Group Reporting Accountant - OneStream Implementation

Report and Consolidation Accountant (OneStream Implementation) 6-month contract up to £600 (outside IR35)Altum Consulting are partnering with a high-growth, international business to recruit a Group Accountant confident supporting the OneStream system implementation. The RoleYou will play a key role in the design and delivery of a new group consolidation and reporting framework, ensuring that financial processes, controls, and structures are effectively embedded into OneStream.Working closely with finance, IT, and external implementation partners, you will help shape a scalable, high-quality reporting environment across the group.Key ResponsibilitiesFinancial Consolidation and ReportingSupport the design and configuration of group consolidation processes within OneStreamDefine and enhance statutory and management reporting outputsValidate consolidation logic, including intercompany eliminations, FX, and ownership structuresBuild and refine standardised financial statements, dashboards, and KPI reportingSystems Implementation (OneStream)Translate finance requirements into system design in collaboration with stakeholders and implementation partnersContribute to data integration, chart of accounts alignment, and metadata structuresSupport testing cycles (SIT/UAT), including test design, execution, and issue resolutionAssist in developing calculation rules, workflows, and reporting logicData and GovernanceEnsure accuracy and integrity of financial data across entitiesSupport the ..... full job details .....