OneStream Manager

We help partners understand the changing advertising landscape. Specialising in audience measurement, consumer targeting and in-depth intelligence into paid, owned and earned media, their global coverage and local expertise enable better understanding of media audiences and their relationships with brands.

Job Details

Fifty5Blue is a global leader in media measurement and analytics, operating in more than 80 countries.

We bring clarity to complexity. Our independent, hybrid cross-media audience measurement combines trusted audience panels with large-scale data to establish a single, coherent view across platforms and markets. This gives content owners, advertisers, agencies and platforms the clarity and confidence to develop content and plan advertising decisively.

With deep expertise across global media systems, we design integrated, comparable measurement frameworks that support a more consistent and accountable media market.

Job Title: OneStream Manager

Location: London
Employment Type: Permanent, full time
Department: Finance

* This is a full-time permanent position, based in our Hanger Lane office. We operate on a hybrid working arrangement and require a minimum of 2 days in the office. We welcome all applications from those with the legal right to live and work permanently in the UK, without requiring VISA sponsorship now or in the future.

Overview:

The OneStream Systems Manager will take full ownership of the OneStream EPM platform used for Group consolidation, reporting, and planning. Act as the primary liaison between Finance and Technology teams to ensure the platform meets evolving business needs. Drive the OneStream roadmap with system and reporting enhancements. Maintain data integrity and support key finance processes by managing configurations, integrations and user support. This role includes line management responsibilities with the OneStream analyst as a direct report.

Key Responsibilities:

Platform Maintenance

• Oversight of administration and maintenance activities (users, security, workflows, metadata, entities, accounts, UD dimensions, currencies and hierarchy integrity + data loads, mapping/transformation rules, and validations)
• Manage the OneStream upgrade process including regression testing
• Collaborate with ERP (D365) teams on data interfaces and mapping logic
• Stakeholder engagement central and local Finance teams, FP&A, IT and 3rd party suppliers
• Responsible for ensuring OneStream collateral is maintained (solution design/training materials/admin guide)

Platform Development

• Ownership of OneStream roadmap (driver-based planning, tax module, etc)
• Identify, and deliver automation opportunities and continuous improvements across Finance Systems
• Development of OneStream dashboards, cube views, and Excel Add-In reports

User Support

• Monitor OneStream Support service SLAs
• Provide advice / troubleshooting / support finance with month-end close, consolidation, reporting and audit cycles

Required Skills & Experience:

Essential

• Minimum 4 years hands-on experience with OneStream (admin/config/development)
• Strong proficiency in VB.NET skills (business rules, member formulas, automation).
• Solid understanding of OneStream consolidation, eliminations, and currency translation processes
• Experience in Budgeting & Forecasting with a good grasp of finance processes, data structures, data migration and integration workflows
• Proven experience with ERP integrations eg REST APIs, Flat file exchanges, or direct connectors
• Advanced Excel and OneStream Excel Add-In skills.
• Analytical mindset with high attention to detail and problem solving capabilities
• Excellent communication skills with the ability to collaborate effectively across finance and technical and teams

Desirable

• SQL, API, or ETL knowledge
• Experience with Microsoft Dynamics 365 F&O
• Accounting Qualification / QBE
• Experience with OneStream Marketplace solutions (Task Manager, People Planning, Account Reconciliations)
• OneStream certification (OCP)

Our offer

Our specialist expertise, pioneering technology and commitment to innovation provide the ideal environment for career growth.

Want to have a real-world impact? Help us deliver the trusted data that informs decisions in content and advertising across the world.

When you join us, you’ll gain the benefit of our global reach, advanced technical innovation and deep expertise. We’ll support you with training and career development opportunities. Become part of a community of passionate, dedicated professionals.

Why join Fifty5Blue?

We pride ourselves on understanding people, and what makes us think and act the way we do.

And because we know people, we like to make sure our own people are being looked after as well. Equality of opportunity for everyone is our highest priority and we support our colleagues to work in a way that supports their health and wellbeing. While we encourage teams to spend part of their working week in the office, we understand no one size fits all; our approach is flexible to ensure everybody feels included, accepted, and that we can win together. We’re dedicated to creating an inclusive culture and value the diversity of our people, clients, suppliers and communities, and we encourage applications from all backgrounds and sections of society. Even if you feel like you’re not an exact match, we’d love to receive your application and talk to you about this job or others at Fifty5Blue.

Privacy and Legal Statement

PRIVACY DISCLOSURE: Please note that by applying to this opportunity you consent to the personal data you provide to us to be processed and retained by Fifty5Blue. Your details will be kept on our Internal ATS (Applicant Tracking System) for as long as is necessary for the purposes of recruitment, which may include your details being shared with the hiring manager(s) and for consideration for potential future opportunities at Fifty5Blue. For full details of our privacy policy please visit https://www.fifty5blue.com/privacy-policies/fifty5blue-privacy-notice-for-candidates

Country

Why join Fifty5Blue?
We pride ourselves on understanding people, and what makes us think and act the way we do.

And because we know people, we like to make sure our own people are being looked after as well. Equality of opportunity for everyone is our highest priority and we support our colleagues to work in a way that supports their health and wellbeing. While we encourage teams to spend part of their working week in the office, we understand no one size fits all; our approach is flexible to ensure everybody feels included, accepted, and that we can win together. We’re dedicated to creating an inclusive culture and value the diversity of our people, clients, suppliers and communities, and we encourage applications from all backgrounds and sections of society. Even if you feel like you’re not an exact match, we’d love to receive your application and talk to you about this job or others at Fifty5Blue.