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Principal Mechanical Engineer

Mizuho OSI
Union, CA Full Time
POSTED ON 4/5/2026
AVAILABLE BEFORE 5/27/2026
About Company

Mizuho OSI is the leader in the markets for specialty surgery and patient positioning. The company’s portfolio includes specialty surgical tables for procedure-specific approaches that improve patient outcomes in spine and orthopedic surgeries along with disposable and reusable surgical patient care products.

Job Summary

The Mechanical Engineer designs operating room equipment including patient support structures, electromechanical, pneumatic, hydraulic actuators, and accessories. Contributes to product innovation via out of box thinking and drive product concepts to production. Maintains current knowledge of competitive technologies including medical, technical, manufacturing, and materials developments as related to company products. Maintains complete, accurate, and timely design history documentation, including testing methods.

We are looking for you, if you have the ability to:

  • Design metal, plastic, and carbon composite patient support structures for use in operating rooms meeting requirements for stiffness, strength, stability, reliability and cost.
  • Design user actuated mechanisms and electro-mechanical drive trains to articulate these structures to optimize patient positioning, surgical access, and applied traction.
  • Work with a diverse group of motivated individuals within the mechanical engineering team as well as peers in other R&D, manufacturing, clinical, marketing, and service teams.

Responsibilities

  • Work independently or within cross functional development teams to design, develop, and test products that meet system specifications.
  • Participate with New Product Introduction (NPI) to assure product designs are optimized for manufacturing.
  • Evaluate field input from Service and Marketing regarding product performance.
  • Maintain a continuing liaison relationship with Manufacturing and Marketing functions to meet and improve product needs.
  • Continually contribute to product improvement and cost reduction.
  • Participate in vendor selection, sustaining engineering, QC inspection, and material review board activities.
  • Assist other engineers and designers with technical input and lead projects as necessary.
  • Clear verbal and written communication skills.
  • Understand, follow and support Mizuho OSI’s internal Quality System policies, procedures and work instructions including but not limited to applicable external regulations (21 Code of Federal Regulations Part 820 Quality System Regulations and applicable International Standards).

Qualifications & Requirements

  • Bachelor's Degree in Mechanical Engineering and 8-12 years or Master's Degree 6 YOE or PhD 3 YOE in design experience leading technical development projects and mentoring engineering personnel, and effectively communicating with senior management.
  • Fluency with CAD software, preferably Solidworks. Ability to apply engineering principles to define and solve problems, collect data, establish facts, and draw valid conclusions.
  • Ability to create and innovate solutions for design of mechanical parts and assemblies.
  • Excellent written and verbal communication skills.
  • Familiarity with electromechanical design including motor selection, couplings, bearings, gearbox design, drivetrain integration, sensor integration, and electronics packaging.
  • Familiarity with structure design via hand calculations and using software.
  • Familiarity with mechanism design including cams, linkages, actuators, mechanical attachments, and jigs and fixtures
  • Familiarity with design of mechanical user interfaces such as adjustment devices and touch points.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Salary range: $144,000- $188,000 DOE annual potential bonus comprehensive benefits package

Salary : $144,000 - $188,000

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