Senior Manager, OneStream Financial Accounting Systems

About Us

Every moment of every day, people around the world rely on the energy they access through infrastructure built by Quanta. Comprising the largest skilled-labor force in North America, our employees are highly skilled and innovative, continually working to connect people and power. We’re building the infrastructure that supports the energy transition, and there are more opportunities than ever to be part of our team. Join us and build your career building a brighter future.

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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.

About this 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. This role leads the support, optimization, and enhancement of, and drives continuous improvement, automation, and the ongoing evolution of the OneStream platform’s Financial Accounting domain, encompassing Consolidations, Financial Reporting (External and Managerial), Job Reporting and Analysis / POC Accounting. The Senior Manager collaborates closely with Consolidations, Corporate Accounting, FP&A, Tax, and others to ensure accuracy, compliance, and efficiency in financial close and reporting processes. This role also contributes to the CoE’s data and metadata governance frameworks and drives the ongoing evolution of processes, automation, and system standards across the organization. This role reports to the Director of Financial Systems and provides leadership across the Financial Accounting domain, fostering collaboration, governance discipline, and continuous improvement within the OneStream Center of Excellence.

What You'll Do

• 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.

• Coordinate with the Senior Manager, OneStream Forecasting & FP&A Systems to ensure data integrity across planning and reporting modules.

What You'll Bring

• 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.

• Soft Skills: Excellent communication, collaboration, and analytical abilities.

Licenses / Certifications

Preferred Licenses / Certifications

• CPA

• OneStream or Equivalent CPM Application Certification (Administrator, Architect, etc.)

Key Performance Indicators (KPIs)

• System stability and data accuracy across financial accounting domains.

• Compliance with governance standards and SOX documentation.

• Continuous improvement across financial processes, demonstrated through reduced consolidation and reporting cycle times.

• End-user satisfaction and training adoption rates.

• Maintain SLA compliance for issue resolution and system support.

• Contribution to process improvement and automation initiatives.

Competencies

• 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.

Equal Opportunity Employer

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, national origin or ancestry, sex (including gender, pregnancy, sexual orientation, and/or gender identity), age, disability, genetic information, veteran status, and/or any other basis protected by applicable federal, state or local law.We are an Equal Opportunity Employer, including disability and protected veteran status.We prohibit all types of discrimination and are committed to providing access and equal opportunity for individuals with disabilities. For additional information or if reasonable accommodation is needed to participate in the job application, interview, or hiring processes or to perform the essential functions of a position, please contact us the Company’s Human Resources department.

ID2025-12296

CategoryAccounting & Finance

Position TypeFull-Time Regular

LocationUS-TX-Houston

Workplace TypeOn-Site