Principal Mechanical Design Engineer

Mechanical Design Engineer

Form Factor, Inc. is a leading provider of essential test and measurement technologies along the full semiconductor product life cycle — from characterization, modeling, reliability, and design de-bug, to qualification and production test. Semiconductor companies rely upon Form Factor's products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The company serves customers through its network of facilities in Asia, Europe, and North America.

Rooted in our core values — Focus on the Customer, Ownership & Accountability, Respectfully & Effectively Communicate, and Motivate & Develop People — we foster an environment where diverse perspectives are not only welcomed but celebrated. Everyone can make an impact here. Whether it's improving products, supporting customers, or positively influencing peers and the community, the contributions of our people matter.

Shift:

The regular hours for this position are day shift.

Job Description:

The Mechanical Design Engineer is responsible for designing, developing, validating and delivering innovative mechanical design solutions for highly complex products and systems that support Form Factor's semiconductor test and measurement products. This role combines hands-on engineering execution with cross-functional collaboration to deliver manufacturable, reliable, and scalable mechanical solutions for advanced technology platforms.

Key Responsibilities:

• Create and release detailed mechanical designs for precision components, characterization fixtures, validation structures, and mechanical assemblies.
• Build, inspect, assemble, and troubleshoot prototype hardware during development, validation, and product release phases.
• Participate in root-cause analysis, failure investigations, inspection reviews, and continuous improvement initiatives.
• Use 3D CAD tools to create models, layouts, detailed drawings, and bills of materials for manufacturable designs.
• Perform engineering analysis, including tolerance studies, fit checks, design reviews, and basic finite element analysis when needed.
• Translate product, customer, process, and manufacturing requirements into robust mechanical design solutions.
• Support probe card mechanical design and architecture development, through detailed design, prototype build, validation, and production release.
• Collaborate with manufacturing, quality, process, and R&D teams to resolve product manufacturing issues and probe card issues in the field.
• Evaluate design feasibility, manufacturability, reliability, cost, and scalability before release.
• Maintain and improve mechanical design templates, documentation standards, drawing practices, and design workflows.
• Translate analytical results into design improvements and actionable engineering recommendations.

Preferred

Qualifications and Skills:

• Strong proficiency with 3D CAD modeling, mechanical drawings, assemblies, and engineering documentation.
• Working knowledge of GD&T, tolerance analysis, design for manufacturability, and mechanical assembly practices.
• Ability to work hands-on in a lab, prototype build, inspection, or manufacturing environment.
• Experience supporting design reviews, engineering validation, troubleshooting, and cross-functional problem solving.
• Clear communication skills and the ability to coordinate technical work across engineering and manufacturing teams.
• Knowledge of inspection methods, metrology, mechanical testing, and prototype validation.
• Demonstrated ability to improve design processes, templates, standards, and documentation for repeatability and scalability.

Skills:

3D Cad Modeling, Adaptive Problem Solving, Autodesk AutoCAD, Data Analysis, Geometric Dimensioning And Tolerancing (GD&T), Mechanical Design, Precision Metrology, Problem Solving, Product Development, Solid Works, Solid Works PDM

Education & Experience:

Minimum of 5 years of related experience with a Bachelor's degree; or 3 years and a Master's degree; or a PhD without experience; or equivalent work

Pay Range:

$ - $

Pay Range Explained:

This role in Livermore, California pays between $ and $ per year, depending on your experience, skills, and background.…