Senior Systems & UAT Accountant – OneStream Expert

Company: Howden Group Services Limited
Apply for the Senior Systems & UAT Accountant – OneStream Expert
Location: Milton Keynes
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.

#J-18808-Ljbffr…

Posted: October 30th, 2026