Mechanical Engineering Intern (Fall 2026)

United States·El Segundo

OtherMechanical Engineering Intern

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Quick Summary

Key Responsibilities

Ownership: Contribute to the design of mechanical systems for customers across various industries Technical Mentorship: Partner closely with a mentor who will provide technical guidance, feedback,

Requirements Summary

Contribute to a team culture where knowledge is shared freely. Ask for feedback, act on it, and share what you learn with those around you.

Technical Tools

OtherMechanical Engineering Intern

Responsibilities

~2 min read

→Ownership: Contribute to the design of mechanical systems for customers across various industries
→Technical Mentorship: Partner closely with a mentor who will provide technical guidance, feedback, and support throughout the entire internship
→Design & Analysis: Utilize CAD and simulation tools to develop structural, thermal, and tolerance analyses for electromechanical assemblies, using both hand calculations and FEA
→Thermal Management: Design and analyze active and passive thermal management systems for custom electronic systems and packaging solutions
→Prototyping & Testing: Participate in test campaigns to validate hardware performance under shock, vibration, thermal, and other environmental stresses

→Current enrollment in college (Mechanical Engineering, Aerospace Engineering, Physics, Robotics, or related field)
→Experience in designing, modeling, simulation, and testing of electromechanical components or assemblies
→Experience with hand calculations, finite element analysis (FEA), and computer-aided design (CAD)
→Demonstrated passion and curiosity for mechanical engineering
→Strong problem-solving skills and initiative to overcome technical challenges
→Strong written and verbal technical communication skills; ability to explain design decisions and component selections

→Applicants must be able to commit to an internship from Tuesday, September 8, 2026 to Friday, December 18, 2026
→Applicant must be willing to work 40 hours a week on-site in El Segundo, California, USA
→Applicant must be eligible to work on export controlled projects
→Job Type: Full-time (Salary)

Experience in team-based design and build projects (e.g., Formula SAE, Solar Car, CubeSat, Rover Challenge, etc.)
Familiarity with circuits and electrical engineering fundamentals
Familiarity with manufacturing processes, such as machining, injection molding, water jetting, electro-discharge machining, and 3D printing
Familiarity with generating thermal models for electronic assemblies; experience with thermal analysis of electronic devices with FEA and CFD modeling
Experience with high-precision 3D printing processes and design for complex systems
Ability to analyze and estimate structural loading from environmental sources
Experience with fatigue and thermal testing of electromechanical assemblies
Understanding of geometric dimensioning and tolerancing (GD&T)

What We Offer

~1 min read

✓Salary: $70,400 annual salary, prorated for length of internship

✓Flexible work hours and work from home policy

✓100% employer-paid health insurance (Medical, Dental, Vision) for employees + 50% dependent coverage

✓Accrued paid time off policy, accrued sick days policy, and paid company holidays

✓401(k) retirement account and employer matching (Safe Harbor 4%)

✓Housing stipend bonus

✓Electric Vehicle (EV) charging ports

✓Catered lunches, snacks, and accessible kitchen

Requirements

~1 min read

To conform with U.S. Government export control regulations, including the Export Administration Regulations (EAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Unfortunately, we are unable to provide sponsorship at this time.

If you don’t meet 100% of the preferred skills and experience, we encourage you to still apply!
Second Order Effects is proud to be an Equal Opportunity Employer; employment with SOE is governed on the basis of excellence and will not be influenced in any manner by 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.