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Internship Small Startup Jobs in California (NOW HIRING)

HumanSignal

Marketing Intern

San Francisco, CA · Hybrid

$20 - $25/hr

About the Role You'll join a small marketing team at a fast-moving AI startup where you'll be ... You have some marketing experience: coursework, a prior internship, a student org, or a channel or ...

Mintex Technology

Junior Software Engineer

San Francisco, CA · On-site

$180K - $200K/yr

... internships or full-time) and love for the design → measurement → iteration loop in small-team ... Bonus Signals Experience at a top-tier tech company or startup, or from a competitive engineering ...

SpaceXAI

Software Engineer, Ads Product

Palo Alto, CA

$150K - $350K/yr

Our team is small, highly motivated, and focused on engineering excellence. This organization is ... Prior startup, research, internship, or high-impact project experience. You do not need to know ...

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Internship Small Startup information

What is an internship at a small startup?

An internship at a small startup is a temporary position where students or recent graduates gain hands-on experience by working closely with a small, entrepreneurial company. Unlike larger corporations, small startups often provide interns with opportunities to take on more responsibility, learn directly from founders, and contribute to various aspects of the business. This experience can be highly valuable for developing a broad skill set, networking, and understanding the unique challenges and rewards of startup environments.

What are the key skills and qualifications needed to thrive as an intern at a small startup?

To thrive as an intern at a small startup, you typically need a foundational knowledge in your field of study, strong problem-solving abilities, and a willingness to learn quickly, often supported by current or recent enrollment in a relevant academic program. Familiarity with productivity tools like Google Workspace, project management software like Trello or Asana, and basic data analysis platforms is often advantageous. Strong communication, adaptability, and initiative are crucial soft skills, as startup environments demand flexibility and proactive contributions. These skills and qualities are important because interns at startups often wear many hats and must be able to handle evolving responsibilities in a dynamic, fast-paced setting.

What can I expect in terms of mentorship and learning opportunities during an internship at a small startup?

Interning at a small startup typically offers hands-on experience and close collaboration with founders and core team members. You can expect a less hierarchical structure, which means you'll likely have direct access to senior staff and more opportunities to ask questions, receive feedback, and contribute ideas. Startups often foster a culture of learning by doing, so you'll be given meaningful responsibilities and the chance to see the impact of your work. However, structured mentorship programs may be less formal compared to larger companies, so it's important to be proactive about seeking guidance and support.

What is the difference between Internship Small Startup vs Intern Software Developer?

AspectInternship Small StartupIntern Software Developer
Required CredentialsEnrolled in relevant degree program, basic coding skillsEnrolled in computer science or related field, coding proficiency
Work EnvironmentFast-paced, flexible, small teamCollaborative, project-based, tech-focused
Employer & Industry UsageStartups, tech, innovation sectorsTech companies, software firms, startups
Common Search & ComparisonInternship Small Startup vs Intern Software Developer

Internship Small Startup positions typically involve flexible roles in dynamic environments, often requiring basic technical skills. Intern Software Developer roles are more specialized, focusing on coding and software projects within tech companies. Both are valuable for gaining industry experience, but the scope and expectations differ based on the company's size and focus.

What are the most commonly searched types of Small Startup jobs in California?

The most popular types of Small Startup jobs in California are:

What are popular job titles related to Internship Small Startup jobs in California?

For Internship Small Startup jobs in California, the most frequently searched job titles are:

What job categories do people searching Internship Small Startup jobs in California look for?

The top searched job categories for Internship Small Startup jobs in California are:

What cities in California are hiring for Internship Small Startup jobs?

Cities in California with the most Internship Small Startup job openings:

Internship Small Startup jobs near you
Infographic showing various Internship Small Startup job openings in California as of August 2026, with employment types broken down into 87% Full Time, 11% Part Time, and 2% Contract. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution.

Software Engineer - Product (New Grad)

Julius AI

San Francisco, CA • On-site

$100 - $140/hr

Other

Medical, Dental

Re-posted 29 days ago

Job description

Benefits: Health & dental insurance, gym reimbursement, daily team meals, commuter benefits

We are an early stage applied AI startup building agents that automate knowledge work with code. We’re on a mission to enable one billion humans to become software creators, and we are starting with a focus on data science and analysis use cases.

Today, Julius writes and executes 1 million lines of code every 36 hours, has served over 1 million users and generated over 3 million data visualizations.

We're a small technical team with experience from Uber, Facebook and Scale AI. We're making revenue and we're backed by some of best investors like AI Grant, YCombinator, Bessemer Venture Partners and founders of Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, Dropbox and researchers from OpenAI and Google DeepMind.

Building intuitive and performant user interfaces is critical to making Julius easy to use for over 1 million users. Our interface has several moving parts including tool use, multi-step reasoning, code generation, code execution, file and secrets management, and more. You will get to define and build the experiences for all of these as we scale to our future milestones.

What you’ll do:

  • Build products that bring AI capabilities to millions of people
  • Design and implement intuitive, responsive, and performant user interfaces
  • Optimize application performance and ensure cross-browser compatibility

What we’re looking for:

  • Experience with React, Next.js, Tailwind CSS, Python
  • Have previous internships or relevant experience where you’ve shipped production level code
  • Strong understanding of frontend frontend primitives: component architecture, state management, streaming UIs, and performance profiling
  • Strong understanding of backend systems, in particular - relational databases, caching, background jobs, and auth.
  • Examples of live projects or products you've built
About the interview
  • Intro call
  • Short paid work trial (2-5 days). Own and ship a project in Julius
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