Six Figure Work

Principal Electrical Engineer – High-Speed Optoelectronics & RF Systems

MKS

Company websitemks.com (MKS, opens in new tab)

Base salary $126,200  to $210,350

Employer-published annual base salary, USD. Advertised base range in Milpitas, CA

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  • LocationMilpitas, CA
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (2 h ago) · observed since

About this job

A Day in Your Life at MKS:

As a Principal Electrical Engineer – High-Speed Optoelectronics & RF Systems at MKS, you will partner with electrical, optical, mechanical, and manufacturing teams to lead the architecture, design, and development of advanced optoelectronic optical communication test systems. This role requires a hands-on technical leader capable of working across electrical, optical, and mechanical systems and manufacturing disciplines to develop next-generation products.

You Will Make an Impact By:

  • Provide technical leadership for the development of complex optoelectronic products and subsystems.
  • Perform system-level tradeoff analyses involving performance, reliability, manufacturability, cost, and schedule.
  • Support technology roadmaps and identify emerging technologies relevant to future products.
  • Develop RF and microwave circuits from DC to 100 GHz and beyond.
  • Design low-noise signal conditioning, amplification, control, and power management circuits.
  • Perform signal integrity, power integrity, and electromagnetic compatibility analyses.
  • Design and characterize photodiode-based receiver chains, including:
    • Focusing optics
    • Photodiodes
    • Transimpedance amplifiers (TIAs)
    • Distributed amplifiers
    • Receiver front-end electronics
    • Optical detection and acquisition systems
  • Perform HFSS-based analog simulations and high-speed signal-path analysis.
  • Travel Requirements: Up to 10% of Travel is required.

Skills You Bring:

  • MS, or PhD in Electrical Engineering or related field.
  • 15+ years of experience developing complex electronic products.
  • Deep expertise in analog circuit design.
  • Strong RF and high-speed electronics design experience.
  • Demonstrated experience designing photodiode-based receiver systems.
  • Experience with optical design and concepts.
  • Experience with optoelectronic hardware development.
  • Strong proficiency with circuit simulation and modeling tools.
  • Expertise in laboratory characterization, debugging, and root-cause analysis.
  • Track record of bringing complex products from concept through production.

Preferred Skills:

  • Experience developing electronics and optoelectronic hardware for high-speed optical communications and datacenter networking applications.
  • Experience with 100G, 200G, 400G, 800G, or higher-speed optical communication systems.
  • Experience with optical transceivers, coherent optics, and photonic integrated circuits (PICs).
  • Experience with MMIC components and capabilities.
  • Experience with RF amplifier design and topologies.
  • Experience with semiconductor optoelectronic devices and device characterization.
  • Experience with optical test and measurement systems.
  • Familiarity with high-performance instrumentation including oscilloscopes, vector network analyzers (VNAs), and optical/RF spectrum analyzers; TDECQ testing.

Physical Demands and Working Conditions:

  • Physical Demands and Working Conditions: working at an office and laboratory environment. Lifting laboratory equipment up to 20 lbs.

We are interested in a qualified candidate who is eligible to work in the United States. However, we will not be sponsoring work visas for this position, at this time.


Compensation and Benefits:
Salary Pay Range: $126,200 to $210,350 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 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. 


#LI-EK

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

Source: MKS on Workday · View original posting (opens in new tab)

Pay in context

This role's base floor ($126,200) is above 26% of the 2,090 Engineering (non-software) roles in California listed on this site. Their median floor is $146,900; the middle half runs from $125,000 to $173,750.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 7, 2026.

This range next to 6 other live MKS roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live MKS roles with the nearest advertised base floor
RolePublished base
Principal Electrical Engineer – High-Speed Optoelectronics & RF Systems (this listing)$126,200 - $210,350
Principal Electronic EngineerFrom $126,200
Principal Firmware EngineerFrom $126,200
Principal Mechanical Engineer$126,200 - $210,350
Product Marketing ManagerFrom $130K
Principal Buyer - Nuclear Product Lines$130K - $180K
Principal Mechanical Engineer$130K - $200K

Same $100K to $400K scale as every card. All MKS roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-10-04
Where this pay comes from

Location as the employer wrote it: Milpitas, CA

Salary Pay Range: $126,200 to $210,350 per year. This range is a good faith estimate of the expect

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.