56 mechanical engineering internship jobs at 36 companies in San Francisco, CA

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Mechanical Engineering Internship
Alameda, California, United States
$30/hr OnsiteFull Time, Internship
Longshot Space Technologies
Longshot Space Technologies: Developing ground-based kinetic launch systems for hypersonic and space applications.
Pursuing B.S. or M.S. in Mechanical/Aerospace Engineering, experience with hand tools and machining, proficiency in SolidWorks, basic fluid dynamics/structures knowledge, and mechanical troubleshooting skills.
SolidWorks
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Nuclear Engineering Internship - Summer 2027
Alameda or Albuquerque or Oak Ridge
$30-$34/hr OnsiteInternship
Kairos Power
Kairos Power: Developing fluoride salt-cooled nuclear reactors for clean energy.
Current student in engineering (nuclear/mechanical/materials/chemical/engineering science) with coursework or experience in reactor physics, thermal hydraulics, CFD, or related areas; familiarity with Python/MATLAB/C++/Fortran and Microsoft Office; strong communication and problem-solving skills.
Python, MATLAB, C++, Fortran, Microsoft Outlook, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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Internship - Manufacturing Engineering (Fall)
San Carlos, California, United States
$35/hr OnsiteInternship
1X
1X: Manufacturing safe, general-purpose humanoid robots for home and work.
Currently studying engineering or a related field with hands-on manufacturing or mechanical engineering experience, basic CAD skills, and ability to perform physical setup, assembly, and post-processing work.
SolidWorks, Onshape, CAD
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Mechanical Engineer
Santa Clara, California, United States
$124k-$171k/yr OnsiteFull Time
Applied Materials
Applied MaterialsNASDAQ: AMAT: Produces equipment and services for chip and display manufacturing.
PhD in Mechanical Engineering or related field; GPA 3.5+; 3D CAD; mechanical/thermal/flow analysis; internship or leadership experience; strong problem solving.
NX, UG, FEA
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Spring '27 Intern - Mechanical Engineering
San Francisco, California, United States
OnsiteMultiple Commitments Available
Moss
Moss: Builds robots to scan trees for automated farm inventory.
Hands-on hardware experience, structural analysis knowledge, proficiency in CAD and FEA, understanding of GD&T, sensor and systems integration experience, and ability to build and debug prototypes.
CAD, FEA, GD&T, DFM
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2027 Summer Mechanical Automation Engineering Intern
Milpitas, California, United States
$27-$31/hr OnsiteInternship, Full Time
MKS
MKSNASDAQ: MKSI: Provides advanced manufacturing technologies and foundational process control solutions.
Currently pursuing a relevant undergraduate degree; entry-level SolidWorks and 3D printing knowledge; mechanics and actuator design understanding; basic programming, preferably Python; optics experience and strong communication skills.
SolidWorks, Python, 3D printing, CAD
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Entry-level Mechanical Engineer
San Jose, California, United States
$75k-$85k/yr OnsiteFull Time
Salas O'Brien
Salas O'Brien: Provides integrated engineering design and technical consulting services.
Bachelor's or master's degree in mechanical engineering; mechanical engineering principles, analytical and problem-solving skills, communication, and teamwork. AutoCAD and Revit preferred; HVAC knowledge and internship experience are advantageous.
AutoCAD, Revit, ASHRAE, IMC, HVAC
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Mechanical Engineer Intern
Brisbane, California, United States
$30-$34/hr OnsiteInternship
Heirloom
Heirloom: Removes carbon dioxide from the atmosphere using limestone minerals.
Pursuing or recently completing a mechanical engineering degree; hands-on building experience, 3D CAD experience, engineering fundamentals, testing methodology, problem-solving, and communication skills required.
CAD, Finite Element Analysis (FEA), Arduino, Raspberry Pi, Microsoft Excel
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Mechanical Engineer Intern
San Francisco, California, United States
OnsiteInternship, Temporary
Foundation Robotics
Foundation Robotics: Building general-purpose humanoid robots for industry and defense.
Pursuing a BS, MS, or PhD in mechanical engineering or a related field, with knowledge of mechanics, mechanism design, CAD, tolerance analysis, GD&T, FEA, actuation, and robotic hands.
SolidWorks, Fusion 360, CATIA, SolidWorks Simulation, ANSYS, CAD, FEA, GD&T
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MECHANICAL Engineer Intern
Sausalito, California, United States
HybridInternship
BlueDesal
BlueDesal: Provides wave-powered desalination technology for autonomous freshwater production.
Mechanical engineering intern with a relevant bachelor's, master's, or PhD, fluid mechanics background, simulation experience, analytical and problem-solving skills, and attention to detail.
Ansys, OpenFOAM, Fusion360, FEA, FSI
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Mechanical Associate Engineer (Winter 2027)
San Francisco, California, United States
$2k/wk OnsiteInternship
Astranis
Astranis: Builds and operates small geostationary communications satellites.
Bachelor's degree in mechanical engineering, aerospace engineering, or an equivalent technical field; hands-on experience designing, building, and testing hardware; hardware development enthusiasm.
CAD
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Internship, GNC Engineering (Fall)
Palo Alto, California, United States
$25/hr OnsiteInternship
Pivotal
Pivotal: Manufactures personal electric vertical takeoff and landing (eVTOL) aircraft.
Pursuing a bachelor's or master's degree in aerospace, mechanical, electrical, robotics, or a related field; experience with MATLAB/Simulink or Python and coursework or projects in flight dynamics, controls, or estimation.
MATLAB/Simulink, Python, Git
3mo
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Intern - Mechanical Engineer
San Francisco or Toronto
HybridInternship
Human Computer Lab
Human Computer Lab: A robotics startup and research lab building expressive, human-centered robots for everyday environments.
Pursuing an engineering degree; experience designing robotics hardware, prototyping with microcontrollers and PCBs, strong CAD (Onshape/SolidWorks/Fusion360) and 3D printing skills, and interest in human-robot interaction.
Onshape, SolidWorks, Fusion360, microcontrollers, PCBs, 3D printing
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Mechanical Design Intern (Winter 2027)
Burlingame, California, United States
$30/hr OnsiteInternship
Peak Energy
Peak Energy: Developing sodium-ion battery systems for utility-scale energy storage.
Pursuing mechanical engineering or equivalent degree; strong mechanical and thermal fundamentals; basic power electronics knowledge; familiarity with 3D CAD; prototyping experience; eligible to work in the U.S.
3D CAD, CATIA V6, Siemens NX, MATLAB, FEA, CFD
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Mechanical Engineer Intern - Mechanism and Structures Design (Fall 2026)
Sunnyvale, California, United States
$5k-$6k/mo OnsiteFull Time, Internship
Strata Robotics
Strata Robotics: Developing autonomous robotic platforms for heavy outdoor construction.
Pursuing BS/MS in Mechanical Engineering, hands-on prototype build/assembly/test experience, NX CAD proficiency, fixture and mechanism design, shop comfort, attention to detail.
NX
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Intern, Mechanical Design - Wiring Harness- Fall 2026
Palo Alto, California, United States
OnsiteInternship, Full Time
Mind Robotics
Mind Robotics: A robotics developing physical AI for industrial applications.
Currently pursuing mechanical, electrical, mechatronics, or related engineering; 3D assembly-level CAD, engineering drawings, GD&T, schematics, hands-on soldering and crimping experience required.
3DEXPERIENCE, CATIA, SolidWorks, Creo, NX, PLM, CAD, GD&T
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Hardware Engineering Intern
Alameda, California, United States
$30-$40/hr OnsiteInternship, Full Time
Epia Neuro
Epia Neuro: A neural technology developing systems and devices to restore function and independence for people with neurological conditions.
Completed or nearly completed bachelor's in mechanical engineering; SolidWorks, FDM/SLA printing, precision assembly, documentation, testing, and strong written communication skills required.
SolidWorks, FDM, SLA, 3D printers, slicing software
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Engineering Directorate Support Intern
Mountain View, California, United States
$18-$40/hr OnsiteInternship
Astrion
Astrion: Provides engineering, cybersecurity, and mission support services.
Enrolled in BS/MS/PhD engineering program, strong analytical and technical aptitude for mechanical/electrical/systems engineering, teamwork and communication skills; US citizenship required for clearance-eligible roles.
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Robotics Hardware & Supplier Engineering Intern (2026 Fall)
Fremont, California, United States
$25-$35/hr OnsiteInternship
Anyware Robotics
Anyware Robotics: Develops autonomous mobile robots for warehouse and logistics automation.
Pursuing or recent Bachelor's in Mechanical Engineering/Mechatronics, SolidWorks experience, fluent Mandarin for supplier communication, hands-on hardware and supplier engineering interest.
SolidWorks
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WED - 2027 New Grad Mechanical & Fire Protection Engineer I (For Current & Recent HNTB Interns Only)
Oakland, California, United States
$83k-$125k/yr OnsiteFull Time
HNTB
HNTB: Infrastructure design and engineering for transportation and public works
Bachelor's degree in engineering and current or recent HNTB internship experience. Supports engineering design, calculations, reports, plans, specifications, research, and field investigations.