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Java Programmer Internship Jobs in Castro Valley, CA

xAI

Software Engineer, Ads Product

Palo Alto, CA

$150K - $350K/yr

Experience building software through internships, projects, research, open-source work, startups ... Experience with React, Golang, Python, Rust, gRPC, Java, or Scala. * Experience with machine ...

xAI

Software Engineer, Ads Product

Palo Alto, CA · On-site

$150K - $350K/yr

Experience building software through internships, projects, research, open-source work, startups ... Experience with React, Golang, Python, Rust, gRPC, Java, or Scala. * Experience with machine ...

NimbleRx

Senior Fullstack Engineer

Redwood City, CA · On-site

... Mentor junior engineers and interns • Promote best practices and high-quality development ... with Java / Spring Boot, React, ECMAScript standard and SQL (MySQL) • Experience developing ...

Intuit

Software Engineer 1

Mountain View, CA · On-site

$55.50 - $75/hr

Coursework, internships, personal projects, or academic experience with one or more programming languages (e.g., Java, Python, JavaScript, C++, etc.). * Basic knowledge of front-end web technologies ...

Intuit

Software Engineer 1

Mountain View, CA

$55.50 - $75/hr

Coursework, internships, personal projects, or academic experience with one or more programming languages (e.g., Java, Python, JavaScript, C++, etc.). * Basic knowledge of front-end web technologies ...

Intuit

Software Engineer 1

Mountain View, CA · On-site

$55.50 - $75/hr

Coursework, internships, personal projects, or academic experience with one or more programming languages (e.g., Java, Python, JavaScript, C++, etc.). * Basic knowledge of front-end web technologies ...

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Java Programmer Internship information

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How much do java programmer internship jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for java programmer internship in Castro Valley, CA is $63.67, according to ZipRecruiter salary data. Most workers in this role earn between $54.66 and $72.40 per hour, depending on experience, location, and employer.

What is a Java Programmer Internship job?

A Java Programmer Internship is a temporary position designed for students or entry-level developers to gain hands-on experience in Java programming. Interns typically work on real-world projects, assisting in coding, debugging, testing, and maintaining Java applications. They collaborate with senior developers, learn industry best practices, and enhance their technical skills. This internship helps build a strong foundation for a career in software development by providing practical exposure to Java frameworks, tools, and development environments.

What are the key skills and qualifications needed to thrive in the Java Programmer Internship position, and why are they important?

To thrive as a Java Programmer Intern, you should have a solid understanding of Java programming fundamentals, object-oriented design, and basic data structures, usually supported by coursework or academic projects. Familiarity with development tools such as Eclipse or IntelliJ IDEA, source control systems like Git, and basic knowledge of SQL or web technologies is often expected. Strong problem-solving skills, eagerness to learn, attention to detail, and effective communication will help you stand out in a collaborative environment. These abilities ensure you can contribute to real-world coding tasks, adapt quickly to new challenges, and integrate smoothly within a team.

What kinds of projects or tasks do Java Programmer Interns typically work on?

As a Java Programmer Intern, you can expect to work on a variety of tasks such as writing and testing code, fixing bugs, assisting with feature development, and supporting larger software projects under the guidance of experienced developers. Interns often participate in code reviews and team meetings to understand workflow and best practices. You'll likely have opportunities to collaborate with team members in both individual and group assignments, allowing you to apply your academic knowledge to practical scenarios. This hands-on experience is designed to help you build your programming skills and gain insight into professional software development processes.

What are the most commonly searched types of Java Programmer jobs in Castro Valley, CA? The most popular types of Java Programmer jobs in Castro Valley, CA are:
What are popular job titles related to Java Programmer Internship jobs in Castro Valley, CA? For Java Programmer Internship jobs in Castro Valley, CA, the most frequently searched job titles are:
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Java Programmer Internship jobs near you
Infographic showing various Java Programmer Internship job openings in Castro Valley, CA as of June 2026, with employment types broken down into 38% Internship, 31% Full Time, and 31% Part Time. Highlights an 84% In-person, 8% Hybrid, and 8% Remote job distribution, with an average salary of $132,436 per year, or $63.7 per hour.

Software Engineer, Ads Product

xAI

Palo Alto, CA

$150K - $350K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 16 days ago

Job description

ABOUT xAI

xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company's mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

ABOUT THE ROLE:

X Ads is one of the highest-leverage product areas at X. You'll work on systems that operate at massive scale, directly affect the business, and are being rebuilt with modern infrastructure and AI at the center. This is an opportunity to join a small, fast-moving team where early-career engineers can take on real ownership, learn from strong engineers, and ship products that matter.
We're looking for high-slope software engineers who want to help rebuild and transform the X Ads Platform using xAI's infrastructure and AI stack.

This role is a great fit for engineers who are early in their careers but learn quickly, ship fast, and want to work on products and systems that operate at massive scale. You do not need to have deep ads experience already, but you should be excited to learn how large-scale advertising systems work and how AI can make ads more relevant, useful, and effective.

You'll work across product, backend systems, infrastructure, and AI-powered features that directly impact the majority of X's revenue.

RESPONSIBILITIES:
  • Build and ship product features across the X Ads Platform.
  • Work on systems related to ad delivery, targeting, optimization, measurement, and advertiser experience.
  • Use xAI's infrastructure and AI capabilities to improve the performance and quality of advertising products.
  • Contribute to distributed systems that need to be reliable, fast, and scalable.
  • Collaborate closely with engineers, product leads, and cross-functional partners to turn ideas into working products.
  • Learn quickly, take ownership, and operate in a fast-moving environment where high-quality execution matters.
  • Debug, maintain, and improve production systems that serve real users and drive significant business impact.
BASIC QUALIFICATIONS:
  • Strong software engineering fundamentals.
  • Ability to write clean, maintainable code and learn new codebases quickly.
  • Strong problem-solving skills and comfort working through ambiguity.
  • Experience building software through internships, projects, research, open-source work, startups, or full-time roles.
  • Interest in backend systems, distributed systems, data pipelines, product engineering, or AI applications.
  • A bias toward action: you like shipping, learning from real users, and improving quickly.
  • Strong ownership mindset and willingness to take responsibility for meaningful parts of the product.
  • Excitement about building high-quality product experiences for advertisers and users.
PREFERRED SKILLS AND EXPERIENCE:
  • Experience with ads, recommendations, search, ranking, marketplaces, payments, analytics, or growth systems.
  • Experience working with large-scale backend systems or data processing pipelines.
  • Experience with React, Golang, Python, Rust, gRPC, Java, or Scala.
  • Experience with machine learning, LLMs, experimentation, ranking, or optimization systems.
  • Prior startup, research, internship, or high-impact project experience.

You do not need to know every technology listed below. We care more about strong fundamentals, learning speed, and ability to ship.

  • React
  • Golang
  • Python
  • Rust
  • gRPC
  • Java / Scala
COMPENSATION AND BENEFITS:

$150,000 - $350,000 USD

Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

xAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.