Senior Mechanical Engineer

Senior Mechanical Engineer# Careers at ONTO## Senior Mechanical Engineer Apply:
Wilmington-MA (Jonspin):
Full time:
Posted Today:
R-6658

Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues.

Onto Innovation strives to optimize customers’ critical path of progress by making them smarter, faster and more efficient.
** Job Summary & Responsibilities
**** Position Summary
** Onto Innovation is seeking a Senior Mechanical Engineer to design, analyze, integrate, and support mechanical systems for advanced semiconductor inspection and metrology products. This individual contributor will develop robust mechanical solutions that support precision motion, optical stability, thermal performance, manufacturability, serviceability, and long-term field reliability.
** The role is primarily on-site in Wilmington, Massachusetts, with travel up to 25%.*
* ** Key Responsibilities
*** Design, develop, and validate mechanical assemblies, structures, mechanisms, enclosures, precision fixtures, thermal management solutions, and system integration hardware for advanced semiconductor inspection and metrology equipment.
* Perform engineering analyses including tolerance stack-ups, structural and thermal evaluations, design reviews, prototype testing, and verification activities.
* Generate and release engineering documentation, drawings, specifications, and change orders in accordance with company processes.
* Collaborate with suppliers and manufacturing partners to support component development, production readiness, and quality improvements.
* Provide manufacturing, installation, and field support by troubleshooting technical issues and implementing corrective actions.
* Partner cross-functionally with Systems Engineering, Electrical Engineering, Software Engineering, Optics, Automation, Operations, Manufacturing, Supply Chain, Field Service, Technical Product Support, Product Management, Marketing, and strategic customers.
* Drive continuous mechanical design improvements focused on reliability, manufacturability, serviceability, cost optimization, and overall customer satisfaction.
* Contribute throughout the product lifecycle, from concept development and prototyping through production release and customer deployment.
* Ensure designs meet performance, quality, safety, schedule, and cost objectives while supporting next-generation semiconductor technology development.
* Apply strong analytical problem-solving, engineering judgment, and cross-functional collaboration to drive high-quality mechanical designs, resolve field issues, and improve reliability, manufacturability, and serviceability.
** Qualifications**###

Required Qualifications
* Bachelor’s degree in Mechanical Engineering, Mechatronics, Robotics, Aerospace Engineering, Manufacturing Engineering, or a related technical discipline.
* Minimum of 8 years of mechanical engineering experience developing semiconductor equipment, capital equipment, precision instrumentation, automation systems, robotics, optical systems, motion platforms, or other complex electromechanical products.
* Strong expertise in mechanical design, tolerance analysis, structural and thermal design considerations, CAD modeling, engineering documentation, prototype development, testing, and…