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Salary
$75k – $100k per year
Location
In office (Irvine)
Seniority
Senior · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 10, 2026. MKS scores B on the Alion truth index.

Overview
Company
Impact
Profile match

MKS

MKS Instruments is an American company founded in 1961 that makes the instruments, subsystems and process control equipment inside semiconductor manufacturing tools, which means it sells mainly to the equipment makers rather than to chip fabs directly. Its portfolio covers vacuum and pressure measurement, gas and liquid delivery, power supplies, lasers and photonics, and, since the Atotech acquisition, the chemistry used in advanced packaging and printed circuit board plating. Headquartered in Andover, Massachusetts and listed on Nasdaq, it carries substantial debt from that acquisition and is exposed to the semiconductor equipment cycle at one remove.

A Day in Your Life at MKS:

As a Senior Sales Contract Administrator at MKS Instruments, Inc., you will be an integral member of the Photonics Solutions Division Sales organization, supporting key customer accounts and partnering closely with Sales, Operations, and Manufacturing teams. This role offers visibility across the business and potential for leadership growth. In this position, you will report to the Senior Manager, Sales Administration.

You Will Make an Impact By:

  • Maintaining new and existing customer orders, including expediting orders, preparing quotes, proactively contacting customers, setting up new customer accounts, and supporting Key Account Managers
  • Communicating weekly order changes, including pull-ins and pushouts, to operations and manufacturing teams
  • Partnering with assigned Account Managers to ensure purchase orders align with approved quotes and contractual terms
  • Maintaining and coordinating bookings while consistently keeping the planning team informed and up to date
  • Ensuring accuracy and compliance throughout the order-to-cash process
  • Supporting cross-functional collaboration to meet customer commitments and business objectives

Skills You Bring:

  • 3+ years of experience in contract administration and/or customer service within a manufacturing environment
  • Proven ability to work effectively in a fast-paced environment where attention to detail and timely follow-up are critical
  • Strong interpersonal and communication skills, with the ability to interact with customers and internal stakeholders at all levels
  • Strong proficiency in Microsoft Office applications
  • Experience with SAP is highly preferred
  • Experience with Salesforce and Ariba is a plus

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

Compensation and Benefits:

Total Base Pay Range: 75,175.00 - 100,000.00 USD Annual, based on qualifications, experience and training, operational and business needs, and other considerations permitted by law.

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, parental leave, adoption assistance, and tuition reimbursement.

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.

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: [email protected].

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

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