Mechanical Engineering Intern Fall 2025

Company Overview:
Second Order Effects (SOE) is an engineering consulting firm that transforms uncertainty into fully functional hardware and software. We work on projects at all stages of development; we perform analysis build prototypes and take products to market. Our team solves highimpact problems across numerous industries including automotive aerospace consumer electronics industrial automation biomedical and green energy. Our designs control rocket engines manage satellite communications instrument fusion reactors and are enjoyed by consumers around the world. The only thing we wont build is weapons.

Founded in 2016 Second Order Effects has 50 employees (and counting! in offices in El Segundo California and Redmond Washington. Weve worked with >130 clients on > 300 projects as a partner on retainer or on demand.

How do we do this We empower others build the right thing lead with curiosity and own the outcome. Learn more at !

Job Overview:
As a Mechanical Engineering Intern you will play a handson role in designing developing and testing complex mechanical systems for customerfacing projects. In this role you will contribute to the full development lifecycle from initial concept and simulation through prototyping validation and integration. Whether its designing mechanisms and enclosures performing structural analysis or designing precision assemblies for manufacturability youll be making real contributions to complex systems. This internship is designed to accelerate your technical growth giving you the chance to build a strong foundation in mechanical engineering while making an immediate impact.

What You Will Do:

• 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

What You Will Need:

• 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 computeraided design (CAD)
• Demonstrated passion and curiosity for mechanical engineering
• Strong problemsolving skills and initiative to overcome technical challenges
• Strong written and verbal technical communication skills; ability to explain design decisions and component selections

What Would Be Useful:

• Experience in teambased 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 electrodischarge 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 highprecision 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)

Benefits:

• Compensation range of $69350$69850
• Flexible work hours and work from home policy
• 100 employerpaid 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
• Daily catered lunches snacks and accessible kitchen

Additional Requirements:

• Applicants must be able to commit to an internship from Tuesday September 2 2025 to Friday December 19 2025
• Applicant must be willing to work 40 hours a week onsite in El Segundo California USA
• Applicant must be eligible to work on export controlled projects
• Job Type: Fulltime (Salary)

Export Control Requirements:

• 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 dont 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.