Mechanical Testing Jobs in California (NOW HIRING)

Description

Application Deadline:

6/29/2026

Position Summary

JGMS Government Services is seeking an R&D Mechanical Engineer to join our dynamic team! As a Mechanical Engineer, you will contribute to the mechanical design, conduct full product environmental testing, and verify requirements in support of qualification and product delivery. Your role will also include fixture development, documentation, hardware assembly, and managing fabrication processes. Our units are highly integrated electro-mechanical designs that must operate effectively in severe environments. Success in this role requires the ability to collaborate with a multi-faceted engineering team.

This position is full-time, on-site, for a contract duration of 2-3 years.

Job Duties and Responsibilities

On any given day, you may:    

• Collaborate with stakeholders to understand and document system needs and requirements for Telemetry hardware
• Work with a cross-functional team to establish long-term visions and short-term priorities for the mechanical engineering team
• Utilize critical thinking to troubleshoot both mechanical and electromechanical issues, providing solutions within programmatic constraints
• Engage in hands-on work with the Telemetry product through fabrication and testing activities
• Use CREO and PDMLink to design and model the Telemetry product
• Perform and analyze fine element analysis (FEA) simulations for stress, strain, modal and thermal environments
• Work with vendors and buyers to procure development parts
• Work with MCAD and the product definition team to create and authorize product drawings
• The position requires an ability to travel up to 25% to support the mission
• Due to the nature of the work, the selected applicant must be able to work onsite 100% of the time at the Livermore, CA facility.

Requirements

Required Qualifications

• A Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development.
• Demonstrated experience with Creo, Solidworks, or similar MCAD design tool.
• Demonstrated experience developing or executing procedures associated with high value hardware (flight, customer deliverable, production).
• Ability to obtain and maintain a DOE Q security clearance.
• Mechanical Testing (Shock, Vibration, Temperature, Pressure, Humidity) and data analysis
• Strong design skills in CAD (CREO preferred)
• Geometric dimensioning and tolerancing (GD&T) knowledge
• Experience designing for multiple manufacturing processes including machined aluminum, sheet metal and 3D printing (FDM)   
• Demonstrated strong documentation related to product development within a quality management system    
• Mentorship and leadership ability
• Strong, methodical approach to problem-solving

Desired Qualifications

• Graduate degree in Mechanical Engineering or a highly related field where an independent research project was a graduation requirement (e.g., independent project, thesis, or dissertation).
• Experience with mechanical engineering and product realization in the NNSA complex.
• Strong verbal and written communication skills, ability to work effectively in multidisciplinary teams.
• Demonstrated breadth of knowledge in Mechanical Engineering and other engineering fields through school projects or work experience.
• Demonstrated experience drafting drawings using GD&T per ANSI Y14.5.
• Experience in roles that required leadership and/or mentorship.
• Demonstrated experience working with and across a broad range of stakeholders.
• Active DOE Q-Level Security Clearance or other transferable U.S. Government Clearance.
• Understanding of nuclear weapons and Joint Test Assembly design principles.
• Demonstrated experience designing, testing, or fabricating aerospace hardware.
• Demonstrated experience with testing in the following fields or similar: vibration, shock, thermal, vacuum, centrifuge.
• Demonstrated experience developing test plans for validation or verification of requirement sets.

Security Clearance

The ability to obtain and maintain a DOE Security Clearance - Q is required.

Background Check and Screenings

A pre-employment drug screening and background review that includes checks of personal references, credit, law enforcement records, and employment/education verification is required.

Benefits

We take pride in promoting a healthy work-life balance, family-friendly benefits, servant leadership, team values and professional growth. Our competitive benefits package includes:

• Medical Insurance - 100% company paid premiums for employees.
• Dental and Vision Insurance.
• 401k plan with company match.
• 24 hours of paid community service a year!
• Up to 4 weeks paid time off a year.
• 10 paid floating holidays.
• Life insurance, short- and long-term disability.
• Employee Assistance Program (EAP).
• Professional development opportunities.

JGMS Family of Companies

Ethically minded, mission driven.

We provide applied technology, engineering, science, and management services to government and private sector clients nationwide. As a diverse team of professionals, we are focused on meeting the needs of our clients and following through with real solutions that effectively and efficiently meet all budgetary and scheduling requirements. As a member of the team, you will be involved in a growing, dynamic organization that is developing new client solutions to benefit our environment and economy.

Equal Opportunity Employer

JGMS Government Services LLC (JGMS-GS) is dedicated to the principles of equal employment opportunity (EEO) in any term, condition, or privilege of employment. The Company prohibits unlawful discrimination against applicants or employees on the basis of age (40 and over), race, color, religion, national origin, disability, genetic information, sexual identity, sexual orientation, pregnancy, veteran status, marital status, or any other status protected by federal, state or local laws. This policy applies to all applicants, employees, including managers, supervisors, co-workers, and non-employees such as customers, clients, vendors, consultants, or any other entity in professional contact with the Company.

Due to the nature of the government contract requirements and/or clearance requirements, US citizenship may be required.

Interested candidates should submit an application through the JGMS Careers page by the application deadline listed in this posting. Applications may include a current resume and any other materials identified in the posting. Applicants may redact information from application materials that identifies age, date of birth, or dates of attendance at or graduation from an educational institution.

If you are an individual with a disability and need assistance completing the online application, please call (970) 254-1354. 

Alternatively, an email may be sent to HR@jgmsgovservices.com with the subject line 'Applicant Accommodation' in the email.