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Test Engineer Jobs in Santa Rosa, CA (NOW HIRING)

Apple

Firmware Validation Engineer

Bodega Bay, CA · On-site

$184K - $324K/yr

Responsible for developing test automation along with executing firmware test cases for System on a Chip (SoC) in wireless application, you will work closely with the Software Engineering team ...

Apple

Firmware Validation Engineer

Bodega Bay, CA · On-site

$129K - $225K/yr

Responsible for developing and executing firmware test cases for System on a Chip (SoC) in wireless application, you will work closely with the Software Engineering team ensuring the quality of their ...

Stäubli

Test Lab Technician

Windsor, CA · On-site

The Test Lab Technician is responsible for supporting R&D Department with the development of Engineered to Order (ETO) products for Stäubli. Duties will include the testing and validation of new ...

Stäubli

Test Lab Technician

Windsor, CA · On-site

The Test Lab Technician is responsible for supporting R&D Department with the development of Engineered to Order (ETO) products for Staubli. Duties will include the testing and validation of new ...

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All JobsTest Engineer JobsTest Engineer Jobs in Santa Rosa, CA

Test Engineer information

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How much do test engineer jobs pay per hour?

As of Sep 10, 2026, the average hourly pay for test engineer in Santa Rosa, CA is $48.37, according to ZipRecruiter salary data. Most workers in this role earn between $36.54 and $57.31 per hour, depending on experience, location, and employer.

What is a test engineer?

Test Engineers are professionals responsible for evaluating and ensuring the quality of products, typically software or hardware, by designing and executing tests. They identify bugs, glitches, or any issues that might affect the user experience or product performance. Test Engineers also document test results, collaborate with developers to resolve issues, and help improve processes to prevent future problems. Their work is critical in delivering reliable and high-quality products to customers.

What are the key skills and qualifications needed to thrive as a test engineer, and why are they important?

To thrive as a Test Engineer, you need a solid background in software development, quality assurance principles, and test case design, often supported by a degree in computer science or a related field. Familiarity with automated testing tools like Selenium, JUnit, or TestNG, as well as experience with bug tracking systems and scripting languages, is typically required. Attention to detail, problem-solving ability, and effective communication are crucial soft skills for identifying issues and collaborating with development teams. These skills ensure the delivery of reliable, high-quality products by efficiently detecting and resolving software defects.

How do test engineers typically collaborate with development and product teams during a project?

Test Engineers play a crucial role in cross-functional teams by working closely with developers and product managers throughout the software development lifecycle. They participate in requirement reviews, design discussions, and sprint planning meetings to ensure testability and clarity of features. Regular communication helps identify potential issues early, align on acceptance criteria, and prioritize testing efforts. This collaborative approach helps deliver higher-quality products and fosters a culture of continuous improvement.

What is the difference between Test Engineer vs QA Analyst?

AspectTest EngineerQA Analyst
Required CredentialsBachelor's in Engineering, Computer Science, or related field; certifications like ISTQBBachelor's in related fields; ISTQB certification common
Work EnvironmentSoftware development teams, testing labs, automation toolsQuality assurance teams, process documentation, testing environments
Employer & Industry UsageTech companies, software firms, manufacturingIT services, software development, healthcare

Test Engineers focus on designing, executing, and automating tests to ensure software quality, often working closely with developers. QA Analysts primarily analyze quality processes, develop testing plans, and ensure compliance with standards. While both roles aim to improve product quality, Test Engineers are more technical and automation-oriented, whereas QA Analysts emphasize process and manual testing. Understanding these differences helps in choosing the right career path or job role.

How much does a test engineer get paid?

The average salary for a test engineer varies by experience and location but typically ranges from $60,000 to $100,000 annually. Entry-level positions may start lower, while experienced test engineers with specialized skills or certifications can earn higher salaries, especially in competitive markets or with expertise in automation tools.

Is it hard to be a test engineer?

Becoming a test engineer requires a strong understanding of software development, testing methodologies, and tools such as automation frameworks. The role can be challenging due to the need for attention to detail, problem-solving skills, and the ability to work under deadlines, but it is manageable with proper training and experience.
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Test Engineer jobs near you
Infographic showing various Test Engineer job openings in Santa Rosa, CA as of September 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, 2% Contract, and 1% Nights. Highlights an 91% Physical, 1% Hybrid, and 8% Remote job distribution, with an average salary of $100,616 per year, or $48.4 per hour.

R&D Test Engineer, Thermal/Mechanical/Reliability

Bodega Bay, CA • On-site

Diamond Foundry
Jewelry, Luggage, and Leather Goods Stores • 51 - 200 employees
Learn more about Diamond Foundryexternal

$125K - $155K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 16 days ago

Job description

Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.

We are seeking an on-site R&D Test Engineer to join our AI Chips team. This role will work closely with the thermal/mechanical/reliability lead to execute thermal testing, coordinate reliability testing, design and develop custom test hardware and fixtures for customer prototyping of single-crystal diamond applications on AI customer chips, and generate engineering insights that guide customer engagements and product development. 

The ideal candidate is a hands-on thermal or mechanical engineer with strong technical problem-solving skills, a collaborative mindset, and the ability to support fast-paced customer and internal development programs.

This position will be located out of our San Jose office. 
Responsibilities

  • Support customer prototyping projects through design and development of mechanical fixtures and experimental apparatus using CAD software, and coordinate fabrication with internal and external machine shops.

  • Coordinate accelerated lifetime reliability testing and environmental stress testing per industry standards to validate long-term performance and durability of SCD-on-silicon attachment methods, package integrity.

  • Design, build, operate, and troubleshoot thermal characterization test platforms to evaluate SCD thermal solutions on thermal test vehicles (TTVs) and customer hardware.

  • Develop assembly processes for prototype hardware, including thermal interfaces, mounted cooling solutions, and instrumentation integration as needed.

  • Manage project schedules, technical risks, cross-functional communication, customer updates, and technical reports.

Requirements

  • Degree & Experience: BS or MS in Mechanical Engineering or a related discipline, with 2+ years of experience in mechanical/thermal engineering, test engineering, or product development.

  • Thermal & Reliability Testing: Experience with laboratory instrumentation and data acquisition systems (Preferred: thermal testing/characterization for packaged devices, liquid cooling solutions like fans/cold plates, and reliability/environmental stress testing).

  • Software & Simulation: Proficiency with CAD software (SolidWorks preferred) (Preferred: familiarity with FEA and CFD tools such as ANSYS Mechanical/Fluent, Icepak, or COMSOL).

  • Data Analysis & Fabrication: Experience creating engineering drawings to support fabrication, alongside data processing and analysis using MATLAB, Python, Excel, JMP, or similar tools (Preferred: familiarity with IC packaging, metrology, or failure analysis).

  • Professional Attributes: Strong problem-solving and communication skills, with a hands-on, detail-oriented mindset, comfortable working cross-functionally in a fast-paced R&D environment.

$125,000 - $155,000 a year
The position is eligible for company shares. Actual compensation may be higher or lower in the range based on various factors, including, but not limited to a candidate's job duties, experience, and location. We will also consider higher-level candidates and salary will be adjusted accordingly.
Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. Our benefits begin as early as your first day of employment. Medical and vision coverage are retroactive to your start date, while dental and voluntary benefits take effect once you've completed your enrollment.

Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.

Diamond Foundry Inc. is committed to operating in full compliance with all applicable state and federal laws. Our commitment extends to ensuring that our manufacturing and engineering departments adhere to the highest standards of legal and regulatory compliance. Additionally, these departments may have specific physical requirements to ensure the safety and efficiency of our operations. We prioritize the well-being of our employees and strive to create a work environment that promotes both legal compliance and the optimal functioning of our manufacturing and engineering processes.

Manufacturing and Engineering Departments Physical Requirements:
-Use appropriate PPE and follow all safety policies, practices, and procedures.
-This position will often: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist,  climb, balance, stoop, squat,  kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions. 
-Some tasks may require the use of ladders or stairs
-Some tasks may require driving or the use of foot controls
-Lift/carry and push/pull up to 50 pound

This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.
If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment.
Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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