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231 intern engineering jobs at 149 companies in Vacaville, CA

4w
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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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2w
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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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3w
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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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1w
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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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1w
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Engineering Intern (Extra Help)
Napa, California, United States
$22-$30/hr FieldTemporary
City of Napa
City of Napa: Provides municipal services and infrastructure for the community.
No prior experience required; must be 18+, possess valid California Class C driver license, able to lift 25 lbs, work outdoors, collect GPS data, read maps, and follow safety guidelines.
ArcGIS, GPS
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1mo
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2026-2027 Facilities Engineering Intern (Previous Intern)
Houston or Ames or Bakersfield or Belle Chasse or Covington or El Segundo or Geismar or Greeley or Midland or Pasadena or Pascagoula or Richmond or Salt Lake City
$28-$8k/mo OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
Bachelor's or Master’s in Chemical Engineering; strong academics; leadership, teamwork, problem-solving; relocation possible.
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2w
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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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2mo
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Summer Engineering Intern
San Francisco, California, United States
$6k-$8k/mo OnsiteInternship
Varick Agents
Varick Agents: A fast-growing startup delivering AI solutions for large enterprises without mentioning the name.
Pursuing CS or related degree; strong programming fundamentals; full-stack capability; focus on code quality and reliable shipping; high initiative.
Python, JavaScript, React, Next.js, AWS, GCP, Azure, Graph databases, OCR, Information extraction, LLM APIs
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2mo
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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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1mo
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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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3w
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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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2mo
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Software Engineering Intern – Distributed Simulation Systems
Emeryville, California, United States
$25-$60/hr HybridFull Time, Internship
Astera Institute
Astera Institute: Conducts fundamental research in artificial intelligence and longevity science.
Strong programming fundamentals; experience with C++, Python, or similar systems languages; familiarity with Linux; understanding of data structures, algorithms, and concurrency; interest in distributed systems and systems engineering.
C++, Python, Linux, MuJoCo, Unity, Unreal, PyTorch, CUDA
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1mo
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Intern
Concord, California, United States
$20-$30/hr OnsiteInternship
Jensen Hughes
Jensen Hughes: Provides fire protection and life safety engineering and consulting.
Pursuing a Bachelor's or Master's in engineering (2+ years completed), strong problem-solving and communication skills, and ability to support engineers on technical assignments.
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1mo
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Software Engineering Intern (San Francisco)
San Francisco, California, United States
OnsiteInternship
Instead
Instead: AI-powered platform for automated tax preparation and strategy.
Pursuing a CS or related degree, familiarity with JavaScript/TypeScript, HTML, CSS, exposure to Go or Python, strong problem solving, and ability to work onsite in San Francisco.
Vue.js, Nuxt, Go, JavaScript, TypeScript, HTML, CSS, Python
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3w
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Software Engineering Intern (Summer 2027)
San Francisco, California, United States
$8k-$12k/mo OnsiteFull Time, Internship
CTGT
CTGT: Deterministic governance platform for enterprise AI systems.
Pursuing a Bachelor's in CS or related; strong programming fundamentals in Python or JavaScript; familiarity with Git and basic cloud workflows (AWS or GCP); ability to work independently and communicate technical ideas clearly.
Python, JavaScript, Git, AWS, GCP, GPT-120B OSS, HaluEval
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1mo
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Software Engineering Intern (Summer 2027)
San Francisco, California, United States
$7k-$10k/mo OnsiteInternship
Circleback
Circleback: AI-powered platform for capturing and managing workplace meeting intelligence.
Experience building end-to-end features (database to UI) for web, desktop, or mobile; prior project or role experience; strong attention to detail, ownership, and curiosity about product.
React, Electron, React Native
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3mo
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Intern - Software/ML Engineering
San Francisco or Toronto
HybridInternship
Human Computer Lab
Human Computer Lab: A research-focused technology lab working on human-robot interaction and intelligent systems.
0+ YOEPursuing degree in CS/EE/CE; strong Python/C++; ML frameworks; robotics/vision/reinforcement learning; experience with simulations; team player.
Python, C++, Machine Learning Frameworks, Simulation Tools
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2mo
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AI Software Engineering Intern
Hillsboro or Folsom
$101k-$137k/yr HybridInternship
Intel
IntelNasdaq: INTC: Designs and manufactures microprocessors and semiconductor components.
0.5+ YOEPart-time internship; pursuing degree; 3+ months in C/C++, Linux, floating-point; GPU/CUDA interest.
C, C++, Linux, CUDA, GPU, Floating-point
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3mo
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Intern, AI Engineering
San Francisco, California, United States
OnsiteInternship
Workato
Workato: Enterprise platform for automating business workflows and integrating applications.
Pursuing MS/PhD in CS, ML, NLP or related; publications in top venues; strong Python and PyTorch; ability to work in SF office; collaborate across teams.
Python, PyTorch, CUDA
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1w
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Intern - Applications Engineering
Roseville, California, United States
$22-$30/hr OnsitePart Time
Microchip Technology
Microchip TechnologyNasdaq: MCHP: Manufacturer of microcontrollers, analog, and mixed-signal integrated circuits.
Currently enrolled in BS/MS in Electrical/Computer/Computer Science Engineering; programming in C/C++/TCL/Tk/Python/Java; board bring-up, debugging, lab setup, OS/drivers installation, and protocol knowledge (NVMe, PCI-Express, SATA, Ethernet, etc.).
C, C++, TCL/Tk, Python, Java, Linux, Windows, NVMe, PCI-Express, SAS, SATA, Fibre Channel, Ethernet, DDR, NAND Flash, UART, SPI
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