Manager, General Ledger Systems

AAON, Inc.; Tulsa (OK); On-site; USD 110,000 - 180,000; Full time

Job summary

AAON, Inc. in Tulsa, OK is seeking a Manager of General Ledger Systems to own GL-related ERP functionality, master data, and financial hierarchies.

You will partner with IT and Accounting to ensure accurate reporting and a controlled close, while driving ERP projects and process standardization. You will lead initiatives to improve efficiency, automate manual tasks, and strengthen internal controls, with strong collaboration across Finance, IT, and Audit teams.

Qualifications

• Strong knowledge of general ledger processes and financial reporting.
• Experience leading ERP-related projects and upgrades.
• Familiarity with SOX controls and audit support.
• Ability to identify automation opportunities to improve efficiency and accuracy.

Responsibilities

• Serve as primary accounting systems owner for GL ERP functionality and master data.
• Lead cross-functional improvements to standardize processes and strengthen controls.
• Support monthly, quarterly, and annual close with system reliability and timely reporting.
• Coordinate UAT, issue resolution, and validation of system changes affecting accounting.
• Provide documentation and governance for system access and change management.

Skills

General Ledger ownership

ERP systems governance

Process improvement

Automation opportunities

Cross-functional collaboration

SOX compliance awareness

Education

Bachelor's degree in Accounting, Finance, Information Systems, or related field

Tools

SAP S/4HANA

Job description

Job Description: The Manager, General Ledger Systems serves as the functional owner for the systems, processes, and controls that support the General Ledger organization. This role partners across Accounting, Finance, and Information Technology to ensure financial systems operate effectively, support accurate financial reporting, and enable an efficient and controlled close process. The position leads accounting system enhancements, process standardization, automation initiatives, and ERP-related projects while maintaining compliance with internal control and audit requirements. This role provides leadership through subject matter expertise, project ownership, and cross-functional influence rather than direct people management.

Key Responsibilities

Accounting Systems Ownership

Serve as the primary accounting business owner for General Ledger-related ERP functionality, configurations, and financial master data. Maintain governance over chart of accounts structures, account mappings, cost centers, and other financial hierarchies. Partner with IT and system administrators to ensure accounting systems support operational and reporting requirements. Monitor and resolve accounting system issues impacting financial operations and reporting accuracy.

Process Management & Continuous Improvement

Lead process improvement initiatives across the General Ledger organization to increase efficiency, standardization, and control effectiveness. Identify and implement automation opportunities to reduce manual effort and improve the reliability of accounting processes. Develop and maintain process documentation, workflows, and standard operating procedures. Promote best practices for financial data governance and accounting process consistency.

Financial Close Enablement

Support the monthly, quarterly, and annual financial close by ensuring systems, interfaces, and automated processes function effectively. Partner with accounting leadership to identify and resolve process bottlenecks affecting close performance. Drive initiatives to improve close efficiency, reconciliation completion, and reporting cycle times. Support financial reporting and account reconciliation processes through effective systems management.

ERP & Project Leadership

Lead accounting participation in ERP upgrades, system enhancements, implementations, and related projects. Coordinate user acceptance testing (UAT), issue resolution, and validation of system changes affecting accounting processes. Evaluate the impact of proposed system changes on financial reporting and internal controls. Serve as the primary liaison between Accounting and IT on GL-related projects and initiatives.

Controls, Compliance & Audit Support

Maintain compliance with SOX and internal control requirements associated with financial systems and accounting processes. Support internal and external audits by providing documentation, testing support, and process explanations. Coordinate system access reviews, segregation-of-duties assessments, and change management controls. Partner with stakeholders to identify and remediate process or control deficiencies.

Cross-Functional Leadership

Lead cross-functional initiatives involving Accounting, FP&A, Tax, Internal Audit, Operations, and Information Technology. Influence process adoption and drive accountability among stakeholders without direct reporting authority. Communicate process changes, system enhancements, and project updates to leadership and business partners. Act as a trusted advisor on accounting systems, process governance, and automation opportunities.

Requirements

Education: Bachelor's degree in Accounting, Finance, Information Systems, or a related field required. CPA, CMA, MBA, or other relevant professional certification preferred.

Experience: 5+ years of progressive accounting, financial systems, financial reporting, or process improvement experience. Experience supporting month-end close and financial reporting processes. Experience leading cross-functional projects, system implementations, or process improvement initiatives. Experience working in a SOX-regulated environment preferred. ERP experience required; SAP S/4HANA experience strongly preferred.

Knowledge, Skills, and Abilities

Strong knowledge of accounting principles, financial reporting processes, and internal controls. Understanding of ERP systems, financial system integrations, and accounting workflows. Experience with automation, process improvement, and systems optimization initiatives. Strong analytical, problem-solving, and project management skills. Ability to influence stakeholders and lead initiatives without direct authority. Effective communication and relationship-building skills across technical and non-technical audiences. Proficiency with financial systems, reporting tools, and Microsoft Office applications.

Disclaimer: Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. This job description is not an exhaustive list of all functions that the employee may be required to perform, and the employee may be required to perform additional functions. The company reserves the right to revise this job description at any time. The employee must be able to perform the essential functions of the position satisfactorily. If requested, reasonable accommodations may be made to enable employees with disabilities to perform the essential functions of the job, absent undue hardship.

At AAON and BASX, we’re driven by a shared commitment to innovation, performance, and sustainability. Since 1988, AAON has been at the forefront of the HVAC industry, delivering cutting-edge solutions for commercial and industrial indoor environments. Since joining forces with AAON in 2021, BASX has built on that foundation with highly engineered, custom solutions for critical environments—including cleanrooms, data centers, and laboratories-where precision and reliability matter most. Together, we design and manufacture highly configurable systems tailored to each application, ensuring our customers achieve exceptional efficiency, performance, and long-term value. Join us in shaping smarter, more sustainable environments for the future.