensuring the solution meets both operational and strategic needs.

Requirements:

• ACA, ACCA, CIMA qualified or equivalent.
• Experience managing large, complex finance systems projects, ideally within the consolidation and reporting space.
• Hands-on delivery experience with OneStream or a comparable system (e.g. Hyperion, TM1, HFM).
• Strong understanding of financial consolidation, management reporting, and group finance processes.
• Excellent stakeholder management skills.

This role is outside IR35.

Apply ASAP to be considered for this OneStream Project Manager role.

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