OneStream Technical Consultant / System Admin

La Fosse Associates; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A consulting firm in the UK is looking for a permanent OneStream Administrator & Finance Systems Specialist. This role requires managing the OneStream platform's daily operations, supporting month-end cycles, and improving financial processes. The ideal candidate should have a solid understanding of financial reporting and hands-on experience with OneStream. You'll work closely with finance and technical teams to ensure data accuracy and optimize system performance. This position offers an opportunity to influence finance systems for better efficiency.

Qualifications

• Strong understanding of financial processes such as consolidation, reporting, and budgeting.
• Hands-on experience with OneStream administration, configuration, or development.
• Ability to translate finance requirements into technical solutions.

Responsibilities

• Manage the daily operation, administration, and configuration of the OneStream platform.
• Support month-end and reporting cycles, ensuring data accuracy and system reliability.
• Develop and enhance OneStream functionality, including workflows and reports.

Skills

Financial processes understanding

OneStream hands-on experience

Translating finance requirements

Problem-solving

Job description

We are seeking a permanent OneStream Administrator & Finance Systems Specialist to take ownership of the day‑to‑day management, maintenance, and development of the OneStream financial consolidation platform. This role sits within the Data & Analytics team and works closely with both finance and technical stakeholders.

Key Responsibilities

• Manage the daily operation, administration, and configuration of the OneStream platform.
• Support month‑end and reporting cycles, ensuring data accuracy and system reliability.
• Develop and enhance OneStream functionality, including workflows, calculations, reports, and integrations.
• Act as the internal subject‑matter expert for finance systems, bridging the gap between finance users and technical teams.
• Troubleshoot issues, coordinate fixes, and optimise system performance.
• Work with external technical partners as needed for larger project‑based work.
• Contribute to continuous improvement across financial processes and reporting capabilities.

About You

• Strong understanding of financial processes such as consolidation, reporting, and budgeting.
• Hands‑on experience with OneStream (administration, configuration, and/or development).
• Ability to translate finance requirements into technical solutions.
• Comfortable working in a mixed team of data engineers, BI developers, and finance professionals.
• Proactive problem‑solver with a focus on quality and service.