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90 2026 intern jobs at 37 companies in Santa Rosa, CA

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Secondaries & Primaries Intern – September 2026 I SF
San Francisco, California, United States
OnsiteFull Time, Internship
Ardian
Ardian: Investing across private markets to deliver long-term performance globally.
May 2026 graduate or undergraduate student available full time through December; requires English fluency, corporate finance knowledge, Excel modeling, analytical, writing, organization, and motivation.
Microsoft Excel
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1mo
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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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2mo
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Research Intern (Fall 2026)
San Francisco, California, United States
OnsiteFull Time, Internship
Phonic
Phonic: Building a platform for lifelike, reliable voice AI agents.
Proven original research work; proficiency in PyTorch or JAX; strong math, probability, optimization, and linear algebra skills; ability to design experiments and implement models from papers; strong written and verbal communication.
PyTorch, JAX
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1mo
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Administrative Intern (December 2026)
San Francisco, California, United States
$18-$20/hr HybridInternship
TransPerfect
TransPerfect: Provides global language services and localization technology solutions.
Office experience, calendar management, Excel reporting, strong written/spoken English, analytical skills, multitasking and client relationship abilities.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft Teams
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2mo
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Growth Intern (Summer 2026)
San Francisco, California, United States
$28-$50/hr OnsiteFull Time, Internship
SellScale
SellScale: AI-powered sales automation software for outbound lead generation.
Prior product marketing/content creation/video editing experience in a startup; able to work in San Francisco office 3–5 days/week; interest in agentic AI; familiarity with Notion, Excalidraw, Zapier, and HubSpot.
Notion, Excalidraw, Zapier, HubSpot
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2mo
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CTE Intern
Santa Rosa, California, United States
$21/hr OnsiteInternship
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
2026 high school graduates for a one-year manufacturing internship; willingness to learn, positive attitude, attention to detail, teamwork, and shift flexibility. May perform materials handling, assembly, testing, quality inspection, and ERP data entry.
ERP, Shop Floor Control Production/Test tracking system
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2026-2027 Health, Safety and Environment Intern (Returning Intern)
Richmond or Pasadena or Bakersfield or Belle Chasse or Pascagoula or Midland or Covington or Geismar or El Segundo or Houston or Ames or Greeley or San Ramon or Salt Lake City or Denver
$24-$38/hr OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
0+ YOEPursuing a bachelor’s, master’s, or PhD in relevant environmental, safety, or engineering fields; ≤2 years experience; willing to work domestic and international locations; strong regulatory and analytical interest.
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2mo
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CTE Intern
Santa Rosa, California, United States
$21/hr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNew York Stock Exchange: KEYS: Manufactures hardware and software for electronic test and measurement.
Must be a 2026 high school graduate; willingness to learn, attention to detail, teamwork, job/shift flexibility, and positive attitude.
Enterprise Resource Planning (ERP), Shop Floor Control Production/Test tracking system
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Investment Banking Intern (Fall 2026)
San Francisco, California, United States
OnsiteFull Time
ComCap
ComCap: Boutique investment bank advising the digital commerce and technology sectors.
Junior or senior undergraduate with 3.5+ GPA, US work authorization, financial modeling and Excel skills, PowerPoint, strong writing and communication, research and valuation ability.
Microsoft Excel, PowerPoint
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3mo
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Reliability Test Intern (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Astranis
Astranis: Builds and operates small geostationary communications satellites.
Pursuing a degree in Mechanical, Electrical, or Aerospace Engineering; onsite 5 days/week; strong interest in hardware reliability; good communication; ability to multitask.
Python, MATLAB, Data Acquisition (DAQ), Thermal Chamber, Vibration Table
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2w
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RF Hardware Intern (Fall 2026)
San Francisco, California, United States
$40-$60/hr OnsiteInternship
Tacit
Tacit: Developing advanced hardware to rethink human-computer interaction.
Enrolled MS or PhD in EE/RF-related field, available for a fall-start onsite internship in San Francisco; experience with RF circuits, lab instruments, embedded C/C++, Python, and PCB/Altium is preferred.
Python, C/C++, Altium Designer, ADS, HFSS, CST, VNA, spectrum analyzer, signal generator, oscilloscope, power meter, SDR, SPI, I2C, UART
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GTM Engineering Intern (Fall 2026)
San Francisco, California, United States
OnsiteInternship
Haladir
Haladir: Decisional AI layer for logistics and supply chain optimization.
B2B software sales experience across the full cycle, technical competency with APIs, data, AI tools, and automation, willingness to relocate and travel frequently, and US work authorization.
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Intern - Electrical Engineer - Fall 2026
Fort Collins or Minnesota or Massachusetts or California or Denver or Loveland or Boulder or St. Paul or Boston or San Jose or Palo Alto or Berkeley
$26-$36/hr OnsiteInternship
Advanced Energy
Advanced EnergyNasdaq: AEIS: Provides precision power conversion and control technology solutions.
Post-graduate Electrical or Computer Engineering student with GPA above 3.25, lab debugging experience, Windows and MS Office proficiency, and ability to use electrical test and design tools.
oscilloscopes, power meters, multimeters, logic analyzers, firmware interface tools, Windows, Microsoft Office Suite, CAD, UART, SPI, I2C
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2mo
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Research Intern, Model Shaping (Fall 2026)
San Francisco or Amsterdam
$58-$63/hr OnsiteInternship
Together AI
Together AI: Cloud platform for training and deploying artificial intelligence models.
Currently pursuing a BS/MS/PhD in CS, EE or related; strong ML/DL fundamentals; experience with PyTorch or JAX; familiarity with Transformer models; research experience and publications preferred.
PyTorch, JAX, Transformer, FlashAttention, Mamba, FlexGen, SWARM Parallelism, RedPajama
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3mo
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Software Engineer Intern (Fall / Winter 2026)
San Francisco or Canada
RemoteInternship
Cohere
Cohere: Provides enterprise-grade large language models and AI software platforms.
Enrolled in a post-secondary program; available for a full-time 3-6 month internship; remote; roles across frontend, backend, full-stack, and infrastructure.
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1mo
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Customer Advocacy Intern
San Francisco or United States
$25-$30/hr RemoteInternship
Cribl
Cribl: Develops software for observability and telemetry data management.
BA/BS (graduated 2026), strong writing and organizational skills, comfort with spreadsheets and systems, interest in AI workflows and customer storytelling.
Salesforce
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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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1mo
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Social Work Intern @ Districtwide 2026-27 SY #4041
Concord, California, United States
$4k/yr OnsitePart Time
Mt. Diablo Unified School District
Mt. Diablo Unified School District: Provides public K-12 and adult education services.
0+ YOEEnrollment in a Master's of Social Work program, valid California driver's license, TB and fingerprint clearance, ability to provide individual/group counseling, coordinate services, document interventions; stipend up to $4,000.
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2mo
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Intern/Co-op - Refining Chemical Engineering Fall 2026
Findlay or El Paso or Anacortes or Wilmington or Martinez or Owensboro or Canton or Canonsburg or Mandan or Salt Lake City or Dickinson or Robinson or Detroit or St Paul Park or Catlettsburg or Garyville or Texas City or Kenai or San Antonio
$33-$42/hr OnsitePart Time, Internship
Marathon Petroleum
Marathon PetroleumNYSE: MPC: Refines and markets petroleum products and renewable fuels.
Must be majoring in Chemical Engineering, strong academic performance, concurrently enrolled in a degree program, valid driver's license, authorized to work in the US indefinitely, availability for multiple co-op/term assignments preferred.
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1mo
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Governance, Risk, and Compliance Intern (Fall 2026)
San Francisco, California, United States
$50-$54/hr HybridInternship
Notion
Notion: Provides a unified workspace for notes, documents, and project management.
Pursuing a Bachelors or Masters in CS/IT/MIS/Cybersecurity, internship experience, Python and REST API proficiency, familiarity with AI agents, strong communication and cross-team collaboration skills.
Python, Rest API, SOAR, Tines
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