OneStream Consultant; Senior​/Principal

One Stream Consultant (Senior / Principal) – EPM (Enterprise Performance Management), One Stream, Implementation, Consultant, Senior Consultant, Principal Consultant, Corporate Performance Management, CPM, Finance Transformation, Financial Systems, One Stream XF, Business Rules, Integration, Metadata, Workflow, Security, UAT, Troubleshooting, Consolidation, Financial Close, Planning, Budgeting, Forecasting, ESG, Reporting, Lease Accounting, FP&A, Scenario Modelling, Stakeholder Engagement, Solution Design, Pre-sales, Workshop, Mentoring, Remote, Hybrid, UK, £70,000 - £120,000 per annum

Catch Resource Management are delighted to be supporting a well-established UK One Stream partner consultancy, currently seeking both Senior and Principal One Stream Consultants to join their expanding UK team.

This is an excellent opportunity to work on complex, high-impact finance transformation programmes, helping clients optimise their consolidation, planning, forecasting, ESG reporting, and wider performance management processes. You’ll be instrumental in delivering innovative solutions across the full project lifecycle, working with senior stakeholders, mentoring junior colleagues, and ensuring lasting client success.

• 3+ years of hands‑on One Stream implementation experience (full lifecycle).
• Solid understanding of finance processes (close, consolidation, planning, forecasting, reporting).
• Good working knowledge of relational and multidimensional databases (e.g., SQL Server).
• Proven ability to lead workshops, gather requirements, and present solutions to business and technical stakeholders.
• Experience in UAT support, troubleshooting, and post‑go‑live enablement.
• Excellent communication and documentation skills.
• Relevant degree (Finance, Accounting, Computer Science, Information Systems, or related).
• One Stream certification(s) preferred; project management certifications desirable.

• Lead full lifecycle One Stream implementations, from design through to go‑live and optimisation.
• Build and maintain business rules, calculations, and integrations into One Stream.
• Translate business requirements into robust, scalable technical solutions.
• Deliver best‑practice configuration, workflow design, metadata management, and security setup.
• Support UAT, cutover, and go‑live, ensuring smooth client adoption.
• Provide training, documentation, and knowledge transfer to client teams.
• Assist with pre‑sales activities, including demonstrations and proof‑of‑concept builds.
• Mentor junior consultants and contribute to internal knowledge sharing.

Hybrid / Remote (UK)