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Salary
$32k – $54k per year
Location
In office (Irvine)
Seniority
Junior · 1+ year exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 6, 2026. MKS scores A on the Alion truth index.

Overview
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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 an Optical Cleaner 2 at MKS, you will partner with Fabrication, Coating, and Quality Assurance teams to clean, prepare, and process optical components and substrates for fabrication and coating operations. In this role, you will report to the Production Supervisor.

You Will Make an Impact By:

  • Receiving optical parts and substrates from fabrication, coating, and quality assurance departments and preparing them for processing.
  • Reviewing engineering drawings, work instructions, and process documentation to verify dimensions, cleaning requirements, and tooling specifications.
  • Cleaning optical components using approved cleaning processes and procedures to ensure compliance with quality standards.
  • Maintaining accurate cleaning logs, production records, and process documentation.
  • Monitoring and maintaining inventory levels of chemicals, solvents, and cleaning supplies required for daily operations.
  • Following all safety, quality, and environmental procedures while operating in a manufacturing environment and handling chemicals and sensitive optical components.
  • Travel Requirements: Up to 0% of Travel is required.

Skills You Bring:

  • High School Diploma or equivalent vocational training preferred.
  • 1+ years of related experience preferred.
  • Production experience with vocational instruction in optical cleaning.
  • Ability to read, write, perform basic arithmetic, and work from established drawings and work instructions.
  • Excellent visual acuity and attention to detail.
  • Strong manual dexterity and hand-eye coordination for handling delicate optical components.
  • Experience working in a manufacturing, laboratory, or cleanroom environment.
  • Ability to safely handle cleaning chemicals and follow established safety procedures

Physical Demands and Working Conditions:

  • Physical Demand 1: Ability to sit or stand for extended periods of time throughout the workday.
  • Physical Demand 2: Must be able to lift and move materials and equipment weighing up to 25 pounds.
  • Physical Demand 3: Regularly requires excellent manual dexterity, fine motor skills, and hand-eye coordination.
  • Physical Demand 4: Frequently positions self to access materials and equipment below, at, and above shoulder level.
  • Working Condition 1: Operates in a laboratory and manufacturing environment using specialized equipment and machinery.
  • Working Condition 2: Attention to safety protocols is required when handling chemicals, optical components, and cleaning equipment.
  • Working Condition 3: Noise levels in the work environment are typically moderate.
  • Working Condition 4: Exposure to chemicals and fumes may occur; adherence to safety procedures and personal protective equipment requirements is mandatory.

Compensation and Benefits:

Hourly Pay Range: $16.70 - 27.83 USD Hourly. 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 law. At 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.

MKS will consider qualified applicants with a criminal history pursuant to the California Fair Chance Act and the Los Angeles County Fair Chance Ordinance for Employers.

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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