Senior Manager, OneStream Financial Accounting Systems

About the role

The Senior Manager, OneStream Financial Accounting Systems serves as a senior functional leader with strong technical fluency within the OneStream Center of Excellence (CoE). This position operates with broad cross-functional visibility, engaging directly with senior Finance, Accounting, and Tax leadership to shape system strategy and execution. It is ideally suited for a professional seeking to transition from consulting to long-term platform ownership, emphasizing sustained impact, governance leadership, and reduced travel.

Responsibilities

• Serve as the functional owner for the Financial Accounting domain within the OneStream CoE, ensuring the platform’s ongoing optimization and strategic alignment with enterprise financial processes.
• Oversee consolidations, reporting, and related financial accounting processes in OneStream while driving continuous improvement, automation, and standardization.
• Lead the team providing Level 1 and 2 support during close cycles and coordinate across functional teams for issue resolution.
• Ensure compliance with accounting standards, SOX controls, and internal governance policies.
• Drive transformation and automation initiatives to streamline consolidation, close, and reporting processes in alignment with enterprise financial strategy.
• Partner with developers to validate, test, and document business rules, data integration, and workflow changes.
• Lead and contribute to OneStream governance frameworks, ensuring alignment across metadata, hierarchies, chart of accounts, and reporting structures while driving standardization and consistency across all accounting processes (including master data coordination between Hyperion DRM and OneStream).
• Create and maintain user documentation, training materials, and process flows for the Accounting and Reporting domains.
• Function as liaison between 50+ Operating Unit’s Accounting functions and Corporate, including Consolidations, External Reporting, Corporate and Divisional Accounting, FP&A and Tax teams to translate business needs and processes into solutions.
• Lead and participate in cross-functional teams and third-party vendors to deliver high-quality solutions within defined timelines and budgets.
• Cook up with the Senior Manager, OneStream Forecasting & FP&A Systems to ensure data integrity across planning and reporting modules.

Requirements

• 10+ years of progressive experience in finance, accounting, and financial systems management.
• Minimum of 6 years working directly with financial systems management or implementations and 5+ years with a large public multinational organization.
• Experience working within or supporting corporate accounting departments is preferred.
• Bachelor’s degree or higher in Accounting, Finance, Information Systems, or related field required; CPA preferred, not required.
• Strong accounting background or substantial experience supporting accounting and finance functions.
• Direct accounting experience preferred.
• Ability to manage multiple priorities in a fast-paced growth environment.
• Experience in SOX-compliant environments preferred.
• Direct experience using OneStream or similar Corporate Performance Management (CPM) application required.
• Candidates should have a strong understanding of dimensionality, metadata management, and experience with data integration, validation, and reporting processes.
• Familiarity with SQL and VB scripting are a definite plus.
• High level of Excel proficiency.

Qualifications

• Excellent communication, collaboration, and analytical abilities.
• Licenses / Certifications Preferred: Licenses / Certifications CPA OneStream or Equivalent CPM Application Certification (Administrator, Architect, etc.).

Skills

• Ability to bridge the gap between technical teams and accounting and finance functions.
• Demonstrates urgency and accountability in meeting deadlines and quality standards.
• Exceptional problem solving, analytical and communication skills.
• Ability to lead and develop the Center of Excellence support team.
• Detail oriented with a focus on data integrity and compliance.
• Demonstrates leadership in change management and process improvement.
• Ability to work flexible hours during critical reporting periods.
• Proactively identifies issues and leads their resolution, whether individually or coordinating with others.

Benefits

Quanta actively promotes and maintains a culture of belonging where all employees can be themselves, live their values, and find opportunities to succeed. When you join our team, you join a dynamic organization in which career development is encouraged, excellence is rewarded, and diversity is prized. Come find out how our people power modern life.

Pay

Compensation is competitive and commensurate with experience. Please refer to the job description for details.

Schedule

Flexible work schedule to accommodate the needs of the role and the company. Please refer to the job description for details.