Internal Audit Manager

The Internal Audit Manager is responsible for leading and executing a broad range of internal audit activities, including operational, plant-level, and process-focused audits. This role oversees SOX testing for business process and IT controls, partners with the SOX PMO on deficiency evaluation and remediation, and drives continuous improvement of the SOX program. The position also coordinates with external auditors, supports opportunities to streamline and automate controls, and provides coaching and development for audit staff.

• Lead and perform internal audit engagements, which may include operational, plant-level, or process-focused audit from planning, fieldwork, reporting, and follow-up.
• Steers the team to deliver concise work papers, audit reports, and audit memos that meet the Quality Assurance and Improvement Program (QAIP) requirements.
• Identify and support opportunities to automate and streamline SOX processes and controls.
• Review work papers and audit deliverables to ensure quality, accuracy, and adherence to internal audit standards.
• Oversee the design and execution of SOX testing for business process controls and, where applicable, IT general and application controls.
• Partner with the SOX PMO team to evaluate control deficiencies, assess severity, and work with management on remediation plans and timelines.
• Drive continuous improvement of the SOX program, with a focus on efficiency, consistency, and alignment to operational risk.
• Serve as the primary liaison with external auditors and coordinate reliance on SOX testing, inventory observations, and manage direct assist activities.
• Manage, coach, and develop audit staff, including performance management and ongoing feedback.

• Bachelor’s degree in Accounting, Finance, Business, or a related field.
• One of the following certifications is required: CPA, CIA, CISA or other relevant professional certification.
• 5+ years of experience in public accounting and/or internal audit, preferably within a manufacturing or multi-location environment.
• Strong knowledge of SOX requirements, internal controls, and internal audit methodology.
• Experience coordinating with external auditors, including reliance and direct assist capacity.
• Strong communication and project management skills
• 10-20% travel

• Experience using SOX or GRC platforms (e.g., Workiva or similar).
• Big 4 or national public accounting firm experience.
• At least 2 years of supervisory or management role
• Strong interpersonal skills for interfacing with all levels of management

Celanese is a global leader in chemistry, producing specialty material solutions used across most major industries and consumer applications. Our businesses use our chemistry, technology and commercial expertise to create value for our customers, employees and shareholders. We support sustainability by responsibly managing the materials we create and growing our portfolio of sustainable products to meet customer and societal demand. We strive to make a positive impact in our communities and to foster inclusivity across our teams.

Celanese Corporation employs more than 11,000 employees worldwide with 2024 net sales of $10.3 billion. For more information about Celanese Corporation and its product offerings, visit