CMM Operator / Inspector

RiseMe; Pleasanton (CA); On-site; USD 52,000 - 55,000; Full time

Job summary

Hitachi Particle Engineering and Services, Inc. in Pleasanton, CA, seeks a CMM Inspector for a 3-6 month contract (possible extension) to perform dimensional inspections of high-precision components, ensuring conformance to engineering drawings and GD&T.

Strong math, data recording, and clear communication are essential. Responsibilities include operating manual CMMs, selecting measuring instruments, recording data, and collaborating with engineering to resolve discrepancies.

Qualifications

• High school diploma or GED required; technical certifications or associate degrees in engineering/manufacturing preferred.
• 5+ years of precision inspection experience using CMMs in a quality-controlled environment.
• Knowledge of ASME Y14.5 GD&T to interpret complex engineering intents.
• Ensure accurate measurements using GD&T principles.
• Experience with CMM software (CMM Manager preferred) and measurement hand tools (calipers, micrometers).
• Knowledge of quality assurance principles related to dimensional inspection and ANSI sampling standards.

Responsibilities

• Operate manual CMM machinery to perform in-process, first-article, and final dimensional inspections.
• Interpret engineering drawings, specifications, and GD&T symbols.
• Collaborate with engineering to identify critical inspection dimensions.
• Determine appropriate measuring instruments based on drawings.
• Record inspection data including calibrated instruments used.
• Document acceptance or rejection of material.
• Collaborate with engineering/manufacturing to troubleshoot discrepancies.
• Label and segregate materials not meeting specifications.
• Assist with non-CMM related inspections as needed.

Skills

GD&T knowledge

Engineering drawings interpretation

Inspection data recording

Mathematics

MS Office

Communication skills

Education

High school diploma or GED

Associate degree in engineering or manufacturing (preferred)

Tools

CMM Manager

Calipers

Micrometers

Job description

Location:

Pleasanton, California, United States

Job ID:

R0146191

Date Posted:

2026-09-24

Company Name:

HITACHI AMERICA, LTD.

Profession (Job Category):

Quality Management

Job Schedule:

Full time

Remote:

No

Job Description:

CMM Inspector

Company: Hitachi Particle Engineering and Services, Inc.

Location: Pleasanton, CA

Status: 3 - 6 month contract (eligible for extension)

The Company

Hitachi Particle Engineering and Services, Inc. (HPES) provides service and maintenance operations to Particle Therapy systems. Accsys Technologies, a division of HPES designs and manufactures ion RF LINAC systems (radio frequency linear accelerator), which are used in Particle Beam Therapy systems and R&D applications. Hitachi Particle Engineering and Services, Inc. is a Hitachi Group Company.

Summary

The CMM (Coordinate Measurement Machine) Operator is a quality-driven professional responsible for performing dimensional inspections of high-precision components and manufacturing materials. This role ensures products meet engineering specifications, quality standards, and customer requirements through accurate measurement and inspection.

Duties and Responsibilities include but are not limited to:

• Operate manual CMM machinery to perform in-process, first-article, and final dimensional inspections.
• Interpret engineering drawings, specifications, and Geometric Dimensioning and Tolerancing (GD&T) symbols.
• Collaborate with engineering to identify critical inspection dimensions
• Determine appropriate measuring instruments required based on drawings
• Accurately record inspection data including calibrated instruments used
• Document acceptance or rejection of material
• Collaborate with engineering and/or manufacturing to troubleshoot discrepancies
• Appropriately label and segregate materials that do not meet specification
• Assist with non-CMM related inspections as needed

Required Qualifications:

• High school diploma or GED required; technical certifications or associate degrees in engineering or manufacturing disciplines are preferred.
• 5+ years of precision inspection experience using CMMs in quality-controlled environment.
• Understanding of Geometric Dimensioning and Tolerancing (ASME Y14.5) to interpret complex engineering intents
• Ensure accurate measurements using GD&T principles.
• Experience with CMM software (CMM Manager preferred) and measurement hand tools (calipers, micrometers, etc.)
• Knowledge of quality assurance principles related to dimensional inspection
• Knowledge of ANSI sampling standards
• Excellent written, verbal and communication skills
• Proficient math skills
• Proficient with Microsoft Office suite

Working Conditions

General manufacturing/inspection environment. Potential for exposure to radiation. Employees frequently walk, stand and sit for computer use; may sit for extended periods of time.

Our Values

We are proud to say we are an equal opportunity employer and welcome all applicants for employment without attention to any factor that doesn’t impact your ability to do the job, including race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. We are proud of Japanese heritage, with our values expressed through the Hitachi Spirit:

Wa – Harmony, Trust, Respect

Makoto – Sincerity, Fairness, Honesty, Integrity

Kaitakusha-Seishin – Pioneering Spirit, Challenge

For California only (as required by California’s Pay Transparency for Pay Equity Act (SB 1162)): A good faith estimate of the expected hourly rate for this position that the employer reasonably expects to pay for the position upon hire is $38.46 per hour. Pay is determined based on a variety of factors including, but not limited to, depth of experience in the practice area. Employees are eligible to participate in Hitachi America’s variable pay program, subject to the program’s conditions and restrictions.

Equal Opportunity Employer (EOE)-Females/Minorities/Protected Veterans/Individuals with Disabilities

If you need a reasonable accommodation to apply for a job at Hitachi, please send the nature of request and contact information to [e-mail]. Queries other than accommodation requests will not be responded to.