Senior Internal Auditor

A Day in Your Life at MKS:

As a Sr. Internal Auditor at MKS Inc., you will support the company’s annual Sarbanes-Oxley (SOX) assessment and broader efforts to continuously improve the internal control environment. The Sr. Internal Auditor will independently manage assigned audit activities and collaborate with business and functional stakeholders, Internal Audit colleagues, and external auditors. The position will communicate audit results and control matters to process owners and management.

You Will Make an Impact By:
• Executing assigned areas of the annual SOX assessment, including risk assessment, scoping, control-design assessment, operating-effectiveness testing, issue evaluation, and remediation follow-up.
• Independently planning and executing audit procedures for assigned business processes while ensuring work is completed in accordance with Internal Audit methodology and professional standards.
• Preparing clear, accurate, and concise audit documentation, including test work papers, walkthrough narratives, and process flowcharts.
• Testing relevant business-process controls, application controls, key reports, and other control evidence based on defined audit objectives and test attributes.
• Identifying process and control gaps and develop practical, value-added recommendations to mitigate risk and improve control effectiveness and process efficiency.
• Communicating audit progress, observations, recommendations, and agreed corrective actions clearly to process owners and management.
• Monitoring corrective action plans and validate remediation of identified deficiencies, as appropriate.
• Collaborating with business and functional stakeholders, team members, and external auditors throughout the SOX assessment to support timely execution and effective coordination.
• Contributing to continuous improvement of audit methodology and execution through data analytics, automation, Optro utilization, process improvements, team knowledge sharing, and awareness of evolving SOX requirements and auditing standards.
• Participating in other Internal Audit engagements, as needed, including operational, site, process, or IT audits, to support the broader Internal Audit plan and organizational priorities.
• Travel Requirements:
Ability to travel occasionally to MKS locations globally

Skills You Bring:
• Bachelor's degree or above in Accounting, Finance, or related field. Professional certification, such as CPA or CIA, is preferred.
• 4+ years of relevant experience in internal audit, external audit, SOX compliance, or internal controls. Big Four, public-company, multinational-company, or manufacturing-industry experience is preferred.
• Experience with ERP systems such as Oracle or SAP is preferred.
• Strong knowledge of SOX 404 requirements, risk assessment, business-process controls, audit documentation, and control deficiency evaluation.
• Strong analytical, critical-thinking, project-management, and organizational skills, with attention to detail.
• Ability to independently manage multiple assignments, exercise sound judgment, meet deadlines, and escalate issues appropriately.
• Collaborative mindset and demonstrated ability to collaborate effectively within a global, cross-functional team and build productive working relationships with process owners and management.
• Strong written, verbal, interpersonal, and presentation skills, with the ability to communicate technical control matters clearly to both technical and non-technical audiences and translate audit observations into practical recommendations.
• Ability to travel occasionally to MKS locations globally.

Physical Demands and

Working Conditions:

• Perform activities such as sitting, standing, or typing for extended periods of time
• Regularly…