Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

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

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Mechanical Engineering Intern — Prototyping, Testing & Design in Torrance, CA vacancy
  • $100k - $120k

     ...automate spacecraft design and production...  ...learners, and ambitious engineers. Whether your...  ...orbit, and scale internationally. We pair world‑...  ...Engineer Intern (Mechanical) As a Spacecraft...  ...spacecraft design and test. You’ll bridge...  ...Hands‑on Prototyping: Fabricate and assemble... 
    Internship
    Worldwide
    Shift work
    Weekend work

    Oligo Space

    Hawthorne, CA
    4 days ago
  • $25 - $40 per hour

    Mechanical Engineering Intern / Co-op, Rocket Motors - Fall 2026 Who We Are GITAI is a vertically...  ...-generation space systems. We design, build, integrate, and test much of our hardware in-house....  ...hardware, mechanical interfaces, prototypes, ground support equipment, or test... 
    Internship
    Hourly pay
    Permanent employment
    Temporary work
    Part time
    Work at office
    Monday to Friday
    Shift work

    GITAI Inc.

    Torrance, CA
    2 days ago
  • Second Order Effects invites a Mechanical Engineering Intern to contribute to the design, development, and testing of complex mechanical systems for customer projects. You...  ...full development lifecycle from concept to prototyping and validation, gaining hands-on experience... 
    Internship
    Remote job
    Flexible hours

    Second Order Effects

    El Segundo, CA
    2 days ago
  •  ...Order Effects, Inc. in El Segundo, CA is seeking a Mechanical Engineering Intern to help design, develop, and test complex electromechanical systems across...  ...participate from concept and simulation through prototyping, validation, and integration, gaining strong hands... 
    Internship
    Remote job

    Second Order Effects, Inc.

    El Segundo, CA
    4 days ago
  • $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,... 
    Internship
    Permanent employment
    Temporary work
    Work at office
    Immediate start
    Weekend work

    SpaceX

    Hawthorne, CA
    5 days ago
  •  ...Order Effects in El Segundo, CA, is seeking a Mechanical Engineering Intern to support the design, development, and testing of complex mechanical systems for customer...  ...development lifecycle from concept and simulation to prototyping, validation, and integration. You will use... 
    Internship

    Second Order Effects

    El Segundo, CA
    2 days ago
  • $140k - $230k

     ...Senior Propulsion Engineer plays a critical role...  ..., 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... 
    Internship
    Full time
    Immediate start
    Weekend work

    Castelion

    Torrance, CA
    4 days ago
  • Help lead mechanical design for Verustruct’s next generation...  ...Role As a Mechanical Engineer, Level II, you will help...  ...design, build, and test the machines at the...  ...advances from full-scale prototypes toward field...  ...components Work directly with internal fabrication resources... 
    Internship
    Full time

    Verustruct

    Torrance, CA
    2 days ago
  •  .... A small, highly capable engineering team applies that foundation...  ...space systems. We design, build, integrate, and test much of our hardware in-house. Electrical, mechanical, software, manufacturing,...  ...designs become real parts, prototypes, integrated systems, and tested... 
    Internship
    Full time
    Work at office
    Relocation package
    Monday to Friday

    GITAI Inc.

    Torrance, CA
    4 days ago
  • $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... 
    Internship
    Permanent employment
    Temporary work
    Weekend work

    SpaceX

    Hawthorne, CA
    7 days ago
  •  ...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 You... 
    Internship
    Full time
    Work at office

    Reflect Orbital

    Hawthorne, CA
    2 days ago
  •  ...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... 
    Internship
    Permanent employment
    Temporary work
    Weekend work

    SpaceX

    Hawthorne, CA
    3 days ago
  • $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... 
    Internship
    Permanent employment
    Temporary work
    Weekend work

    SpaceX

    Hawthorne, CA
    6 days ago
  • $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... 
    Internship
    Permanent employment
    Temporary work
    Weekend work

    SpaceX

    Hawthorne, CA
    4 days ago
  •  ...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

    Verustruct

    Torrance, CA
    2 days ago
  • $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... 
    Internship
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours

    Radiant Industries

    El Segundo, CA
    6 days ago
  • $148.43k - $204.09k

     ...age. Every day, our teams design, manufacture, and assemble...  ...industries. Our integrated engineering and manufacturing platform...  ...built.PurposeAs a Staff Opto-Mechanical Engineer, you will serve as...  ...optical characterization, prototype testing, design-of-experiments, and... 
    Temporary work
    Work at office

    Divergent

    Torrance, CA
    4 days ago
  • GITAI Inc. is seeking a Mechanical Engineering Intern / Co-op for Fall 2026 in Torrance, CA. You...  ...creating CAD models, drawings, and prototypes while coordinating with...  ...gain hands-on experience across design, assembly, testing, and documentation, collaborating... 
    Internship

    GITAI Inc.

    Torrance, CA
    4 days ago
  •  ...Every day, our teams design, manufacture, and...  .... Our integrated engineering and manufacturing...  ...hardware, building test methods from the...  ...who balances deep mechanical fundamentals with...  ...with suppliers and internal teams to ensure manufacturability...  .... Support prototype assembly and... 
    Temporary work
    Work at office

    Divergent

    Torrance, CA
    3 days ago
  • $100k - $115k

    New Graduate Engineer, Mechanical (Starshield) Hawthorne, CA SpaceX was founded under the belief that a future where humanity...  ...extreme ownership through detailed and thorough design, hardware bring-up/characterization/testing, and requirements generation/verification -... 
    Internship
    Permanent employment
    Temporary work

    SPACE EXPLORATION TECHNOLOGIES CORP

    Hawthorne, CA
    2 days ago
  • $105k - $150k

     ...applications. Robinson is an engineering focused organization...  ...flight. The Seat Design Engineer is a member of...  ..., functional mechanisms, foam, and covers from...  ...and manufacturing of prototype articles. Develop requirements...  ...Identify, plan, and lead tests for components and... 
    Work experience placement
    Shift work

    Robinson Helicopter Co

    Torrance, CA
    2 days ago
  •  ...internship working alongside our mechanical team on real hardware for...  ...is hiring a paid mechanical engineering intern to support the design, fabrication, assembly, and testing of mechanical subsystems for...  ...our hardware team on live prototype development and own scoped projects... 
    Internship

    Verustruct

    Torrance, CA
    2 days ago
  •  ...that focuses on short, iterative design cycles, rapid testing in development, and modern...  ...conflicts. Position Summary The Engineering Project Specialist - Mechanical supports the planning, coordination...  .... Track design release status, prototype builds, testing activities, and... 
    Full time

    Cantos Ventures

    Torrance, CA
    18 hours ago
  • $30 per hour

    Mechanical Engineer Fall 2026 Co - op Assist in designing and testing missile subsystem components and validating hardware prototypes Location: Torrance, California, United States Compensation: $30...  ...generation missile systems. As an intern, you'll contribute directly to... 
    Internship
    Hourly pay
    Permanent employment
    Temporary work
    Local area
    Immediate start
    Relocation

    Front Door Defense

    Torrance, CA
    2 days ago
  •  ...Build Reliability Engineer (Propulsion) at Impulse...  ...between design requirements, manufacturing...  ...development testing to guide design decisions...  ...’s degree in Mechanical Engineering, Aerospace...  ...development or prototype-to-production...  ...capabilities and internal equity. In addition... 
    Permanent employment
    Full time
    Work at office

    Impulse Space

    Redondo Beach, CA
    11 days ago
  • $30 - $40 per hour

     ...enriches uranium. We are designing, building, and...  ...world-class team of engineers and operators is applying...  ...As a General Matter Mechanical Engineering Intern, you will gain hands...  ..., building, and testing the mechanisms and mechanical...  ...mechanical design, prototyping, testing, and cross-... 
    Internship
    Hourly pay
    Weekend work

    General Matter

    Torrance, CA
    1 day ago
  • $105.4k - $131.8k

     ...energy efficiency. We design, manufacture and sell highly engineered turbocharging, air...  ...and cross-functional internal teams. This is an exciting...  ...DVP&R by preparing prototype hardware, testing, analysis, and...  ...Engineering Degree in Mechanical Engineering, Automotive... 
    Temporary work
    Worldwide
    Flexible hours

    Garrett Advancing Motion

    Torrance, CA
    6 days ago
  • $35 per hour

     ...Electrical Engineer Intern - Fall 2026 (Avionics)Castelion is bringing...  ...on short, iterative design cycles, rapid testing in development, and modern...  ...will directly support rapid prototyping and real-world flight...  ...with PCB layout, firmware, mechanical, systems, and test... 
    Internship
    Hourly pay
    Permanent employment
    Temporary work
    Local area
    Relocation

    Castelion

    Torrance, CA
    4 days ago
  •  ...Every day, our teams design, manufacture, and assemble...  .... Our integrated engineering and manufacturing platform...  ...PurposeA Senior/Staff Mechanical Engineer on the...  ...designing, building, testing, and deploying complex...  ...appropriate analysis, prototyping, assembly, testing, troubleshooting... 
    Contract work
    Temporary work
    Work at office
    Flexible hours

    Divergent

    Torrance, CA
    4 days ago
  • $140k - $230k

     ...Senior Mechanical Design EngineerTorrance, California, United States$ 1...  ...iterative design cycles, rapid testing in development, and modern...  ...Senior Mechanical Design Engineer with a full stack, Responsible...  ...: Support iterative prototyping cycles every four weeks for... 
    Permanent employment

    Castelion

    Torrance, CA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Mechanical Engineering Intern — Prototyping, Testing & Design. Be the first to apply!