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Full Stack Internship Jobs in California (NOW HIRING)

NimbleRx

Senior Fullstack Engineer

Redwood City, CA · On-site

... full-stack features, from design to implementation and test to release • Mentor junior engineers and interns • Promote best practices and high-quality development techniques • Tackle tough ...

VSolvit

JUNIOR FULL STACK DEVELOPER

Norco, CA · On-site

$25 - $41/hr

Job Summary We are seeking a motivated and detail-oriented Junior Full Stack Developer to join our ... internship/project experience). * 1-2 years of academic, internship, or professional experience ...

Prime Intellect

Internship

San Francisco, CA · On-site

... full-stack system for post-training at frontier scale - from SFT and RL to tool use, agent ... We're looking for exceptional interns who've already built real systems, contributed to open-source ...

Clerkie

Software Engineer Internship

San Francisco, CA · On-site +1

$80/hr

You'll work across the full stack, collaborating with engineers on frontend, backend, and ... This isn't just another internship - it's an investment in your growth. The ideal Clerkie team ...

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Full Stack Internship information

What types of projects and technologies can I expect to work with during a full stack internship?

As a Full Stack Intern, you'll typically be involved in both front-end and back-end development tasks, often contributing to real-world projects such as website features, web applications, or internal tools. You can expect to work with modern frameworks like React or Angular for the front end and Node.js, Python, or Java for the back end, along with databases like MongoDB or PostgreSQL. Interns often collaborate closely with senior developers and participate in code reviews, agile sprints, and team meetings, gaining practical experience across the software development lifecycle. This hands-on exposure is designed to develop your technical skills and prepare you for a future full-time role.

What are the key skills and qualifications needed to thrive as a full stack intern, and why are they important?

To thrive as a Full Stack Intern, you need foundational knowledge of front-end and back-end development, proficiency in programming languages like JavaScript, HTML/CSS, and at least one backend language, often demonstrated through coursework or projects. Familiarity with frameworks like React or Angular, databases such as MySQL or MongoDB, and version control systems like Git is typically expected. Strong problem-solving skills, eagerness to learn, and effective communication help interns excel in team-based, fast-paced environments. These skills and qualities are crucial for adapting to diverse tasks and contributing meaningfully to complex software projects.

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Infographic showing various Full Stack Internship job openings in California as of August 2026, with employment types broken down into 10% Internship, 65% Full Time, 21% Part Time, 2% Temporary, and 2% Contract. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution.

Full Stack Software Engineer, OpenAI Edu

OpenAI

San Francisco, CA • On-site

$230K - $385K/yr

Full-time

Re-posted 29 days ago

Job description

About the team
OpenAI's Education team is building products and experiences that help learners, educators, and institutions benefit from AI in ways that are rigorous, useful, and grounded in real learning outcomes.
The work spans both consumer and B2B education, with close collaboration across engineering, learning science, design, data, and research. This team sits in a highly strategic investment area for OpenAI, with strong opportunities to shape how product ideas flow across consumer and institution-facing experiences.
Some of our recent work:
  • New tools for understanding AI and learning outcomes
  • Education for countries
  • Advancements in higher education
  • Early product work - Introducing Study Mode

About the role
We're looking for a product-minded Full Stack Engineer to help build OpenAI's education products from the ground up. You'll own end-to-end development across the stack, from early concepting and prototyping through production launch and iteration.
This is an opportunity to work on a highly strategic, early-stage product area where engineering judgment, product sense, and customer empathy all matter.
You'll partner closely with leaders across the education org, including learning scientists, researchers, designers, and cross-functional partners, to turn emerging ideas into durable product experiences for schools, universities, and other education stakeholders.
In this role, you will:
  • Build and ship product experiences across the full stack for OpenAI's education offerings
  • Own projects end-to-end, from ideation and technical design through implementation, launch, and iteration
  • Work closely with learning scientists and researchers to translate learning goals and evidence into product decisions
  • Collaborate with design, data, and cross-functional partners to build thoughtful, high-quality user experiences
  • Help define the engineering foundation for a growing education pod, including patterns, systems, and technical direction
  • Contribute to products that may inform both consumer and B2B education experiences over time

Your background might look something like:
  • 5+ years of professional engineering experience (excluding internships) in relevant roles at tech and product-driven companies
  • Former founder, or early engineer at a startup who has built a product from scratch is a plus
  • Proficiency with TypeScript, React, and other web technologies
  • Proficiency in one or more backend languages (e.g., Python, Go, Rust, Typescript or similar) and distributed systems concepts
  • Some experience with relational databases like Postgres/MySQL
  • Care deeply about reliability, safety, and performance in production environments.
  • Interest in AI/ML (direct experience not required)
  • Proven ability to thrive in fast-growing, product-driven companies by effectively navigating loosely defined tasks and managing competing priorities or deadlines.
  • Have experience building interactive educational tools or learning products, or are excited to apply your skills in this space
  • Have a strong interest in improving access to education and expanding opportunities for learners worldwide

About OpenAI
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.
We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.
For additional information, please see OpenAI's Affirmative Action and Equal Employment Opportunity Policy Statement.
Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.
To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link.
OpenAI Global Applicant Privacy Policy
At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

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