Senior Auditor

Senior Auditor

(Senior Accountant/Auditor)

Salary may be negotiable within the range listed above, based on position requirements and successful candidate's qualifications, subject to appropriate authorization.

This recruitment will establish an open eligible list that will be used to fill current and future Senior Accountant/Auditor positions. The eligible list established may also be used to fill positions in similar and/or lower classifications throughout the County of Orange.

This recruitment will be open for a minimum of five (5) business days and will close on Friday, September 18, 2026 at 11:59PM (PST).

The mission of the Internal Audit Department (IAD) is to provide highly reliable, independent, objective evaluations and business and financial advisory services to the Board of Supervisors and County management to assist them with their important business and financial decisions, and to protect and safeguard the County’s resources and assets.

IAD supports and assists the Board of Supervisors and County management in the realization of their business goals and objectives by testing and reporting on the effectiveness of their internal control systems and processes. County management relies on these systems and processes for safeguarding the County’s assets and resources, reasonable and prudent financial stewardship, accurate recording and reporting, and achieving the County’s goals and objectives.

Internal Audit Department is seeking an experienced Senior Auditor. The Senior Auditor is mainly responsible for performing complex fieldwork for a variety of audit engagements, including performance audits, in accordance with professional standards and under the supervision of an audit manager. May lead other auditors per engagement. Audit tasks include planning (subject research, risk assessment), performing fieldwork (interviewing employees/managers, process walkthroughs, testing of transactions, and observations), and preparing engagement communications/reporting.

Audits are generally performed in the following areas:

• Information Technology (e.g., security, change management, application controls)
• Operational (e.g., financial, compliance, governance)
• Performance (e.g., evaluation of efficiency, effectiveness, and economy of operations)
• Special Audits (e.g., Directed by the Board of Supervisors)

In addition to the minimum qualifications, the ideal candidate will possess at least 2 years of audit experience. A valid Certified Public Accountant (CPA) license, Certified Internal Auditor (CIA), Certified Information Systems Auditor (CISA), and/or Certified Fraud Examiner (CFE) certification is highly desired, but not required.

• Experience planning and conducting complex audit and advisory engagements, identifying key risks and controls, monitoring project plans to ensure delivery in accordance with agreed timelines, and preparing/reviewing work papers for accuracy and completeness
• Experience selecting and applying the appropriate tools and techniques for data gathering, analysis and interpretation, and reporting
• Understands the concepts of Committee of Sponsoring Organizations of the Treadway Commission (COSO) Internal Control – Integrated Framework during audit activities
• Knowledge of the technical aspects of financial, managerial, and cost accounting concepts, standards, systems, and reporting processes appropriate to audit engagements
• Knowledge of performance audit methodologies
• Experience applying performance audit standards to evaluate operational efficiency, effectiveness, and economy, including developing…