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Java Programming Internship Jobs in San Mateo, CA

PayPal

Software Engineer Intern

San Jose, CA · On-site

$250/hr

Experience with at least one programming language, such as Java, Python, C++, JavaScript, or ... Internship Program Requirements: * This is a Summer 2027 Internship program. Spring and Fall 2027 ...

New

PayPal

Software Engineer Intern

San Jose, CA · On-site

$55/hr

Experience with at least one programming language, such as Java, Python, C++, JavaScript, or ... Internship Program Requirements: * This is a Summer 2027 Internship program. Spring and Fall 2027 ...

PayPal, Inc.

Software Engineer Intern

San Jose, CA · On-site

Experience with at least one programming language, such as Java, Python, C++, JavaScript, or ... Internship Program Requirements: * This is a Summer 2027 Internship program. Spring and Fall 2027 ...

IXL Learning

Software Engineer, Intern

San Mateo, CA · On-site

$29 - $46/hr

... Engineer Interns who have a passion for technology and education. The IXL Engineering team is ... Excellent programming skills in Java or other object-oriented language * Strong analytical ...

Eight Sleep

AI/ML Research Internship

San Francisco, CA · On-site

We're seeking interns who care about outcomes, think in systems, and make data-driven decisions. If ... programming language, such as Python, Swift, Objective C or Java * Experience with ML libraries ...

Eight Sleep

AI/ML Research Internship

San Francisco, CA · On-site

We're seeking interns who care about outcomes, think in systems, and make data-driven decisions. If ... programming language, such as Python, Swift, Objective C or Java * Experience with ML libraries ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa will accept applications for this role until at least 09-09-2026 Visa's Internship Program ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa will accept applications for this role until at least 09-06-2026 Visa's Internship Program ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa will accept applications for this role until at least 09-07-2026 Visa's Internship Program ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa's Internship Program provides an immersive, 12-week journey where you'll work on impactful ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa will accept applications for this role until at least 09-07-2026 Visa's Internship Program ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

Visa

Software Engineer Intern

Foster City, CA · On-site

Visa will accept applications for this role until at least 09-07-2026 Visa's Internship Program ... Proficiency in at least one programming language or technology including, but not limited, to Java ...

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Showing results 21-40

All JobsJava Programming JobsJava Programming Internship JobsJava Programming Internship Jobs in San Mateo, CA

Java Programming Internship information

See San Mateo, CA salary details

$17

$64

$88

How much do java programming internship jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for java programming internship in San Mateo, CA is $64.58, according to ZipRecruiter salary data. Most workers in this role earn between $55.87 and $72.26 per hour, depending on experience, location, and employer.

What is a Java programming internship?

A Java Programming Internship is a temporary position designed for students or recent graduates to gain practical experience in software development using the Java programming language. Interns typically work under the supervision of experienced developers, assisting with coding, debugging, testing, and maintaining Java applications. This internship provides hands-on exposure to real-world projects and development tools, helping interns build their technical skills and understanding of professional software engineering practices. Successful completion of a Java programming internship can enhance a candidate's resume and improve their prospects for future employment in software development roles.

What are the key skills and qualifications needed to thrive as a Java programming intern?

To thrive as a Java Programming Intern, you need a solid understanding of Java fundamentals, object-oriented programming concepts, and basic software development principles, ideally supported by coursework or personal projects. Familiarity with tools like Eclipse or IntelliJ IDEA, version control systems such as Git, and build tools like Maven is typically expected. Strong problem-solving skills, eagerness to learn, and effective teamwork and communication abilities help interns stand out. These skills and qualities are crucial for contributing effectively to projects, adapting to real-world development environments, and growing as a software professional.

What types of projects can I expect to work on during a Java programming internship?

During a Java Programming Internship, you will likely contribute to a variety of projects such as developing web applications, automating business processes, or assisting with testing and debugging existing Java code. Interns often work under the guidance of senior developers, participating in code reviews and collaborating with cross-functional teams like QA and UI/UX. These projects are designed to help you apply classroom knowledge to real-world challenges, build your coding portfolio, and develop teamwork and communication skills essential for a career in software development.

What is the difference between Java Programming Internship vs Java Developer?

AspectJava Programming InternshipJava Developer
Required CredentialsTypically pursuing or recent graduate in Computer Science or related fieldBachelor's degree in Computer Science or related, with experience
Work EnvironmentEntry-level, training-focused, often in tech companies or software firmsFull-time professional role, involved in designing, coding, and maintaining Java applications
Employer & Industry UsageInternships offered by tech companies, startups, and software firmsFull-time employment in similar industries, including finance, tech, and enterprise software

In summary, a Java Programming Internship is an entry-level, training-focused position for students or recent graduates, while a Java Developer is a full-time professional role requiring more experience and responsibility. Internships serve as a stepping stone into a Java development career, providing practical skills and industry exposure.

What does a Java Programming Internship do?

A Java Programming Internship involves assisting in the development, testing, and debugging of Java-based applications under the supervision of experienced developers. Interns typically gain hands-on experience with Java programming, software development tools, and collaborative coding environments. The role helps build foundational skills for a career in software development.

What are popular job titles related to Java Programming Internship jobs in San Mateo, CA?

For Java Programming Internship jobs in San Mateo, CA, the most frequently searched job titles are:

What job categories do people searching Java Programming Internship jobs in San Mateo, CA look for?

The top searched job categories for Java Programming Internship jobs in San Mateo, CA are:

What cities near San Mateo, CA are hiring for Java Programming Internship jobs?

Cities near San Mateo, CA with the most Java Programming Internship job openings:

Java Programming Internship jobs near you
Infographic showing various Java Programming Internship job openings in San Mateo, CA as of August 2026, with employment types broken down into 1% Internship, 78% Full Time, 17% Part Time, 3% Contract, and 1% Nights. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $134,324 per year, or $64.6 per hour.

Software Engineer - Intern (Summer 2027)

Redwood City, CA

C3 AI
Software Development • 501 - 1,000 employees
Learn more about C3 AIexternal

$8.0K - $10K/mo

Full-time, Temporary, Internship

Posted 8 days ago

Job description

C3 AI is searching for brilliant and ambitious Software Engineer Interns to join our Summer 2027 cohort. This isn't your average internship; you'll be on the front lines, designing and developing mission-critical AI applications that help solve some of the world's most complex problems.

As an intern, you'll be embedded directly into our Platform or Forward Deployed Engineering teams, shipping code that matters from day one. You won't just be learning-you'll be contributing, collaborating with world-class engineers, and pushing the boundaries of what's possible with our revolutionary C3 AI Suite.

Responsibilities:

  • Design, develop, and maintain performant and scalable applications.
  • Build and improve tools for internal C3 teams to understand and analyze large-scale data.
  • Work closely with and incorporate feedback from Products and Engineering teams.
  • Define and lead end-to-end development of applications.

Qualifications:

  • Pursuing a Bachelor of Science or Master of Science in Computer Science, Computer Engineering, or related fields.
  • Experience with JavaScript, Java, or other object-oriented programming language.
  • Strong hands-on experience and understanding of object-oriented programming, data structures, algorithms, profiling & optimization.
  • Real passion for developing team-oriented solutions to complex engineering problems.
  • Thrive in an autonomous, empowering and exciting environment.
  • Great verbal and written communication skills to collaborate multi-functionally and improve scalability.
  • Interest in committing to a fun, friendly, expansive, and intellectually stimulating environment.

C3 AI provides excellent benefits and a competitive compensation package, which include:  

  • Salary range: $8,000 - $10,000 USD per month.

At the office, we offer a fully stocked kitchen with catered lunches, a free on-site gym membership, biweekly social hour with food, drinks, music, and plenty of opportunities to connect and network with your team.

Apply