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Software Developer Internship Jobs in Fullerton, CA

VSolvit

JUNIOR FULL STACK DEVELOPER

Norco, CA · On-site

Required : • Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related field (or equivalent internship/project experience). • 1-2 years of academic ...

Intertech, Inc

3093 - Sr. Software Engineer

Irvine, CA · On-site

$150 - $200/hr

... developer to join our team and build out a variety of cloud, data, and application development ... Ability to mentor junior engineers or interns What We're Looking For * A well-rounded engineer who ...

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How much do software developer internship jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for software developer internship in Fullerton, CA is $23.89, according to ZipRecruiter salary data. Most workers in this role earn between $19.33 and $25.34 per hour, depending on experience, location, and employer.

What is a software developer internship?

A Software Developer Internship is a temporary position designed for students or recent graduates to gain hands-on experience in software development. Interns work alongside experienced developers to assist in coding, debugging, testing, and sometimes designing software solutions. The role helps interns improve their programming skills, understand software development workflows, and gain exposure to industry tools and practices. Many internships also offer mentorship and networking opportunities, which can lead to full-time positions after graduation.

What types of projects or assignments can I expect as a software developer intern?

As a Software Developer Intern, you'll typically work on real-world projects that support the ongoing development goals of your team, such as building features, fixing bugs, or participating in code reviews. Many internships involve collaborating with full-time developers, attending daily stand-ups, and sometimes contributing to documentation or testing efforts. This hands-on experience not only helps you apply classroom knowledge but also exposes you to agile development methodologies and workplace best practices. You'll have the opportunity to make impactful contributions while learning from experienced mentors and peers.

What are the key skills and qualifications needed to thrive in a software developer internship, and why are they important?

To thrive as a Software Developer Intern, you need a foundational understanding of programming languages such as Python, Java, or C++, typically supported by relevant coursework or coding projects. Familiarity with version control tools like Git, basic software development frameworks, and participation in coding bootcamps or certifications is advantageous. Strong problem-solving ability, eagerness to learn, and effective communication skills set top candidates apart. These skills and qualities enable interns to effectively contribute to projects, collaborate with teams, and adapt quickly to professional development environments.

What does a software developer internship do?

A software developer internship provides hands-on experience in designing, coding, testing, and debugging software applications under the supervision of experienced developers. Interns often work on real projects, learn industry tools like version control systems, and develop programming skills in languages such as Java, Python, or C++. The internship helps build practical knowledge and professional skills for a future career in software development.

What are the most commonly searched types of Software Developer jobs in Fullerton, CA?

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For Software Developer Internship jobs in Fullerton, CA, the most frequently searched job titles are:

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Cities near Fullerton, CA with the most Software Developer Internship job openings:

Software Developer Internship jobs near you
Infographic showing various Software Developer Internship job openings in Fullerton, CA as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 10% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $49,682 per year, or $23.9 per hour.

Associate Software Engineer (Intern / Co-Op)

Mesh Optical Technologies

Gardena, CA

$26 - $38/hr

Full-time, Internship

Re-posted 29 days ago

Job description

ASSOCIATE SOFTWARE ENGINEER

Mesh Optical Technologies was founded on the belief that optical photons will be at the center of advanced technologies in the coming century. Making advanced technology ubiquitous means building at scale, and that's exactly what we're doing at Mesh.

Our interns and co-ops are embedded in the engineering team and own real work-not side projects. We are seeking an Associate Software Engineer to contribute directly to the codebase that operates both our optical interconnect product and factory.

RESPONSIBILITIES

  • Work with your mentor to implement and test bare-metal drivers for IC, SPI, ADC, DMA, and other interfaces
  • Assist in node bring-up from power-on to firmware load, capturing boot logs and helping debug hardware-software interactions in the lab
  • Gain experience designing and implementing algorithms for link optimization and per-unit calibration in C++ and Python
  • Come up with new software-enabled ways to automatically validate device operation and production processes

BASIC QUALIFICATIONS

  • Pursuing or recently completed a BS or MS in Computer Science, Computer Engineering, or a related field with a GPA of 3.5 or greater
  • Portfolio of hands-on projects with a hardware element: embedded firmware, robotics, signal-processing, etc. for Formula SAE, SolarCar, Robotics, CubeSats, or other club/personal builds. Portfolios of software-only projects will not be considered.
  • Exposure to IC, SPI, ADC sampling, or similar protocols, and a curiosity for low-level hardware interfaces
  • Proficient in Python and C or C++ and comfort working in a Linux environment
  • Strong analytical mindset, first-principles problem solving, and clear communication

PREFERRED SKILLS AND EXPERIENCE

  • Your projects demonstrate not just software engineering aptitude but also multidisciplinary knowledge of electrical engineering and mechanical engineering concepts

COMPENSATION AND BENEFITS:

Pay range: 
Associate Software Engineer: $26.00 - $38.00/per hour

Base salary is determined based your academic year. In addition to base salary, compensation for this role includes a flexible monthly housing and transportation stipend during your time in Los Angeles.

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