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34 intern project engineer jobs at 29 companies in Fairfield, CA

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PROJECT ENGINEER INTERN
Sacramento, California, United States
OnsiteInternship, Full Time
Deacon Construction
Deacon Construction: Provider of commercial construction and general contracting services.
Pursuing Bachelor's in Architectural, Engineering, or Construction Management; basic MS Office; familiarity with Prolog and MS Project; strong communication and teamwork.
MS Word, MS Excel, MS Outlook, Prolog, MS Project
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1w
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Intern - Project Engineer
Union City, California, United States
$26/hr OnsiteInternship, Contract
Southland Industries
Southland Industries: National expert in mechanical, electrical, and plumbing building systems.
Pursuing a relevant engineering or construction degree; strong communication, problem-solving, and teamwork; interest in HVAC/plumbing/fire protection design, estimating, and scheduling.
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2mo
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Project Engineer Intern - Summer 2027
Sacramento or Oakland or Commerce or San Diego or Goodyear or Manassas
$21-$28/hr OnsiteFull Time
Helix Electric
Helix Electric: Provides electrical contracting and design-build services for complex projects.
Enrolled in a bachelor’s degree program; construction or engineering focus; internship or related experience preferred; strong communication, math, and organizational skills.
BIM, Accubid, Excel, AutoCAD, Microsoft Office
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Electrical Project Engineer Intern (Fall 2026)
South San Francisco, California, United States
$44/hr OnsiteFull Time, Internship
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Must have completed second year of undergraduate studies (relevant coursework in circuits, power systems, construction); familiarity with CAD/ECAD and tools (Revit, Bluebeam Revu, AutoCAD, NX); strong analytical, communication, and hands-on skills; willingness to travel for site visits.
CAD, ECAD, Revit, Bluebeam Revu, AutoCAD, NX
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3w
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Security Engineer Intern
San Mateo, California, United States
$30-$50/hr HybridInternship
Notable
Notable: Automates administrative and clinical workflows for healthcare providers using AI.
Coursework or projects in security engineering/cloud/DevSecOps; ability to read code and automate with at least one language (Python, Go); familiarity with cloud security, IAM, CI/CD security, containers/Kubernetes; strong communication.
Python, Go, Terraform, OPA, Conftest, GitHub Actions, GitLab, SIEM, CI/CD, OWASP Top 10
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2w
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Technical Project Management Intern (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Astranis
Astranis: Builds and operates small geostationary communications satellites.
B.S. in aerospace engineering or equivalent; strong communication and organizational skills; ability to coordinate across teams, manage risks, and prioritize multiple tasks in a fast-paced environment.
Smartsheet, Jira, Confluence, Microsoft Excel, Google Sheets
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Software Engineer Intern
San Francisco, California, United States
OnsiteInternship
Kos
Kos: AI-powered automated financial operations for industrial infrastructure.
CS/ML student; hands-on project or internship; proficient in Python, TypeScript, or Go; experience with LLMs/agents; production-ready coder; able to work in SF onsite.
Python, TypeScript, Go, LLMs, agents, ERP integration
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Engineering Intern
South San Francisco, California, United States
OnsiteTemporary, Internship
Western Magnetics
Western Magnetics: Manufacturer of electric motors for drones and robots.
Currently enrolled in an engineering undergraduate or graduate program; interest in robotics/drone technology; internship or project experience; basic CAD, PCB layout, embedded programming, and data analysis skills; authorized to work in the U.S.
CAD, PCB layout tools, embedded programming, data analysis, simulation
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2mo
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Project Manager
Pleasanton, California, United States
$140k-$170k/yr OnsiteFull Time
Omron
OmronTokyo Stock Exchange: 6645: Manufactures industrial automation components and medical healthcare devices.
5+ YOEBS in Mechanical, Electrical, or Software Engineering; 5+ years managing industrial product development; knowledge of electro-mechanical systems and software; experience with Waterfall and Agile; strong leadership and communication; proficient with Office365, MS Teams/SharePoint, Jira/Confluence, MS Project, Smartsheet; occasional international tra...
Office365, MS Teams/SharePoint, Jira, Confluence, MS Project, Smartsheet
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Full-stack Intern
San Francisco, California, United States
$10k/mo OnsiteFull Time
Composio
Composio: Infrastructure and toolkits for building functional AI agents.
Full-stack product engineering experience, built full-stack projects from scratch, familiarity with language-model projects, strong product craft and documentation skills.
Github, Gmail, Notion, Salesforce, Typescript, React, Tailwind, Next.js
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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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Fall 2026 PhD Intern - Hardware Development Engineering
Fremont, California, United States
$42-$56/hr OnsiteInternship
Western Digital
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
Currently pursuing or recently completed PhD in engineering or core science; strong critical thinking, problem solving, and communication skills; ability to support photo process development, mask management, and execution of engineering projects.
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1w
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Software Engineer, Intern
San Francisco, California, United States
OnsiteInternship, Full Time
Pylon
Pylon: AI-native customer support platform for B2B companies.
Pursuing a BS/MS in computer science or related field, graduating Dec 2026–Summer 2027; willing to relocate to San Francisco; strong full‑stack fundamentals; internship or side projects preferred.
React, Golang, GraphQL, AWS
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4d
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Construction Management Intern
San Francisco, California, United States
$20-$25/hr OnsiteTemporary
APTIM
APTIM: Provides environmental, resilience, and infrastructure engineering solutions.
Enrolled in an accredited construction, engineering, safety, or related program; proficient in Microsoft Office; basic construction knowledge; strong communication and organizational skills; able to work outdoors and locally or relocate without support.
Procore, Primavera P6, AutoCAD, Bluebeam, Revit/BIM 360, PlanGrid, Raken, ArcGIS, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft Outlook
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2w
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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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2026 University Hire (U.S.) - Construction Field Engineer, Civil (Port Arthur, TX, US, 77641)
Port Arthur or New York City or San Francisco
$77k-$92k/yr OnsiteFull Time
Bechtel
Bechtel: Designs and constructs large-scale industrial and infrastructure projects.
0+ YOEBachelor of Science in Civil Engineering (within ±12 months), willing to relocate/travel to domestic/international project jobsites, eligible to work in the US without visa sponsorship, able to pass drug screen and background check.
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Backend Engineering Intern
San Francisco or Istanbul or Ankara
HybridFull Time, Internship
PlusMinusOne
PlusMinusOne: Develops and markets a portfolio of utility and lifestyle apps
0+ YOE3rd/4th-year CS or engineering student with backend interest; hands-on backend experience via coursework/projects/internships; OOP, data structures, algorithms, and Git familiarity; strong analytical and communication skills.
Git
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4d
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Software Engineer (Agent Platform) - Intern - 2026-2027
San Francisco, California, United States
OnsiteInternship
Netic
Netic: AI platform automating customer outreach and bookings for service businesses.
Internship-level role requiring familiarity with Python and TypeScript, CS fundamentals in distributed systems, exposure to LLM APIs/agent frameworks, and track record of shipping end-to-end projects.
Python, asyncio, FastAPI, TypeScript, Node, React, LLM APIs, LangChain, MCP, RAG, eval frameworks
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4d
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Senior Software Engineer - Frontend Developer Experience
San Francisco or New York City or Portland or Canada or United States
$201k-$251k/yr HybridFull Time
Mercury
Mercury: Banking services and financial software designed for startup companies.
6+ YOE6+ years frontend software experience with deep React and TypeScript knowledge; experience leading cross-team engineering projects and maintaining internal libraries; strong communication and observability skills.
React, TypeScript, Vite, CI/CD
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3w
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Staff Security Engineer, Enterprise Security Engineering
Mountain View or San Francisco or Seattle or Pittsburgh or Dallas or Detroit or Phoenix
$171k-$273k/yr HybridFull Time
Aurora
AuroraNASDAQ: AUR: Developing autonomous driving technology for trucking and passenger mobility.
12+ YOE12+ years enterprise security engineering experience securing endpoints, identities, and internal infrastructure; proficiency in Go or Python; experience with enterprise security platforms, telemetry/SIEM, architecture reviews, and cross-functional project leadership.
Go, Python, EDR/XDR, MDM, IAM/IGA, DLP, PKI, SIEM, SCPs, GuardDuty, Security Hub, IAM, AWS, MITRE ATT&CK, NIST CSF, CIS Benchmarks
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