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Defense Contractor Mechanical Engineer Jobs in Riverside, CA

Managed Staffing

Mechanical Engineer

Irvine, CA · On-site

$50 - $56/hr

Mechanical Engineer Location: Onsite - Irvine, CA Shift: 1st Shift US Citizenship Required About ... and defense applications. This role involves hands-on engineering work, design reviews ...

NextDeavor Inc.

Mechanical Engineer II

Irvine, CA

$42.97 - $53.72/hr

... defense and aerospace programs. You will partner with engineering peers, suppliers, and management to meet cost, schedule, and technical targets. Onsite role (first shift, standard 5x8 schedule)

DZYNE Technologies

Mechanical Engineer, UAS

Irvine, CA · On-site

$105K - $150K/yr

About DZYNE DZYNE Technologies is leading the future of autonomous defense. Based in Irvine ... Mechanical Engineer, UAS Location: Irvine, CA Work Arrangement: 100% On-site Position Summary We ...

Staco Systems

Mechanical Engineer

Irvine, CA · On-site

$65K - $162K/yr

The Mechanical Engineer will also make and recommend design changes through test and ... and Defense Logistics Agency requirements for switches and lighted face plates or equivalent ...

Staco Systems

Mechanical Engineer

Irvine, CA

The Mechanical Engineer will also make and recommend design changes through test and ... and Defense Logistics Agency requirements for switches and lighted face plates or equivalent ...

Staco Systems

Mechanical Engineer

Irvine, CA · On-site

$65K - $162K/yr

The Mechanical Engineer will also make and recommend design changes through test and ... and Defense Logistics Agency requirements for switches and lighted face plates or equivalent ...

NextDeavor Inc.

Mechanical Engineer II

Irvine, CA · On-site

$40.01 - $64.90/hr

Mechanical Engineer II Full-time Irvine, CA, US Exclusive confidential search -- details shared ... Defense or aerospace industry experience * Experience in development of thermal systems

Belcan

Mechanical Engineer II

Irvine, CA

$45 - $55/hr

Mechanical Engineer II Pay Rate: $45-$55/hr Location: Irvine, CA Area Code: 714 ZIP Code: 92618 ... in defense or aerospace applications. * Hands-on test and hardware experience is a plus.

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All JobsDefense Contractor Mechanical Engineer JobsDefense Contractor Mechanical Engineer Jobs in Riverside, CA

Defense Contractor Mechanical Engineer information

See Riverside, CA salary details

$47.5K

$107.3K

$173.7K

How much do defense contractor mechanical engineer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for defense contractor mechanical engineer in Riverside, CA is $107,329.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,000.00 and $132,000.00 per year, depending on experience, location, and employer.

What are some common challenges faced by mechanical engineers working as defense contractors?

Mechanical engineers in defense contracting often face the challenge of adhering to strict regulatory standards and security protocols, which can add complexity to the design and manufacturing process. Additionally, projects typically require close collaboration with multidisciplinary teams and may involve rapidly adapting to evolving project requirements driven by client needs or new technological developments. Managing tight deadlines while ensuring compliance with military specifications is also a frequent aspect of the role. These challenges are balanced by the opportunity to work on innovative, mission-critical systems and to gain experience with cutting-edge technologies.

What are the key skills and qualifications needed to thrive as a defense contractor mechanical engineer?

To excel as a Defense Contractor Mechanical Engineer, you need a solid background in mechanical engineering principles, a relevant engineering degree, and often a security clearance. Familiarity with CAD software, simulation tools, and knowledge of defense-specific standards and certifications like ITAR compliance are typically required. Strong problem-solving, teamwork, and effective communication skills are critical for collaborating on complex defense projects. These competencies ensure the engineer can design reliable, compliant systems that meet stringent defense requirements and function under high-stakes conditions.

What is the difference between Defense Contractor Mechanical Engineer vs Defense Industry Mechanical Engineer?

AspectDefense Contractor Mechanical EngineerDefense Industry Mechanical Engineer
CredentialsBachelor's in Mechanical Engineering, possibly security clearanceBachelor's in Mechanical Engineering, possibly security clearance
Work EnvironmentContractor offices, military facilities, project sitesDefense manufacturing plants, military facilities
Employer & Industry UsagePrimarily employed by defense contractors serving military clientsEmployed directly by defense agencies or manufacturers
Common Search & ComparisonYesYes

Both roles require similar credentials and often involve working in secure environments. The main difference is that Defense Contractor Mechanical Engineers are employed by private firms providing services to defense clients, while Defense Industry Mechanical Engineers work directly within defense agencies or manufacturing companies. The roles overlap in skills and work settings, but their employment context distinguishes them.

What does a defense contractor mechanical engineer do?

A Defense Contractor Mechanical Engineer designs, develops, and tests mechanical systems for military and defense applications. Their work may involve creating components for vehicles, weapons, or support equipment used by armed forces. They collaborate with multidisciplinary teams to ensure these systems meet strict safety, reliability, and performance standards. Additionally, they must adhere to government regulations and security protocols while handling sensitive information. Their role is critical in advancing defense technologies and maintaining national security.
What are popular job titles related to Defense Contractor Mechanical Engineer jobs in Riverside, CA? For Defense Contractor Mechanical Engineer jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Defense Contractor Mechanical Engineer jobs in Riverside, CA look for? The top searched job categories for Defense Contractor Mechanical Engineer jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Defense Contractor Mechanical Engineer jobs? Cities near Riverside, CA with the most Defense Contractor Mechanical Engineer job openings:
Defense Contractor Mechanical Engineer jobs near you

Mechanical Engineer

Managed Staffing

Irvine, CA • On-site

$50 - $56/hr

Contractor

Re-posted 6 days ago

Job description

Mechanical Engineer

Location: Onsite – Irvine, CA
Shift: 1st Shift
US Citizenship Required

About the Role

We are seeking a Mechanical Engineer I to support the design, analysis, and development of mechanical equipment, systems, and components for aerospace and defense applications. This role involves hands-on engineering work, design reviews, calculations, and collaboration with cross-functional teams. Work is 100% onsite in Irvine, CA.

Key Responsibilities

  • Perform mechanical design of components, assemblies, and systems.

  • Conduct engineering calculations and analyses to validate suitability and safety.

  • Support assembly, troubleshooting, testing, and repair of environmental control systems.

  • Review drawings from Drafters/Designers and provide feedback.

  • Support engineers on simple–medium complexity projects; may provide guidance to Drafters/Designers.

  • Prepare technical reports, documentation, and presentation materials.

  • Collaborate with internal engineering, manufacturing, and quality teams.

  • Present design concepts to peers, engineers, and customers.

Required Qualifications

  • Bachelor’s Degree in Mechanical Engineering (BSME) from an accredited institution.

  • Knowledge of mechanical design principles and ASME Y14.5M GD&T standards.

  • Experience designing mechanical components/subsystems.

  • Understanding of mechanical drafting and drawing standards.

  • Familiarity with applied thermodynamics and mechanical engineering fundamentals.

  • US Citizen (mandatory for defense project eligibility).