Senior Internal Auditor
Generac • Waukesha, Wisconsin • Full Time
Posted on Thu, Oct 15, 2026
We believe power is a promise - a shared commitment to be there for others when it matters most.
For more than 65 years, we've turned big ideas into solutions that help protect homes, strengthen businesses and build a more resilient, efficient, sustainable energy future.
Ready to Power a Smarter World with us?
The Senior Internal Auditor is responsible for planning, executing, and leading internal audit and advisory engagements across a global manufacturing organization. The role provides independent, objective assurance and insight to improve operations, strengthen internal controls, and support risk management and governance processes.
This position plays a key role in:
- Leading end-to-end audit engagements (risk assessment through reporting)
- Supporting the organization’s SOX compliance program
- Identifying control gaps, operational inefficiencies, and risk exposures
- Collaborating with global business units and functional leaders
The Senior Internal Auditor also contributes to continuous improvement initiatives and may audit staff.
Major Responsibilities
- Audit Execution & Leadership
- Lead audit planning, scoping, and risk assessment activities for assigned engagements
- Develop and execute risk-based audit programs
- Perform and/or oversee detailed testing of controls and transactions
- Ensure timely completion of audits
- Reporting & Issue Management
- Draft clear, concise audit findings, including root cause analysis and practical recommendations
- Present results to management and support development of remediation plans
- Track and validate corrective actions
- SOX Compliance & Internal Controls
- Participate in annual SOX risk assessment and scoping
- Execute and/or review SOX control testing and evaluate design and effectiveness
- Support year-end reporting and coordination with external auditors
- Advisory & Special Projects
- Provide advisory support on business initiatives
- Conduct targeted reviews, investigations, or data analytics projects
- Stakeholder Engagement & Continuous Improvement
- Build effective relationships with global stakeholders across finance, operations, and IT
- Support Audit Committee and senior leadership reporting as needed
- Contribute to internal audit methodology enhancements and best practices
- Mentor junior auditors
Minimum Job Requirements
Education
- Bachelor’s Degree with a focus in Accounting, Finance, Information Technology, or other relevant business discipline
Work Experience
- 3 years of internal audit, public accounting, or relevant finance/accounting experience
Knowledge / Skills / Abilities
Technical Knowledge
- Strong understanding of:
- Internal controls frameworks (COSO)
- SOX compliance requirements
- Financial reporting and accounting principles
Analytical & Problem-Solving Skills
- Ability to assess complex processes, identify risks, and evaluate control effectiveness
- Strong data analysis capabilities with attention to detail
- Critical thinking and professional skepticism
Communication & Interpersonal Skills
- Excellent written and verbal communication skills
- Ability to clearly articulate audit issues and recommendations to all levels of management
- Strong stakeholder management and influencing skills
Project Management & Leadership
- Ability to manage multiple audits and priorities simultaneously
- Experience leading audit engagements and providing direction to team members
- Strong organizational and time management skills
Preferred Job Requirements
Education
- Master of Business Administration (MBA)
Certification / License
- Certified Internal Auditor (CIA), Certified Public Accountant (CPA),
- Certified Information Systems Auditor (CISA),
- Certified Fraud Examiner (CFE), or other relevant professional certification
Work Experience
- Audit experience in public accounting or within a global manufacturing firm
Knowledge / Skills / Abilities
- Familiarity with IIA Global Standards
- Familiarity with ERP systems
- Experience with data analytics and/or AI software
- Familiarity or past experience with audit, SOX, or other GRC software platforms
- Familiarity with financial consolidation software
- Familiarity with manufacturing and supply chain processes
Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion, the incumbent may be required to stoop, bend, or reach above the shoulders. The employee must occasionally lift up to 25 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision, and the ability to adjust focus. Occasional travel.
“We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any other characteristic protected by law.”
AuditFriendly salary estimate
The employer did not post a salary for this role. Based on AuditFriendly's salary intelligence model (comparable live postings, role, seniority, and location), we estimate base pay of $99,000–$117,000 per year (median ~$107,000). This is an AuditFriendly estimate, not an employer-provided figure.
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What the data says about this job
- Advertised pay for Senior Internal Auditor: a median of $100,218 across 386 priced postings. Explore the market
- Generac's roles typically close in 36 days; the market median is 14 days. Time to close
- 8% of Generac's 13 tracked postings are more than six months old. Posting hygiene
Measured from employers' own postings and public filings. How we measure