Senior Internal Auditor — SOX & Controls (Hybrid)

MKS Instruments, Inc.; Andover (MA); Hybrid; USD 88,000 - 147,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Parental leave

Tuition reimbursement

Adoption assistance

Stock programs

Job summary

MKS Instruments, Inc. is seeking an experienced Sr. Internal Auditor to support the annual SOX assessment and strengthen the internal control environment. The role will manage audit activities, collaborate with process owners and external auditors, and communicate findings with leadership.

You will plan and execute tests across business processes, prepare thorough documentation, and drive remediation efforts while continuously improving audit methodologies and analytics.

Qualifications

• Bachelor's degree in Accounting, Finance, or related field.
• 4+ years of internal audit, external audit, SOX compliance, or internal controls experience.
• Strong knowledge of SOX 404 requirements, risk assessment, business-process controls, and audit documentation.
• Experience with ERP systems such as Oracle or SAP.

Responsibilities

• Execute assigned areas of the annual SOX assessment, including risk assessment, scoping, control-design assessment, operating-effectiveness testing, issue evaluation, and remediation follow-up.
• Plan and execute audit procedures for assigned business processes per Internal Audit standards.
• Prepare clear audit documentation with test workpapers, narratives, and process charts.
• Test controls, reports, and evidence to meet audit objectives.
• Identify control gaps and craft practical recommendations to mitigate risk.

Skills

SOX compliance

Audit execution

Risk assessment

ERP systems

Analytical skills

Communication

Cross-functional

Project management

Education

Bachelor's degree in Accounting/Finance

Tools

Oracle

SAP

Job description

MKS Instruments, Inc. is seeking an experienced Sr. Internal Auditor to support the annual SOX assessment and strengthen the internal control environment. The role will manage audit activities, collaborate with process owners and external auditors, and communicate findings with leadership.

You will plan and execute tests across business processes, prepare thorough documentation, and drive remediation efforts while continuously improving audit methodologies and analytics.