In-Fab Wafer Test Engineer
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 7, 2026. Keysight scores B on the Alion truth index.
Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~16,800 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more about what we do.
Our award-winning culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers.
Responsibilities
About this Team
Our team, part of Keysight Laboratories’ High Frequency Technology Center (HFTC), builds and supports hardware and software solutions that electrically test Process Control Monitors (PCM’s) on wafers made in Keysight’s Santa Rosa wafer fabrication facilities. HFTC’s ability to rapidly innovate and deliver the world’s best high frequency technology provides fundamental differentiation for electronic measurement products. The responsibility of an In-Fab Wafer Test Engineer is to facilitate rapid data acquisition of electrical performance of on-wafer PCM’s, ensuring first-pass, quality data is sent to our Integration Engineering Team. In parallel, this on-wafer electrical data provides critical feedback to Process Engineers, ensuring their semiconductor processes are behaving as expected.
About this Role
This role will maintain and craft on-wafer DC, microwave, and millimeter wave measurements for Keysight’s own III-V integrated Process Control Monitors (PCM’s) and Si integrated PCM’s. Test development spans exploratory R&D design validation of cutting-edge devices and automated small volume test of PCM’s designed and manufactured in-house. These measurements are essential for evaluating the health and status of our wafers at critical test junctions within the routing. This role works closely with Integration, Process, NTI, Design, and other Test Engineers to ensure the on-wafer data is of the highest integrity and accurately depicts the lot health.
Elicit test requirements from Process, New Technology, Integration, and Design Engineers
Modernize and Implement New Test Infrastructure
Debug Test Software & Algorithm bugs/issues
Advise on and select test equipment and measurement algorithms
Design and develop RF and DC test plans
Test and validate circuits and test plans
Iteratively improve and optimize
Investigate and resolve issues
Streamline wafer pass/fail decisions
Qualifications
Bachelor’s degree in Electrical Engineering or an equivalent field with 4+ years of relevant experience in the testing and troubleshooting of RF, analog, and digital circuits (MS/PhD with job, internship, or applicable post doc experience)
Understanding of microwave measurements
Understanding of Semiconductor Device Processing
Understanding of Semiconductor Device Physics
Experience using electrical test instrumentation or automated test
Ability and desire to work on rapidly paced projects with several design tasks
Excellent interpersonal, problem solving, and communication skills
Desired Skills
Experience in:
On-wafer electrical test and microwave calibration
Expertise in Analog circuit design and analysis
Software development
Automating electrical test
Semiconductor device physics
Statistical analysis and process improvement
C#, .NET, and Visual Studio
Printed circuit board (PCB) layout
Mechanical design CAD
SPECS Test Framework Experience
Location: This role requires an in-person, hands-on engineer who can physically work with the test systems in Santa Rosa, CA.
This position requires access to certain goods, software, technology, or technical data subject to U.S. export control laws and regulations. Under these laws and regulations, U.S. persons (which includes U.S. citizens, U.S. nationals, lawful permanent residents, refugees, and asylees) working for Keysight can access export-controlled items without authorization from the U.S. government. For any individual who is not a U.S. person, Keysight may need authorization from the U.S. Department of State, U.S. Department of Commerce, or other appropriate federal agency before the individual can access export-controlled items. Employment in this position for non-U.S. persons is contingent on Keysight’s ability to obtain any required government authorizations. Candidates must be a U.S. citizen or lawful permanent resident of the U.S., or protected individual, having authorization from the U.S. government for export-controlled items under 8 U.S.C. 1324b(a)(3).
Careers Privacy Statement ***Keysight is an Equal Opportunity Employer.***
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability or any other protected categories under all applicable laws.
The level of role will be based on applicable experience, education and skills; Most offers will be between the minimum and the midpoint of the Salary Range listed below.
Santa Rosa, CA MIN $94,870.00 MID $126,490.00- MAX $158,120
Note: For other locations, pay ranges will vary by region
This role is eligible for Keysight Results Bonus Program
US Employees may be eligible for the following benefits:
- Medical, dental and vision
- Health Savings Account
- Health Care and Dependent Care Flexible Spending Accounts
- Life, Accident, Disability insurance
- Business Travel Accident and Business Travel Health
- 401(k) Plan
- Flexible Time Off, Paid Holidays
- Paid Family Leave
- Discounts, Perks
- Tuition Reimbursement
- Adoption Assistance
- ESPP (Employee Stock Purchase Plan)
About this Team
Our team, part of Keysight Laboratories’ High Frequency Technology Center (HFTC), builds and supports hardware and software solutions that electrically test Process Control Monitors (PCM’s) on wafers made in Keysight’s Santa Rosa wafer fabrication facilities. HFTC’s ability to rapidly innovate and deliver the world’s best high frequency technology provides fundamental differentiation for electronic measurement products. The responsibility of an In-Fab Wafer Test Engineer is to facilitate rapid data acquisition of electrical performance of on-wafer PCM’s, ensuring first-pass, quality data is sent to our Integration Engineering Team. In parallel, this on-wafer electrical data provides critical feedback to Process Engineers, ensuring their semiconductor processes are behaving as expected.
About this Role
This role will maintain and craft on-wafer DC, microwave, and millimeter wave measurements for Keysight’s own III-V integrated Process Control Monitors (PCM’s) and Si integrated PCM’s. Test development spans exploratory R&D design validation of cutting-edge devices and automated small volume test of PCM’s designed and manufactured in-house. These measurements are essential for evaluating the health and status of our wafers at critical test junctions within the routing. This role works closely with Integration, Process, NTI, Design, and other Test Engineers to ensure the on-wafer data is of the highest integrity and accurately depicts the lot health.
Elicit test requirements from Process, New Technology, Integration, and Design Engineers
Modernize and Implement New Test Infrastructure
Debug Test Software & Algorithm bugs/issues
Advise on and select test equipment and measurement algorithms
Design and develop RF and DC test plans
Test and validate circuits and test plans
Iteratively improve and optimize
Investigate and resolve issues
Streamline wafer pass/fail decisions
Bachelor’s degree in Electrical Engineering or an equivalent field with 4+ years of relevant experience in the testing and troubleshooting of RF, analog, and digital circuits (MS/PhD with job, internship, or applicable post doc experience)
Understanding of microwave measurements
Understanding of Semiconductor Device Processing
Understanding of Semiconductor Device Physics
Experience using electrical test instrumentation or automated test
Ability and desire to work on rapidly paced projects with several design tasks
Excellent interpersonal, problem solving, and communication skills
Desired Skills
Experience in:
On-wafer electrical test and microwave calibration
Expertise in Analog circuit design and analysis
Software development
Automating electrical test
Semiconductor device physics
Statistical analysis and process improvement
C#, .NET, and Visual Studio
Printed circuit board (PCB) layout
Mechanical design CAD
SPECS Test Framework Experience
Location: This role requires an in-person, hands-on engineer who can physically work with the test systems in Santa Rosa, CA.
This position requires access to certain goods, software, technology, or technical data subject to U.S. export control laws and regulations. Under these laws and regulations, U.S. persons (which includes U.S. citizens, U.S. nationals, lawful permanent residents, refugees, and asylees) working for Keysight can access export-controlled items without authorization from the U.S. government. For any individual who is not a U.S. person, Keysight may need authorization from the U.S. Department of State, U.S. Department of Commerce, or other appropriate federal agency before the individual can access export-controlled items. Employment in this position for non-U.S. persons is contingent on Keysight’s ability to obtain any required government authorizations. Candidates must be a U.S. citizen or lawful permanent resident of the U.S., or protected individual, having authorization from the U.S. government for export-controlled items under 8 U.S.C. 1324b(a)(3).
Careers Privacy Statement ***Keysight is an Equal Opportunity Employer.***
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability or any other protected categories under all applicable laws.
The level of role will be based on applicable experience, education and skills; Most offers will be between the minimum and the midpoint of the Salary Range listed below.
Santa Rosa, CA MIN $94,870.00 MID $126,490.00- MAX $158,120
Note: For other locations, pay ranges will vary by region
This role is eligible for Keysight Results Bonus Program
US Employees may be eligible for the following benefits:
- Medical, dental and vision
- Health Savings Account
- Health Care and Dependent Care Flexible Spending Accounts
- Life, Accident, Disability insurance
- Business Travel Accident and Business Travel Health
- 401(k) Plan
- Flexible Time Off, Paid Holidays
- Paid Family Leave
- Discounts, Perks
- Tuition Reimbursement
- Adoption Assistance
- ESPP (Employee Stock Purchase Plan)