Mechanical Engineering Intern — Prototyping, Testing & Design
General Matter
General Matter is seeking a Mechanical Engineering Intern to design, build, and test mechanisms and structures enabling our enrichment technology. You will work with engineers across electrical, software, chemical, manufacturing, nuclear, materials, and physics disciplines to move hardware from concept through build and test. The role offers hands-on experience in mechanical design, prototyping, testing, and cross-functional engineering, with opportunities to contribute meaningfully to real #J-18808-Ljbffr General Matter
- Arc is seeking a Mechanical Engineering Intern for the summer in Torrance, CA. Join a startup building electric marine platforms and work on hardware design, prototyping, and testing under experienced engineers. You’ll design components, contribute to product development...InternshipSummer work
- Arc is seeking a Mechanical Engineering summer intern for 2027 in Torrance, CA. You’ll join the Mechanical Engineer team, taking... ...of defined projects from concept to test, working with mentorship to design, prototype, and validate hardware for marine applications...InternshipSummer internship
- Arc is seeking a summer Electrical Engineering intern to join our team in Torrance, CA. You will diagnose problems, design hardware, prototype, test, and contribute to high-volume manufacturing as part of our fast-moving startup. The role emphasizes hands-on building, testing...InternshipSummer internship
- ...integrated customer decision engines will create the most... ..., CA. The Mantari Mechanical Engineering Internship... ...weather applications. Interns will join a fast-paced... ...environment, collaborating on design, analysis, and test efforts for both prototype and production hardware...InternshipFull timeSummer internship
- ...alongside our team as we design, build, and test fission... ...and underwater. Our interns contribute to real work... ...You'll work alongside engineers, operators, and other... ...Antares is seeking a Mechanical Design Intern to support... ...drawings, analysis, prototyping, or hardware testing...InternshipPermanent employmentContract workWork experience placementSummer workSummer internshipRemote workRelocationMonday to Friday
$30 per hour
Tooling/Ground Support Engineering Intern (Summer 2027)... ...you will support the design, development, and implementation... ...spacecraft and test systems from clean sheet... ...the development and prototyping of spacecraft... ...basic principles of mechanics, materials, and manufacturing...InternshipPermanent employmentFull timeSummer work- ...Senior Propulsion Engineer Why Castelion... ..., owning the design of solid rocket motor... ...engage in the assembly, testing, and troubleshooting of prototypes and production... ...drawings, adhering to internal standards and ASME... ...materials engineering, mechanical engineering or...InternshipFull timeImmediate startWeekend work
$100k - $130k
...on Mars. NEW GRADUATE ENGINEER, STARSHIP COMPONENTS... ...flap/fin actuators. They design, machine, build, and test components to operate in... ...discipline. Prove out prototypes in R&D, define hardware limits... ...physics. ~1+ years of mechanical and/or fluids engineering...InternshipTemporary workSummer workFlexible hoursWeekend work$100k - $117.5k
...life on Mars.BUILD RELIABILITY ENGINEER (FALCON/STARSHIP VALVES AND... ..., guiding the hardware from design to production and operation.... ...of key characteristics, prototype testing for functionality and manufacturability... ...tooling for work access, mechanical/avionics/propulsion testing,...InternshipPermanent employmentTemporary workWork at officeImmediate startWeekend work$100k - $117.5k
...Mars. BUILD RELIABILITY ENGINEER (FALCON/STARSHIP VALVES AND... ..., guiding the hardware from design to production and operation.... ...identification of key characteristics, prototype testing for functionality and... ...tooling for work access, mechanical/avionics/propulsion testing,...InternshipTemporary workWork at officeImmediate startWeekend work- Mechanical Engineering Intern (Summer 2027) Amca is building America’s new industrial base. Since... ...nationwide, including our advanced prototyping and testing headquarters in El Segundo, and deliver... ...Abrams. Overview The Mechanical Design Engineering Intern works alongside...InternshipPermanent employmentFull timeSummer work
$100k - $160k
...drone industrial base. We design and manufacture high-... ...systems that are tested in combat, iterated at... ...democracy. We’re hiring engineers, operators, and builders... ...be doing As a Mechanical Engineer at Neros, you... ...software, FEA tools, prototyping, and engineering first...InternshipFull timeWork experience placement$20 - $30 per hour
...firing a thruster. Our Intern Program Space Kinetic... ...program is designed to identify top early... ...ll Do As an Aerospace/Mechanical Engineering Intern you will acquire... ...help design and build prototypes for Space Kinetic’s core... ..., manufacturing, and testing of space systems and/...InternshipPermanent employmentFull timeFlexible hours$100k - $117.5k
...life on Mars.TURBOMACHINERY ENGINEER (RAPTOR)SpaceX is seeking a highly... ...Engineer to join our team in designing and developing the next... ...aerodynamic/hydrodynamic and mechanical design and demonstrate a broad... ...RESPONSIBILITES:Design, build and test turbopumps for liquid fueled...InternshipPermanent employmentTemporary workWeekend work- ...requirements you meet. Responsibilities Own the design, development, analysis, manufacturing, and testing of novel spacecraft components Build complete... ...on fully completing and shipping your work Prototype and iterate rapidly Ideal Qualifications...InternshipFull timeWork at office
$100k - $115k
...enabling human life on Mars. NEW GRADUATE PROPULSION ENGINEER, RAPTOR Join the forefront of space exploration... ...real-world challenges in propulsion systems, from mechanical design and analysis to manufacturing and testing – this is your opportunity to help build the...InternshipOdd jobPermanent employmentTemporary workSummer workWeekend work$105k - $140k
...human life on Mars.ELECTRICAL ENGINEER, BATTERY (FALCON & DRAGON)As... ...disciplines with a focus on design, reliability, and manufacturing... ...to electrical schematics and mechanical drawings that improve... ...and manufacturabilityDesign test setups and execute hardware validation...InternshipPermanent employmentTemporary work$105k - $140k
...enabling human life on Mars.BATTERY ENGINEER (FALCON & DRAGON)As a Battery... ...disciplines with a focus on design, reliability, and... ...to electrical schematics and mechanical drawings that improve reliability... ...and manufacturabilityDesign test setups and execute hardware validation...InternshipPermanent employmentTemporary work- ...enabling human life on Mars.MECHANICAL ENGINEER (STARSHIP COMPONENTS MANUFACTURING... ...team assembles, tests, troubleshoots, and delivers... ...valves to flap/fin actuators. We design and build valves, regulators... ...development and design engineers, internal machine shops, and external...InternshipPermanent employmentTemporary workWeekend work
$100.4k
...vehicle, electric, digital and design teams with our global... ...feasibility studies. - Support prototype builds, test setup, instrumentation, and... .... - Work with test engineers and subject matter experts... ...Bachelor's or Master's degree in Mechanical Engineering, Chemical...InternshipImmediate startVisa sponsorshipFlexible hours$100k - $130k
...ultimate goal of enabling human life on Mars. NEW GRADUATE ENGINEER, MECHANICAL DESIGN (STARSHIELD) Our SpaceX team is working on the toughest... ...and thorough design, hardware bring-up/characterization/testing, and requirements generation/verification - ultimately...InternshipTemporary work- ...Mechanical Design Engineer II (Mid-Level) Rubbercraft is seeking a Mechanical... ...design, development, and testing of elastomeric components... ...production. Support prototype builds, product testing, and... ...subject to the International Traffic in Arms Regulations...InternshipPermanent employmentTemporary workFlexible hours
$55.2k - $126k
...Job Number: R0250768 Mechanical Build Engineer The Opportunity: Join... ...Segundo, CA, where you'll design, prototype, and deliver innovative... ...lab-based develop mental testing and test data acquisition... ...protected by applicable federal, state, local, or international law.InternshipFull timeContract workPart timeLocal areaRemote work$20k
...ultimate goal of enabling human life on Mars.MECHANICAL ENGINEER (STARSHIELD)Starshield leverages... ...security efforts. While Starlink is designed for consumer and commercial use, Starshield... ...environmental and performance testing on hardware to validate analysis and demonstrate...InternshipPermanent employmentTemporary workWeekend work$100k - $130k
...Mechanical Design Engineer El Segundo, CA Amca is building America's new industrial base... ...nationwide, including our advanced prototyping and testing headquarters in El Segundo, and deliver... ...which is subject to the International Traffic in Arms Regulations (ITAR)...InternshipFlexible hours$20k
...on Mars.HARDWARE RELIABILITY ENGINEER, COMPONENTS (STARSHIELD)Starshield... ...efforts. While Starlink is designed for consumer and commercial... ..., Electronic, and Electro-mechanical/Electro-optical (EEE) components... ...and implement accelerated tests to mitigate risks and qualify...InternshipPermanent employmentTemporary workWeekend work- ...is offering a paid internship for mechanical engineering students in Torrance, California. Interns will work with the mechanical team on designing and testing mechanical subsystems for... ...with CAD modeling, fabrication, and prototype development. This is an excellent...Internship
- Castelion is seeking a Winter/Spring 2027 Mechanical Engineering Internship Co-Op in Torrance, CA. You will design, analyze, and test components for missile subsystems,... ...electronics, while supporting simulations, prototyping, and system integration in a fast-paced startup...Internship
- ...Every day, our teams design, manufacture, and... .... Our integrated engineering and manufacturing... ...Senior Mechanical Engineer develops... ...for Divergent’s internally developed Monolith... ...detailed design, prototyping, validation, release... ...prototyping, assembly, testing, troubleshooting,...Contract workTemporary workWork at office
$158k - $219.45k
...leverages modern software engineering to rapidly deliver... ...Radiant is on track to test its first reactor at... ...rotating hardware from design into reality. This is... ...assembly and integration of prototype and first-article... ...:Bachelor’s degree in Mechanical Engineering or a related...InternshipFull timeSummer workImmediate startRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineering Intern — Prototyping, Testing & Design. Be the first to apply!


