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Internship R&D Mechanical Engineer Jobs in California

Hermeus

Mechanical Engineer

Los Angeles, CA · On-site

$91K - $140K/yr

... internships and significant student project experience qualify) Preferred Skills and Experience ... F.R. § 120.62or otherwise eligible for deemed export licensing. US persons include U.S. citizens ...

Planted

Sr. Mechanical Engineer

Oakland, CA · On-site

$125K - $165K/yr

About The Role As an integral part of the R+D team you will design machines, robots, and structures ... Bachelor's degree in mechanical engineering or similar * Experience in industry in structural ...

SAIC

Mechanical Engineer

San Diego, CA · Hybrid

$120K - $160K/yr

Engineering and Sciences Subcategory: Mechanical Engr Schedule: Full-Time Shift: Day Job Travel ... R) device. * 10 years of demonstrated experience in the design of electro-mechanical systems.

Planted Solar

Sr. Mechanical Engineer

Oakland, CA · On-site

$125K - $165K/yr

About The Role As an integral part of the R+D team you will design machines, robots, and structures ... Bachelor's degree in mechanical engineering or similar * Experience in industry in structural ...

Exponent Inc.

Mechanical Engineer (Ph.D.)

Los Angeles, CA · On-site

$140K - $160K/yr

D. in Mechanical Engineering, Aerospace Engineering or equivalent degree with focused thesis/coursework/project experience in electromechanical, controls, engineering mechanics, or machine design ...

KLA Corporation

Sr. Mechanical Engineer

Milpitas, CA · On-site

$121K - $160K/yr

KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert ... Interns are eligible for some of the benefits listed. Our pay ranges are determined by role, level ...

R D Olson Construction

Project Engineer

Irvine, CA · On-site

Project Engineer - R.D. Olson Construction | SoCal Sedona, AZ & Southern California | Commercial GC | Hospitality + Multifamily This isn't just another construction job. It's your launchpad. At R.D.

Orbotech

Sr. Mechanical Engineer

Milpitas, CA · On-site

$121K - $160K/yr

KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert ... Interns are eligible for some of the benefits listed. Our pay ranges are determined by role, level ...

KLA Corporation

Sr. Mechanical Engineer

Milpitas, CA

$121K - $160K/yr

KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert ... Interns are eligible for some of the benefits listed. Our pay ranges are determined by role, level ...

Nidec Corporation

Mechanical Engineer

Rancho Cordova, CA · On-site

$68K - $72K/yr

... Internship, co-op, or academic project experience in mechanical engineering preferred Knowledge, Skills & Abilities Fundamental knowledge of mechanical engineering principles Basic understanding of ...

SAIC

Mechanical Engineer

San Diego, CA · On-site

$120K - $160K/yr

... R) device. * 10 years of demonstrated experience in the design of electro-mechanical systems ... engineering, intelligence, and enterprise information technology markets. SAIC is Redefining ...

Peregrine Team

Mechanical Engineer I

Los Angeles, CA · On-site

Bachelor's degree in Mechanical Engineering or related field * 0-2 years of experience or relevant internship experience * Familiarity with CAD software such as SolidWorks, Creo, or similar * Strong ...

Coherent

Senior Mechanical Engineer

Fremont, CA · On-site

$123K - $163K/yr

Development Engineering Leadership: Oversee the entire mechanical engineering design and ... R&D-level and mass-production-level. * Manufacturing Collaboration: Work closely with R&D, ...

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All JobsR&D Mechanical Engineer JobsInternship R&D Mechanical Engineer JobsInternship R&D Mechanical Engineer Jobs in California

Internship R D Mechanical Engineer information

What is an internship R&D mechanical engineer?

Internship R&D Mechanical Engineers are students or recent graduates who work with research and development teams to assist in designing, testing, and improving mechanical products or systems. They gain hands-on experience by contributing to various phases of product development, including prototyping, analysis, and documentation. These interns often use engineering software, perform experiments, and collaborate with senior engineers to solve technical challenges. The role helps them develop both technical and professional skills while exploring a potential career in mechanical engineering R&D.

What types of projects and responsibilities can an internship R&D mechanical engineer expect during their program?

As an Internship R&D Mechanical Engineer, you will typically have the opportunity to work on hands-on projects such as designing prototype components, conducting experiments, and assisting with product testing. You'll likely collaborate with senior engineers and cross-functional teams including electrical engineers, manufacturing, and quality assurance. The work environment is often dynamic and encourages innovation and problem-solving. Interns are encouraged to contribute ideas, learn from feedback, and participate in regular team meetings. This exposure helps you gain practical experience and develop skills that can lead to full-time opportunities after graduation.

What are the key skills and qualifications needed to thrive as an internship R&D mechanical engineer, and why are they important?

To thrive as an Internship R&D Mechanical Engineer, you need a solid understanding of mechanical engineering principles, a relevant degree in progress, and proficiency in CAD design. Familiarity with engineering software like SolidWorks or AutoCAD and experience with prototyping or simulation tools are typically required. Strong problem-solving abilities, teamwork, and effective communication skills help interns excel in collaborative and innovative environments. These capabilities are crucial for contributing to research projects, developing prototypes, and supporting the advancement of new products or technologies.

What is the difference between Internship R&D Mechanical Engineer vs Mechanical Design Engineer?

AspectInternship R&D Mechanical EngineerMechanical Design Engineer
CredentialsTypically pursuing or recently completed a relevant degreeBachelor's or higher in Mechanical Engineering
Work EnvironmentInternship setting, often in R&D labs or innovation teamsFull-time design and development teams in manufacturing or tech companies
Employer & Industry UsageEntry-level, often in research-focused roles across various industriesDesign-focused roles in automotive, aerospace, or product manufacturing

In summary, an Internship R&D Mechanical Engineer is a temporary, entry-level position focused on research and development tasks, often for students or recent graduates. A Mechanical Design Engineer is a full-time professional responsible for designing mechanical components and systems, with more experience and responsibility in product development.

What are the most commonly searched types of R&D Mechanical Engineer jobs in California? The most popular types of R&D Mechanical Engineer jobs in California are:
Internship R D Mechanical Engineer jobs near you
Infographic showing various Internship R&D Mechanical Engineer job openings in California as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, 3% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

Mechanical Engineer

Hermeus

Los Angeles, CA • On-site

$91K - $140K/yr

Full-time

Medical, Retirement, PTO

Re-posted 20 days ago

Job description

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.
Responsibilities
  • Structural design supporting vehicle subsystems such as hydraulics, fuel systems, propulsion, and avionics
  • Perform structural and thermal analyses using both hand calculations and FEA
  • Lead trade studies across mechanical, fluid, and avionics subsystems with an emphasis on mass efficiency, cost, and performance
  • Collaborate with manufacturing, supply chain, and test teams to ensure designs are practical, producible, and aligned with program objectives
  • Own hardware development from concept through design, fabrication, integration, and test
  • Present technical content in internal reviews and represent the team in cross-functional and supplier/customer design reviews

Requirements
  • Bachelor's degree in mechanical engineering, aerospace engineering, or physics
  • 1+ years of experience with electromechanical design, analysis, and testing (internships and significant student project experience qualify)

Preferred Skills and Experience
  • Hands-on prototyping and mechanical assembly experience for complex systems
  • Strong foundation in engineering fundamentals including statics, dynamics, heat transfer, fluid mechanics, vibe
  • Proficiency in CAD (NX preferred), FEA (Ansys preferred), and PLM tools (Teamcenter preferred)
  • Familiarity with mechanical testing under conditions such as vibration, fatigue, shock, vacuum, and thermal loads
  • Experience collaborating across disciplines (e.g., fluids, avionics, manufacturing) to deliver integrated systems
  • Demonstrated cradle to grave ownership of technically complex projects

Additional Requirements
  • Willingness to travel up to 25% of the time

$91,800 - $140,250 a year
The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.
At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.
Benefits:
  • Health & Wellness: 100% employer-paid healthcare and pet insurance
  • Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
  • Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
  • Office Perks: Weekly paid office lunches and fully stocked breakrooms

U.S. EXPORT CONTROL COMPLIANCE STATUS
The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a "U.S. person" as defined by22 C.F.R. § 120.62or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.
EQUAL OPPORTUNITY
Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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