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Internship Manufacturing Engineering Jobs in California

Hermeus

Manufacturing Engineer, New Grad

Los Angeles, CA · On-site

$91K - $112K/yr

... Engineering, or a related technical discipline. * Hands-on experience through internships, research, capstone projects, student competition teams, labs, or manufacturing environments. * Exposure to ...

Light Composites, Inc.

Manufacturing Engineer

Poway, CA · On-site

$70K - $85K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Use MRPeasy ERP to track work orders, log cycle times, and communicate job status Requirements * 2+ years of manufacturing engineering experience, or relevant engineering degree with internship/co-op ...

Light Composites, Inc.

Manufacturing Engineer

Poway, CA · On-site

$70K - $85K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Use MRPeasy ERP to track work orders, log cycle times, and communicate job status Requirements * 2+ years of manufacturing engineering experience, or relevant engineering degree with internship/co-op ...

Mach Industries

Manufacturing Engineer

Victorville, CA · On-site

$85K - $170K/yr

  • Medical

  • Life

  • Retirement

Bachelor's degree in mechanical, aerospace, manufacturing engineering, or equivalent experience. * 2+ years in production manufacturing, process engineering, or industrialization (internship and ...

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All JobsManufacturing Engineering JobsInternship Manufacturing Engineering JobsInternship Manufacturing Engineering Jobs in California

Internship Manufacturing Engineering information

What is the difference between Internship Manufacturing Engineering vs Manufacturing Engineer?

AspectInternship Manufacturing EngineeringManufacturing Engineer
CredentialsTypically pursuing or recently completed a relevant degree; no professional certification requiredBachelor's degree in engineering or related field; professional certifications optional
Work EnvironmentInternship setting, often in manufacturing plants or corporate offices, supervised closelyFull-time role in manufacturing facilities, responsible for process improvements and production oversight
ResponsibilitiesAssisting with projects, learning manufacturing processes, supporting engineering teamsDesigning, implementing, and optimizing manufacturing processes, troubleshooting production issues

In summary, an Internship Manufacturing Engineering is a temporary, learning-focused position for students or recent graduates, while a Manufacturing Engineer is a full-time professional responsible for ongoing manufacturing process improvements and operations.

What does an internship manufacturing engineer do?

As a Manufacturing Engineering intern, you will typically be involved in hands-on projects such as process improvement initiatives, assisting with the design and implementation of new production workflows, and supporting quality assurance efforts. You may also work on data collection and analysis to identify areas for efficiency gains, collaborate with production teams to troubleshoot equipment issues, and help document standard operating procedures. This role offers a valuable opportunity to gain exposure to various aspects of manufacturing operations while working closely with experienced engineers and cross-functional teams.

What skills and qualifications are needed to thrive as an internship manufacturing engineer?

To thrive as a Manufacturing Engineering Intern, you generally need a background in mechanical or industrial engineering, strong analytical skills, and coursework or experience in manufacturing processes. Familiarity with CAD software, lean manufacturing principles, and basic knowledge of ERP systems are commonly expected and may be supported by relevant certifications or training. Strong problem-solving abilities, communication, and teamwork skills help interns collaborate effectively and adapt to dynamic production environments. These skills and qualities are essential for contributing to process improvements, ensuring product quality, and supporting efficient manufacturing operations.

What is an internship manufacturing engineering?

Internship Manufacturing Engineering positions are temporary roles designed for students or recent graduates to gain hands-on experience in the manufacturing engineering field. Interns typically assist with process improvement, production support, quality assurance, and project management tasks within a manufacturing environment. These internships offer exposure to real-world engineering challenges, use of industry tools, and collaboration with experienced engineers, helping interns develop practical skills and industry knowledge. The experience can be valuable for securing a full-time role after graduation.

What are the most commonly searched types of Manufacturing Engineering jobs in California?

The most popular types of Manufacturing Engineering jobs in California are:

What cities in California are hiring for Internship Manufacturing Engineering jobs?

Cities in California with the most Internship Manufacturing Engineering job openings:

Internship Manufacturing Engineering jobs near you
Infographic showing various Internship Manufacturing Engineering job openings in California as of August 2026, with employment types broken down into 79% Full Time, 15% Part Time, 2% Temporary, 3% Contract, and 1% Nights. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution.

Manufacturing Engineer, New Grad

Hermeus

Los Angeles, CA • On-site

$91K - $112K/yr

Full-time

Re-posted 23 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.

About the Role

Hermeus is seeking a hands-on, highly motivated New Grad Manufacturing Engineer to support the development, fabrication, and integration of advanced aerospace hardware, including weld-related processes, across our R&D and prototype manufacturing environments.

In this role, you will work closely with design, manufacturing, test, tooling, and integration teams to help bring complex welded assemblies from concept to hardware. This is an ideal opportunity for a recent graduate who has strong hands-on experience through internships, research, capstone projects, student competition teams, or manufacturing environments and is excited to build, test, learn quickly, and contribute directly to flight hardware development.

Responsibilities:
  • Support the development and improvement of weld processes, parameters, fixtures, and joint designs for advanced aerospace hardware.
  • Assist with R&D and prototype builds of welded aircraft structures, tanks, propulsion assemblies, and related hardware.
  • Work closely with technicians, manufacturing engineers, and design engineers to support fabrication, assembly, and integration activities.
  • Help evaluate weld quality through inspection results, test data, and hands-on troubleshooting.
  • Support weld qualification efforts, including mechanical testing, NDE inspection, documentation, and data review.
  • Contribute to root cause investigations related to weld quality, material compatibility, process variation, and hardware performance.
  • Partner with design and manufacturing teams to improve weld joint design, tooling, and assembly methods for manufacturability, precision, and repeatability.
  • Assist with process control improvements using feedback from weld testing, NDE results, and build data.
  • Support research and evaluation of welding technologies, materials, and joining methods for potential use in hypersonic aircraft manufacturing.
  • Collaborate with tooling, automation, and integration teams to reduce distortion, improve build accuracy, and accelerate production timelines.
Requirements:
  • Graduating or Graduated with a Bachelor’s degree in Mechanical Engineering, Welding Engineering, Materials Science, Manufacturing Engineering, or a related technical discipline.
  • Hands-on experience through internships, research, capstone projects, student competition teams, labs, or manufacturing environments.
  • Exposure to fabrication, manufacturing, testing, or integration of mechanical or aerospace hardware.
  • Strong problem-solving skills and willingness to work directly on the shop floor with technicians and engineers.
  • Ability to thrive in a fast-paced, execution-focused environment.
  • Strong communication skills and ability to work cross-functionally across engineering and manufacturing teams.
Preferred Skills and Experience:
  • Hands-on welding, fabrication, or joining experience.
  • Experience with aerospace structures, propulsion hardware, tanks, pressure vessels, or structural assemblies.
  • Familiarity with welding processes such as gas tungsten arc welding, gas metal arc welding, laser beam welding, electron beam welding, plasma arc welding, resistance welding, friction-stir welding, or orbital tube welding.
  • Exposure to nickel-based alloys, stainless steel, titanium, copper, aluminum, or other aerospace materials.
  • Understanding of weld joint design, mechanical tolerances, thermal effects, and structural loading.
  • Experience with NDE, mechanical testing, metallography, brazing, or other joining processes.
  • Experience on hands-on engineering teams such as FSAE, rocketry, robotics, aerospace clubs, or similar build-focused organizations.
  • Interest in automation, robotic welding, tooling, and manufacturing process improvement.
Physical Requirements:
  • Ability to work at a computer for extended periods of time.
  • Ability to regularly move through office, manufacturing, and test facility environments.
  • Ability to work in hands-on manufacturing environments as needed to support hardware builds, inspections, and troubleshooting.

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 by 22 C.F.R. § 120.62 or 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.