Senior Systems & UAT Accountant – OneStream Expert

Howden Group Holdings; Milton Keynes; On-site; GBP 55,000 - 70,000; Full time

Benefits offered by this job

Hybrid working

Reasonable adjustments

Job summary

Howden Group Services Limited is seeking a qualified accountant to lead the UAT testing for a OneStream rebuild within the Divisional Finance team. You will coordinate testing across Specialty and Reinsurance, manage reconciliation across cubes, and support improvements to month-end close and forecasting cycles.

You will collaborate with UK and overseas FP&A and subsidiary finance teams, using strong Excel and data manipulation skills to drive efficient reporting and budgeting processes.

Qualifications

• Qualified accountant (ACA/ACCA) with at least 5 years PQE.
• Experience with OneStream or similar financial consolidation system.
• Strong Excel skills and data manipulation capabilities.

Responsibilities

• Lead UAT design and testing coordination for the OneStream rebuild.
• Coordinate Sprint UAT, E2E UAT and Business Acceptance testing.
• Support reconciliation processes between cubes in OneStream.
• Assist with month-end close improvements in Specialty/Reinsurance.
• Collaborate with FP&A teams and subsidiary finance across regions.

Skills

Strong Excel skills

Numerate

Data manipulation

Multitasking under deadlines

Train others on systems

Education

ACA or ACCA

Tools

OneStream

Workday integration

Job description

Howden Group Services Limited is seeking a qualified accountant to lead the UAT testing for a OneStream rebuild within the Divisional Finance team. You will coordinate testing across Specialty and Reinsurance, manage reconciliation across cubes, and support improvements to month-end close and forecasting cycles.

You will collaborate with UK and overseas FP&A and subsidiary finance teams, using strong Excel and data manipulation skills to drive efficient reporting and budgeting processes.