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129 engineering internship jobs at 87 companies in Vacaville, CA

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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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2mo
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Internship: General Application
San Francisco, California, United States
$25-$50/hr OnsiteInternship
Elve
Elve: Manufactures high-efficiency power amplifiers for high-speed wireless networks.
Enrolled or recent graduate in BS/MS/PhD/MBA; technical expertise in engineering, product, or business areas; hands-on, collaborative, analytical; available for 12+ weeks.
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2mo
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Internship: Heavy Civil Field Engineering
Alameda, California, United States
$25/hr OnsiteAll Commitments Available
Stacy Witbeck
Stacy Witbeck: Full-service contractor specializing in heavy civil and transit infrastructure.
Pursuing civil engineering/construction mgmt degree; CAD experience; ability to read/interpret documents; strong communication.
CAD
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Intern - Engineering
Richmond, California, United States
$21-$35/hr OnsiteInternship
Parker Hannifin
Parker HannifinNYSE: PH: Manufacturer of motion and control technologies and systems.
Enrolled in a Bachelor's or advanced Mechanical Engineering program; experience with Autodesk Inventor or Solidworks; strong communication, time management, and teamwork skills.
Autodesk Inventor, Solidworks
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2mo
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DoW SkillBridge Internship (San Ramon, CA, US)
San Ramon, California, United States
HybridInternship
Mott MacDonald
Mott MacDonald: Global engineering and management consultancy for infrastructure and development.
Bachelor’s degree in engineering or related fields; pursuing degree acceptable; interns with experience in engineering design, project management, construction or related fields preferred.
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2026-2027 Facilities Engineering Chemical Engineering Intern
Houston or Bakersfield or Belle Chasse or Midland or Geismar or El Segundo or Pasadena or Pascagoula or Covington or Salt Lake City or Richmond or Ames or Greeley
$28/hr OnsiteInternship, Full Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
Pursuing bachelor's or master's in chemical engineering; strong academics, communication, teamwork, problem-solving; ability to demonstrate Chevron Way.
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2026 Fall Engineering Intern
San Francisco, California, United States
OnsiteMultiple Commitments Available
Estes Energy
Estes Energy: Develops zero-emission battery systems for commercial vehicle electrification.
Pursuing an engineering degree or equivalent hands-on experience; able to design, build, and test components or subsystems; run experiments, analyze data, document results, and take ownership of a project.
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Metallurgical Engineering Intern
Alameda, California, United States
$35-$45/hr OnsiteInternship
Solcoa
Solcoa: Produces carbon-zero rare earth metals by recycling industrial magnets.
Enrolled in BS/MS in metallurgical engineering, materials science, or related field; hands-on lab/furnace experience; exposure to high-temperature processing; strong documentation and safety focus; on-site availability.
ICP-OES, SEM-EDS, LECO O/N, Python, MATLAB, FactSage, HSC
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Civil Engineering Intern
Concord, California, United States
$25-$34/hr OnsiteInternship, Temporary
APTIM
APTIM: Provides environmental, resilience, and infrastructure engineering solutions.
Undergraduate civil/engineering student (≥60 credit hours, ≥3.0 GPA) available May 18–Aug 7, 2026. Must be 18+, US citizen for some sites, able to complete 40-hour HAZWOPER, perform field lifting, and work in office/field settings.
AutoCAD Civil 3D
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Electrical Engineering Leader - Building Design
Folsom or Walnut Creek
$156k-$224k/yr OnsiteMultiple Commitments Available
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
10+ YOELead electrical engineering design, supervise staff, mentor, and manage projects; requires Bachelor's in engineering, 10+ years experience, California PE preferred, strong leadership and communication.
Microsoft Office, SKM Electrical System Modeling Software, Lighting Modeling Software
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Mechanical Engineering Intern (Summer 2026)
San Francisco, California, United States
OnsiteInternship, Full Time
Blackstar Computers
Blackstar Computers: Building AI-native personal computing hardware and software systems.
Pursuing a mechanical engineering (or related) degree, proficiency with 3D CAD, understanding of tolerancing and manufacturing, available full-time in-person in San Francisco for ≥10 weeks.
3D CAD
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Electrical Engineering Intern – Flywheel Energy Storage Systems
Sacramento, California, United States
OnsiteInternship, Temporary
Qnetic
Qnetic: Manufacturer of grid-scale mechanical flywheel energy storage systems.
Currently enrolled in a Bachelor's in Electrical Engineering or related field; interest in power/energy systems; organized and reliable; comfortable with Microsoft Office; willingness to learn engineering tasks and documentation.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, MATLAB, Python
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Brown and Caldwell Internship (Design, Engineering, Marketing)
Walnut Creek, California, United States
$18-$30/hr OnsiteFull Time
Brown and Caldwell
Brown and Caldwell: Provides environmental engineering services for water and infrastructure systems.
Currently enrolled undergraduate or graduate student with minimum 3.0 GPA; no prior experience required; strong communication, organization, teamwork, and Microsoft Office skills.
Microsoft Office, Adobe Creative Suite, Canva
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Engineering Intern
San Francisco, California, United States
$40-$50/hr OnsitePart Time, Internship
Fluency
Fluency: Automates enterprise process mapping and documentation with artificial intelligence.
Currently pursuing or recently completed a CS/Engineering degree (or equivalent experience). Solid programming fundamentals, familiarity with Python or TypeScript, strong communication, and ability to work on-site in San Francisco at least 3 days/week for 13 weeks.
Python, TypeScript, React, LLM APIs, RAG, agents
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Site/Civil Engineering Intern in Oakland, California, United States
Oakland, California, United States
OnsiteInternship
Tetra Tech
Tetra TechNASDAQ: TTEK: Provides global consulting and engineering services for water and environment.
Currently pursuing a Bachelor’s in Civil Engineering; exposure to AutoCAD/Civil 3D; understanding of grading, drainage, stormwater, and utilities; strong analytical and communication skills; interest in EIT encouraged.
AutoCAD Civil 3D, AutoCAD
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1mo
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Fall '26 Intern - Electrical Engineering
San Francisco, California, United States
OnsiteMultiple Commitments Available
Moss
Moss: Builds robots to scan trees for automated farm inventory.
Hands-on PCB and power-system design experience, firmware proficiency in C/C++, high-speed and mixed-signal design knowledge, sensor and autonomy hardware integration (LiDAR, cameras, GPS, IMUs), manufacturing/DFM experience, and real-world project work beyond coursework.
PCB, LiDARs, cameras, GPS, IMUs, Jetson, USB, Ethernet, MIPI/CSI, CAN, UART, SPI, I2C, C, C++
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Software Engineering Intern – Summer 2027
Fridley or Tempe or Eatontown or Santa Rosa or Lafayette or Boulder or Plymouth or Mounds View or Irvine or North Haven or Memphis or Newton or Dexter or Santa Ana or Mansfield or Fort Worth or Minneapolis or Brooklyn Center or Jacksonville or Boston or Brooklyn Park
$27-$45/hr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
Currently pursuing BS/MS in computer/software engineering or related with anticipated graduation 2027–2029; full-time internship availability June–Aug; U.S. work authorization required; 3.0 GPA preferred; experience with programming/projects preferred.
C, C++, C#/.NET, SQL, JavaScript, Java, Python, Swift, HTML/CSS, Microsoft Visual Studio, Jenkins, GitLab
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2mo
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Last Minute AI-Machine Learning Summer Internship (Gen AI - Multimodal)
Berkeley, California, United States
OnsiteTemporary
Eluvio
Eluvio: Decentralized blockchain platform for high-performance video distribution and monetization
0+ YOEMSc/PhD or advanced undergrad in CS/Engineering/Stats/Math/Physics; strong ML/DL experience; Python/R; CV/NLP knowledge; multi-modal LM experience preferred; good communication and teamwork.
Python, R, TensorFlow, PyTorch, scikit-learn
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Software Engineering Intern
San Francisco, California, United States
OnsiteInternship
SnailWorks
SnailWorks: SnailWorks provides mail tracking and delivery intelligence software for marketers.
Enrolled in Software Engineering/CS program; proficient in TypeScript, Python, or Go; able to read code; curious about data systems and LLM-driven apps; strong written communication; operator mindset.
TypeScript, Python, Go
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2mo
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Rotational Development Program, Engineering, Operations, and Supply Chain
Monroe or Rockwood or Mason City or Monroe or Berlin or Montgomery or Salem or Memphis or New Haven or Las Vegas or Milan or Sacramento or Phoenix
FieldFull Time
ASSA ABLOY
ASSA ABLOYNasdaq Stockholm: ASSA B: Global manufacturer of locks and automated entrance systems.
Bachelor's in engineering, supply chain, or operations (minimum 3.0 GPA) required; internships desirable. Must be willing to relocate for rotations and travel to multiple manufacturing sites. Strong communication and curiosity.
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