Mechanical Engineer III
Cohu
San Diego, CA · Posted August 17, 2026
Just laid off? Start here: a plan for the first weeks
More in California job market · Manufacturing & Industrial · Engineering jobs
More roles at Cohu
- AI - Principal Software Engineer
- Director of Engineering, Semiconductor Test Group · Norwood, MA
- Electro/Mechanical Systems Engineer · San Diego, CA
- Senior Electro/Mechanical Systems Engineer · San Diego, CA
- Electrical Designer · San Diego, CA
- Sr. Vision Software Engineer · San Diego, CA
Similar jobs
- Principal Design Quality Engineer (Onsite - El Segundo, CA) · RTX · el segundo, CA
- Principal Mechanical Design Engineer · RTX · goleta, CA
- Principal Applications Engineer · Formfactor · CA
- Senior Principal Mechanical Engineer · Hewlett Packard Enterprise · Sunnyvale, CA
- Principal Mechanical Engineer · Hewlett Packard Enterprise · Sunnyvale, CA
- Principal Engineer, Mechanical Design · Sonova USA · Valencia, CA
Where San Diego, CA ranks
Where San Diego, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Cities hosting the most business conferences in the West Coast78 conferences · of 17
- #2Cities hosting the most human resources conferences6 conferences · of 10
- #3Best cities for life sciences and biotech jobs454 openings · of 41
- #3Best cities for aerospace and defense jobs377 openings · of 67
- #3Cities hosting the most legal services conferences7 conferences · of 17
- #3Cities hosting the most staffing & human capital conferences6 conferences · of 8
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
Say which you have and which you want to build. We use it to match you to jobs like this one.
About the job
Cohu is a world leader in semiconductor handling equipment used to test ICs. We are seeking a Mechanical Engineer with expertise in automation equipment design, mechanisms, and electromechanical systems.
This role focuses on developing innovative mechanical solutions for new product introductions and enhancing our existing automation platforms. We’re looking for someone who is creative, hands-on, and excited about engineering complex automation systems.
Key Responsibilities
Innovation & Product Development
Conceptualize, design, and develop automation and mechanical technologies, including prototypes, testing, and transfer to high‑volume production.
Lead engineering efforts for new and existing mechanical and electromechanical systems.
Improve and optimize current designs, assemblies, and processes.
Engineering Analysis & Documentation
Perform mechanical analysis to validate design feasibility and risk.
Create detailed drawings, assemblies, BOMs, alignment procedures, and engineering documentation.
Conduct functional, reliability, and performance testing.
Cross-functional Collaboration
Work with mechanical, electrical, software, and vision engineering teams, both locally and remotely.
Interface with operations, sales, customers, and other Cohu business units.
Select, evaluate and qualify new vendor components for performance and reliability.
Project Leadership
Participate in all phases of development: requirements, design, integration, test, deployment, and support.
Develop and maintain project requirements, specs, schedules, and budgets.
Manage timelines, design reviews, and functional specifications for new sub-assemblies.
Provide mentorship and technical guidance to junior engineers and designers.
May lead development of modules or sub-assemblies using system engineering methods to support clear requirements and multi-discipline interfaces
Required Qualifications
Bachelor’s degree in Mechanical Engineering
10+ years of experience in mechanical design.
Strong background in mechanism design, including gears, racks, bearings, actuators, linkages, motors, cylinders, vacuum components, etc.
Experience developing automation or robotic systems.
Proficiency in SolidWorks and SolidWorks Simulation.
Working knowledge of materials, coatings, plastics, manufacturing processes, GD&T, and design for manufacturability.
Preferred Skills (Nice-to-Have)
Exposure to thermal systems, heat transfer, CFD, or thermal-mechanical FEA.
Experience with MTBF, FMEA, or reliability engineering.
Ability to interpret and analyze lab data or field system data.
Soft Skills & Tools
Strong communication and presentation skills.
Ability to direct drafters/designers and collaborate with cross-functional teams.
“Big picture” engineering approach, with strong creativity and problem‑solving skills.
Proficiency in MS PowerPoint, Excel, Word, and Project.
Work Conditions
Up to 15% domestic and international travel.
Lab environment with intermittent noise.
Extended periods at a computer workstation.
Able to occasionally lift up to 20 lbs.
Compensation: The estimated base pay range for this position is $115,000-170,000 per year, depending on qualifications, experience, education, and other job-related factors. This range represents Cohu’s good faith estimate of what it reasonably expects to pay for this role upon hire. This role may also be eligible for other compensation programs as determined by company policy.
Featured benefits
Medical, dental & vision insurance
401(k) with company matching contributions
Employee Stock Purchase Plan
Tuition assistance
Disability & life insurance
Profit Sharing