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213 development intern jobs at 148 companies in Fairfield, CA

2w
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Business Development Intern
New York City or Georgia or California or San Francisco or Turkey or Los Angeles or Dallas or Miami
RemoteFull Time, Internship
Immigrant Invest
Immigrant Invest: A provider of migration and investor services focused on partnership-driven business development.
Final-year student or recent graduate in business-related field; internship or part-time sales/partnerships experience helpful; CRM familiarity; professional English (C1); proactive and analytical.
Salesforce, HubSpot, Pipedrive, CRM
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5d
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Development Strategic Operations Intern
United States or New York City or Boston or Washington or Boulder or San Francisco
$18/hr RemoteFull Time
Environmental Defense Fund
Environmental Defense Fund: Finds science-based solutions for urgent global environmental problems.
Enrolled in or recent graduate of an undergraduate program; basic Microsoft Office skills; confidentiality with sensitive data; Salesforce experience a plus; strong communication, organization, and attention to detail.
Microsoft Office, Salesforce
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2w
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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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2w
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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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1mo
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Senior Business Development Manager - TMT
San Francisco or California or United States
$200k-$250k/yr OnsiteFull Time
Freshfields
Freshfields: Providing international legal services to global corporations and governments.
Deep US TMT market knowledge with AI expertise; strong business development, client strategy, communications and project leadership skills; ability to coach teams and work with senior partners across US and international colleagues.
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2mo
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SWE Intern
San Francisco, California, United States
OnsiteInternship
Chasi
Chasi: AI revenue engine for construction equipment dealers.
1+ YOE1+ internships in production software; full-stack TS/React with backend; experience with LLMs; real-time systems; strong architectural judgment; customer-facing; ownership.
Next.js, TypeScript, PostgreSQL, Redis, Twilio, LiveKit, OpenAI, Anthropic, Deepgram, Vector Databases
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3w
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Intern, Bioprocess
Davis, California, United States
$18-$20/hr OnsitePart Time, Internship
Pro Farm Group
Pro Farm Group: Develops biological crop protection and plant health solutions for agriculture.
College student (biology, biotechnology, chemical engineering or related) with ability to perform lab housekeeping, prepare media, maintain inventory, perform measurements, and work flexible hours.
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2mo
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Web Developer Intern
Rancho Cordova, California, United States
$23-$27/hr OnsiteMultiple Commitments Available
GEI Consultants
GEI Consultants: Provides multi-disciplinary engineering and environmental consulting services.
HTML, JavaScript, CSS, AJAX; Java/JSP/ASP.NET/XML/JSON; databases Oracle/Access/SQL Server; timely, high-quality deliverables; self-motivated; computer science/engineering major; able to work at Sacramento office.
HTML, JavaScript, CSS, AJAX, Java, JSP, ASP.NET, XML, JSON, Oracle, SQL Server, Access
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2mo
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Web Developer Intern
Rancho Cordova, California, United States
$23-$27/hr OnsiteInternship
GEI Consultants
GEI Consultants: Professional engineering and environmental consulting services.
0+ YOEProficient in HTML, JavaScript, CSS, and AJAX; knowledge of Java, JSP, ASP.NET, XML, JSON; experience with databases (Oracle, Access, SQL Server); reliable, self-motivated, detail-oriented; able to work on site in Sacramento area.
HTML, JavaScript, CSS, AJAX, Java, JSP, ASP.NET, XML, JSON, Oracle, Access, SQL Server
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2mo
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Project Development Associate
Los Angeles or San Francisco
$225k-$435k/yr OnsiteFull Time
Latham & Watkins
Latham & Watkins: Global law firm providing legal counsel to businesses.
Mid-level or senior associate with experience representing US and/or international energy and infrastructure clients on project development transactions.
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2w
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Application Development Manager
San Francisco, California, United States
HybridFull Time
Envalior
Envalior: Manufactures high-performance engineering materials and sustainable plastics globally.
3+ YOEFamiliarity with polymers and processing, 3–5 years experience preferred, BSc in Polymers/Plastics or equivalent processing know-how, some international travel, English proficiency required.
CRM
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2mo
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Business Development Manager - Electronics
Remote or Los Angeles or San Francisco or Denver or Atlanta or Chicago or Detroit or Madison Heights or New York or Dallas
$120k-$145k/yr RemoteFull Time
Henkel
HenkelXETRA: HEN3: Manufactures laundry, beauty, and adhesive products globally.
5+ YOEBachelor’s degree required; MBA preferred. 5+ years in electronics/electrification industry with applications and market trends experience. Strong networking, negotiation, and project leadership skills. Ability to travel up to 30% (including international).
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1mo
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Software Engineer Intern (Fall 2026)
South San Francisco, California, United States
$54/hr OnsiteFull Time, Internship
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Must have completed second year of undergraduate studies (masters/PhD also eligible); strong CS fundamentals, passion for software development and product-focused engineering.
React Native, Python, Go
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1w
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Strategic Partner Development Manager, International Pixel Product Partnerships
Mountain View or San Francisco
$140k-$204k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
7+ YOEBachelor's or equivalent; 7+ years business development/partnerships/consulting/banking (5 with advanced degree); experience with C-level engagement, managing agreements, Japan market; fluency in Japanese and English; international travel ~25%.
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2mo
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Applied AI Intern
San Francisco, California, United States
$1k-$2k/wk OnsiteInternship
Eragon
Eragon: A technology delivering software solutions with a focus on AI and machine learning.
Pursuing BS/MS in computer science or engineering; proficient in Python; familiar with ML frameworks (PyTorch, TensorFlow); strong ML fundamentals; good problem solving; curious and takes ownership.
Python, PyTorch, TensorFlow
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2mo
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Software Engineer Intern
San Francisco, California, United States
OnsiteFull Time
Phonely
Phonely: AI-powered voice platform for automated customer phone interactions.
Pursuing or recently completed degree in Computer Science or related field; experience with JavaScript/TypeScript and modern frontend frameworks; familiarity with Next.js; strong problem-solving and debugging skills; ability to work with customers and teammates; eager to learn quickly.
JavaScript, TypeScript, React, Next.js, Python, AWS, GCP, Kubernetes, Redis, Datadog
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2mo
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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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2mo
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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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3d
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ML Research Intern
New York or San Francisco
$15k/mo OnsiteInternship
Modal
Modal: Serverless cloud platform for running AI and data workloads
PhD candidate in CS/ML or related with research in reinforcement learning, ML, or foundation models; experience with large-scale model training, distributed training or multi-GPU environments; strong programming and research publication record.
Seaborn, Luigi
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5d
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Graduate Analyst Intern
Alameda, California, United States
$30/hr OnsiteInternship
First 5 Alameda County
First 5 Alameda County: Administering early childhood development programs and family support services.
Graduate student or recent graduate in public policy/public health, strong research and analytical skills, experience with spreadsheets/databases and data visualization, GIS a plus, excellent written and verbal communication.
GIS
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