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Senior Internal Auditor

MKS Instruments


Job Location:

Andover, KS - USA

Yearly Salary: USD 88425 - 147375
Posted: 20 September 2026 (22 hours ago)
Application Deadline: 18 December 2026
Vacancies: 1 Vacancy

Job Summary

A Day in Your Life at MKS:

As a Sr. Internal Auditor at MKS Inc. you will support the companys 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 workpapers 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:
Bachelors 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 requires good manual dexterity and coordination
Must be able to communicate information and ideas so others will understand
Must be able to exchange accurate information
The ability to observe documents and details at close range (within a few feet of the observer)
Operates in a professional office environment
Constantly operates a computer and other office productivity machinery
Noise level in the work environment is usually average

This position is Hybrid and required in the office Tuesday-Thursday.

Compensation and Benefits:
Salary Pay Range: $88425 to $147375 per year. This range is a good faith estimate of the expected salary range for this position based on a wide range of factors including qualifications experience and training operational and business needs and other considerations permitted by MKS it is not typical for an individual to be hired at or near the top of the range for the role.

Bonus: This position is eligible for a discretionary annual bonus in an amount to be determined by MKS or as applicable.

Benefits: MKS offers a comprehensive benefits package including health insurance coverage (medical dental and vision) 401(k) with company match life and disability insurance 12 paid holidays sick time 15 paid vacation days 6 weeks fully paid parental leave adoption assistance and tuition reimbursement and for participation in any stock programs signing bonus etc..

MKS is an equal opportunity employer including disability veteran status and all categories protected by law. Please review our EOE statements for additional details.

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Globally our policy is to recruit individuals from wide and diverse backgrounds. However certain positions require access to controlled goods and technologies subject to the International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR). Applicants for these positions may need to be U.S. persons. U.S. persons are generally defined as U.S. citizens noncitizen nationals lawful permanent residents (or green card holders) individuals granted asylum and individuals admitted as refugees.

MKS Inc. and its affiliates and subsidiaries (MKS) is an affirmative action and equal opportunity employer: diverse candidates are encouraged to apply. We win as a team and are committed to recruiting and hiring qualified applicants regardless of race color national origin sex (including pregnancy and pregnancy-related conditions) religion age ancestry physical or mental disability or handicap marital status membership in the uniformed services veteran status sexual orientation gender identity or expression genetic information or any other category protected by applicable law. Hiring decisions are based on merit qualifications and business needs. We conduct background checks and drug screens in accordance with applicable law and company policies. MKS is generally only hiring candidates who reside in states where we are registered to do business.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

MKS is committed to working with and providing reasonable accommodations to qualified individuals with disabilities. If you need a reasonable accommodation during the application or interview process due to a disability please contact us at:.

If applying for a specific job please include the requisition number (ex: RXXXX) the title and location of the role


Required Experience:

Senior IC