Senior Manager, Financial Systems

Position Overview

MP Materials is seeking a dynamic and technically skilled Senior Manager, Financial Systems to lead the strategic development, optimization, and administration of our financial systems landscape, including, but not limited to, SAP S/4HANA, OneStream, and BlackLine. This role is critical to scaling our financial operations as we expand manufacturing capabilities and global operations.

Position Responsibilities

• Lead the administration, enhancement, and governance of financial systems including SAP S/4HANA, OneStream, BlackLine, and other systems and related tools.
• Act as primary liaison between Finance, IT, and external vendors to manage system changes, troubleshoot issues, and implement upgrades.
• Identify and drive automation opportunities in core finance and accounting processes.
• Lead system and process enhancements and support major projects such as ERP implementations, module expansions, and integrations across systems.
• Develop and maintain robust documentation of business processes, configuration decisions, and control procedures.
• Train finance users on systems functionality and best practices; serve as a subject matter expert on data structures and reporting logic.
• Lead master data governance across finance-related domains, establishing policies, workflows, controls, and stewardship to improve data quality and standardization.
• Support external audits, SOX compliance, and internal control testing related to financial systems.
• Monitor and enforce user access, change control, and segregation of duties across systems.

Basic Qualifications

• Bachelor’s degree in Accounting, Finance, Information Systems, or related field.
• 7+ years of experience in financial systems management, financial transformation, or accounting systems administration.
• Strong hands-on experience with SAP S/4HANA (FI/CO and related modules) and OneStream (or similar CPM tools such as Hyperion, Tagetik).
• Demonstrated success leading finance system implementations, upgrades, or integrations.
• Excellent analytical, project management, and cross-functional communication skills.

Desired Qualities

• CPA, CMA, or MBA preferred.
• Public company experience in manufacturing, energy, or industrial sectors.
• Experience implementing financial automation tools (e.g., BlackLine, Coupa, FloQast).
• Deep understanding of accounting workflows, month-end close, and consolidation/reporting requirements.
• Familiarity with data warehousing concepts, reporting cubes, and financial master data governance.
• Proactive, hands-on leader with a track record of delivering practical solutions in a fast-paced environment.