Demo

Senior Sales Administrator

MKS
Irvine, CA Full Time
POSTED ON 10/25/2026
AVAILABLE BEFORE 12/25/2026

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.

Salary.com Estimation for Senior Sales Administrator in Irvine, CA
$60,803 to $75,847
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