Mechanical Engineering Intern
Solcoa Industries
Making the Metals Powering the World
Solcoa Industries is an American rare earth metals producer headquartered in Alameda, California. We convert rare-earth oxides and magnet manufacturing scrap into the high-purity metals and alloys at the foundation of electrification, automation, and defense — the materials inside every fighter jet, EV, wind turbine, and phone.
For decades, the West has depended on China to produce these materials. Solcoa is rebuilding that supply chain at home: we're one of the very few producers outside China, and the only one developing new chemistries and a proprietary process to produce these metals at lower cost than conventional routes — without the harmful emissions.
The Role — Mechanical Engineering Intern
Join our hardware team and help turn designs into working systems. You'll support reactor subsystem design in CAD, assist with prototype builds and testing, and keep our documentation tight—working with engineers, machinists, and technicians to move quickly from concept to operation.
What You'll Do
Update and create CAD (Fusion) models/drawings, BOMs, and simple GD&T for thermal, vacuum, and handling subsystems.
Assist with prototype fabrication and assembly: cutting, drilling, tapping, fitting, and basic machining.
Help select components (valves, fittings, heaters, sensors) for high-temperature and vacuum environments under engineer guidance.
Run tests, collect/clean data, and summarize results to inform design iterations.
Perform leak checks, pressure tests, maintain organized logs.
Support vendor outreach, quotes, and purchasing; keep parts and tooling organized.
Contribute to safety-first culture and continuous improvement on the shop floor.
What You Bring
Required
Pursuing a BS/MS in Mechanical Engineering or related field.
Working proficiency with CAD (Fusion preferred; SolidWorks ok).
Hands-on build experience from labs, clubs, internships, or personal projects (machine shop tools, 3D printing, or fabrication).
Detail-oriented, disciplined documentation, and reliable follow-through.
Comfortable in a fast-paced, hardware-centric environment and willing to get your hands dirty.
On-site availability; able to start soon.
Preferred
Exposure to high-temperature or vacuum systems (furnaces, pumps, flanges) and basic thermal/fluids coursework.
Simple analysis skills (hand calcs, spreadsheets; FEA/thermal tools a plus).
Welding or TIG familiarity; basic machining on mill/lathe.
Python/MATLAB for data analysis.
Compensation & Benefits
Competitive hourly pay
Company-provided lunch daily
J1 Visa sponsorship available if needed
- ...Mechanical Engineering InternFoundation is developing the future of general purpose robotics with the goal to address the labor shortage. Our... ...component is custom-designed for our platform, which means this intern will touch real CAD, real fabrication, and real hardware...Internship
Foundation
San Francisco, CA1 day ago $29 per hour
...Mechanical Engineer Intern (Fall 2026)Astranis builds advanced satellites for high orbits, expanding humanity's reach into the solar system. Today, Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe— large enterprises...InternshipHourly payPermanent employmentFull timeAstranis
San Francisco, CA3 days ago- .... Our robots operate in production settings, which means mechanical design must be practical, manufacturable, and tightly integrated... ...as it does designing. About the Role As a Mechanical Engineering Intern at Droyd, you will work hands-on on real robotic hardware....InternshipFull timePart time
Droyd Robotics
San Francisco, CA2 days ago $1,750 per week
...recruited a team of over 400 world-class engineers. We all work out of our (legendary) San... ...student, please apply to join us as an Intern. Role: Work on an interdisciplinary... ...-year degree in Electrical Engineering, Mechanical Engineering (or equivalent technical...InternshipPermanent employmentFull timePart timeWork at officeAstranis
San Francisco, CA1 day ago$30 - $34 per hour
...Mechanical Engineering InternWe are seeking a Mechanical Engineering Intern to join Heirloom's Mechanical Team for the upcoming Fall/Water for a 10-12 week internship. In this role, you will support the design, build, and deployment of next-generation carbon removal systems...InternshipHourly payFull timeRelocation packageHeirloom Carbon
Brisbane, CA3 days ago$29 per hour
Mechanical Engineer Intern (Fall 2026) Internships at Astranis typically last twelve weeks and are hourly roles designed for students currently enrolled at a four‑year university. As an Intern, you will be given an opportunity to work on hard problems and contribute to...InternshipHourly payPermanent employment- ...innovative company located in San Francisco. We engineer and manufacture custom vacuum electronic... ...ranging from ultra-high precision mechanical alignment techniques to advanced... ...00.00 1 month ago Mechanical Engineer — Intern (Fall 2025) South San Francisco, CA $95,...InternshipPermanent employmentFull timeWork experience placementWorldwide
Dymenso
San Francisco, CA5 days ago - ...ever fully inventoried. We’re a small team of practical engineers with a long‑term vision. We focus on real, messy, on‑the‑... ...we’d love to learn more about you! The Role Join us as a Mechanical Engineering Intern on a fast‑moving team of seven. Here, you’ll build things...InternshipFull timePart timeSummer work
$29 per hour
Pow.bio is looking for a CAD Engineer/Librarian Intern for Fall 2026 in San Francisco, California. This internship offers a chance to work on... ...Candidates should hold a B.S. degree or pursue an M.S. in mechanical or aerospace engineering. The role emphasizes hands-on hardware...InternshipHourly payPermanent employment- ...environments. Our robots operate in production settings, which means mechanical design must be practical, manufacturable, and tightly... ...as it does designing. About the role As a Mechanical Engineering Intern at Droyd, you’ll work hands-on on real robotic hardware. You...InternshipFull time
- ...Spend a summer designing and prototyping real mechanical hardware alongside the founding hardware team. What you'll do Contribute... ...through implementation and review. Work directly with senior engineers on prototyping, testing, and design for manufacturing. What...InternshipFull timeSummer work
Blackstar Computers, Inc
San Francisco, CA14 hours ago - About the role We are seeking a motivated and detail-oriented Engineering Intern to support our hardware teams. This internship provides a... ...opportunity to gain hands‑on experience in embedded systems, mechanics, systems engineering, software development, and propulsion...Internship
- A robotics company in San Francisco is seeking a Mechanical Engineering Intern to support mechanical subsystem design and work hands-on with robotic hardware. The role involves creating CAD models, building prototypes, and integrating designs with electronics. Candidates...Internship
- Astranis Space Technologies Corp. is seeking a Mechanical Engineer Intern for Fall 2026 in San Francisco. Internships are twelve weeks and hourly, designed for students enrolled in a four‑year university. The role offers hands‑on design and involvement in hardware/software...InternshipHourly pay
- ...we think about satellite architecture. They’re looking for a Mechanical Engineer with a passion for hands-on design and prototyping - someone... ...$110,000.00-$180,000.00 4 weeks ago Mechanical Engineer — Intern (Fall 2025) South San Francisco, CA $95,000.00-$115,000.00 3...InternshipFull timeRelocation
$108k - $126k
...Mechanical Engineering Intern The fab2 team can build anything. We design all the hardware and software needed to make chips and we make the fabs, tools, and components ourselves. We're looking for exceptional, hands-on people who can iterate to the limits of what's...InternshipHourly payWork at officeVisa sponsorshipNight shiftFab2
San Francisco, CA2 days ago- Heirloom Carbon is offering a Mechanical Engineering Intern role for Fall/Winter, 10-12 weeks, in California. You will help design, build, and deploy next‑generation carbon removal hardware with hands‑on ownership and exposure to industrial‑scale systems. You will develop...Internship
- Mechanical Engineering Internship Talent Pool helps connect you with companies actively recruiting for engineering-focused internships. This is not an internship at RippleMatch. By applying to this talent pool, you’ll be considered for multiple mechanical engineering...Internship
- Moss in San Francisco is seeking a Mechanical Engineering Intern to join their innovative team. You will work on developing and testing new mechanical architectures for robotic systems designed for harsh environments. Applicants should have hands-on experience with hardware...Internship
- Heirloom is seeking a Mechanical Engineering Intern to join the Mechanical Team for a 10-12 week Fall/Winter program. You will support the design, build, and deployment of next‑generation carbon removal systems, gaining hands‑on ownership with hardware at a climate tech...Internship
- Heirloom is seeking a Mechanical Engineering Intern to join the Mechanical Team for a 10-12 week Fall/Winter internship in Brisbane, CA. You will support the design, build, and deployment of next-generation carbon removal systems, gaining hands-on ownership in a fast-paced...Internship
$20 - $55 per hour
...in prototype and production environments. Required Qualifications Currently pursuing a Bachelor’s or Master’s degree in Mechanical Engineering, Electrical Engineering, Robotics, Mechatronics or equivalent degree. Proficiency in designing parts and assemblies using...InternshipFull timePart timeSummer workImmediate start- A cutting-edge semiconductor startup in San Francisco is seeking a Mechanical Engineering Intern for the fall term. This position offers a unique opportunity to engage in interdisciplinary projects within semiconductor fabrication, with responsibilities ranging from design...InternshipHourly pay
- A technology startup in San Francisco is seeking a full-stack Mechanical Engineering Intern for the fall term. This role involves designing and prototyping semiconductor fabrication equipment, along with detailed analysis and documentation. The ideal candidate is pursuing...InternshipHourly pay
- Moss in San Francisco is seeking a Mechanical Engineering Intern to join a dynamic team focused on building innovative robotic systems. You will be involved in the full hardware development cycle, tackling structural design, thermal performance, and prototype testing. The...Internship
$35 per hour
...their digital world. Team Description: The Brain Interfaces Mechanical Engineering Team is responsible for the design, build, and testing of all... ...and Responsibilities: As a Mechanical Engineering Intern, you will support the design and production of hardware solutions...InternshipHourly payFull timeTemporary workWork experience placementFlexible hours- Swope Design Solutions in the San Francisco Bay Area seeks a Full-Time Mechanical Engineering Intern for Fall/Winter, on-site in San Francisco. You will work on real client projects, assist in design, prototyping, and manufacturing processes, and gain firsthand exposure...InternshipFull time
- ...Accounting Intern (Fall 2026)2026 InternshipsSouth San Francisco, California, USAApplications Engineer Intern (Fall 2026)2026 InternshipsSouth San Francisco, California, USAAutonomy Droid Perception SWE - OffboardSystems EngineeringSouth San Francisco, California, USABilling...InternshipWork at office
ZipLine
South San Francisco, CA3 days ago $35 per hour
...digital world. Team Description The Robotics & Surgery Engineering Team is developing our next-generation surgical platform... ...their maximums. Job Description and Responsibilities As a Mechanical Engineering Intern at Neuralink, you will have the opportunity to design and...InternshipHourly payPrice workFull timeTemporary workWork experience placementFlexible hours- Swope Design Solutions is a rapidly growing mechanical engineering and product design firm located in the San Francisco Bay Area that specializes... ...looking for an exceptional Full-Time Mechanical Engineering Intern available for the Fall/Winter to work full-time on-site in...InternshipFull timeWork experience placementSummer workWork at officeMonday to Friday
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineering Intern. Be the first to apply!
- mechanical installation San Francisco, CA
- mechanical foreman San Francisco, CA
- mechanical sales San Francisco, CA
- mechanical commissioning San Francisco, CA
- mechanical engineer hvac San Francisco, CA
- mechanical design San Francisco, CA
- entry level mechanical design San Francisco, CA
- mechanical solidworks San Francisco, CA
- mechanical cad operator
- entry level mechanical technologist