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Software Tester Internship Jobs in California (NOW HIRING)

Clerkie

Software Engineer Internship

San Francisco, CA · On-site +1

$80/hr

A note before you apply We're hiring Software Engineering Interns! This is a full-time salaried 12 ... Experience with testing frameworks (Jest, Mocha) * Interest in fintech or financial literacy Other ...

Danaher

Software Automation Internships

Stockton, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

Pomona, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

Arcata, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

Fresno, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

Merced, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

San Jose, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

Danaher

Software Automation Internships

Chico, CA · On-site

Troubleshooting system and software issues Collaborating with cross-functional teams on ... internship start * Experience with hands-on lab testing and technical documentation (e.g., lab ...

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How much do software tester internship jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for software tester internship in California is $25.08, according to ZipRecruiter salary data. Most workers in this role earn between $20.38 and $28.46 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed for a software tester internship?

To thrive as a Software Tester Intern, you need a basic understanding of software development and testing concepts, proficiency in writing test cases, and typically a background in computer science or a related field. Familiarity with testing tools such as Selenium, JIRA, or Postman, as well as basic scripting or programming skills, is commonly required. Strong attention to detail, problem-solving abilities, and clear communication are essential soft skills in this role. These skills are important to identify software defects, ensure product quality, and effectively collaborate with developers and team members.

What is a software tester internship?

A Software Tester Internship is an entry-level role where interns assist in evaluating software applications to identify bugs, defects, and inconsistencies. Interns typically work alongside experienced testers and developers, executing test cases, documenting results, and reporting issues. They gain hands-on experience with testing methodologies, automation tools, and quality assurance processes. This internship helps build foundational skills in software testing and can lead to full-time opportunities in QA or development roles.

What does a software tester intern do?

As a Software Tester Intern, your typical responsibilities include reviewing software requirements, creating and executing test cases, reporting bugs, and collaborating with developers to resolve issues. You may also assist with manual and automated testing, regression testing, and documentation of test results. It's common to participate in team meetings and communicate feedback about the application's functionality and user experience. This hands-on experience allows you to learn industry best practices and gain a practical understanding of the software development lifecycle.

What are the most commonly searched types of Software Tester jobs in California?

The most popular types of Software Tester jobs in California are:

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For Software Tester Internship jobs in California, the most frequently searched job titles are:

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Software Tester Internship jobs near you
Infographic showing various Software Tester Internship job openings in California as of August 2026, with employment types broken down into 1% Internship, 85% Full Time, 9% Part Time, 2% Temporary, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $52,174 per year, or $25.1 per hour.

Flight Software Internship - Spring 2027

Varda Space Industries

El Segundo, CA

$37/hr

Full-time, Internship

Posted 7 days ago

Job description

About This Role 

Spring internships will range between the months of January and May. All dates dependent upon the university schedule of the selected students. Internships are full-time and on-site in Los Angeles, CA. To be considered for this internship, candidates must be actively enrolled in an accredited undergraduate or graduate degree program. 

As a Software Engineering Intern, you will contribute to the software that powers Varda's missions across ground systems, flight and embedded software, testing and simulation, and developer platform and infrastructure. You will help build tools and services that assist engineers and operators in monitoring, commanding, and analyzing spacecraft, strengthen testing and simulation capabilities, and improve reliability and observability for missioncritical operations.

Internships at Varda are optimal for students looking to grow technically and professionally while working on impactful projects critical to the company's success. We encourage applicants from all backgrounds, including those historically underrepresented in aerospace and software, as well as candidates from nontraditional educational paths. If you are driven by curiosity, motivated to learn fundamentals, and excited to tackle real engineering constraints, we want to hear from you. Even if you don't meet every preferred skill or haven't had access to robotics teams, embedded labs, or maker spaces. We value potential, clarity of thought, and growth mindset, and we're dedicated to providing an experience that will let your decisions and contributions help drive Varda's success. 

Responsibilities

You will be paired with mentors across Mission Software, Flight Software, and Embedded Systems, and your projects will be matched to your skills and coursework.

  • Use firstprinciples reasoning to approach problems and justify design tradeoffs.
  • Build Python and/or C++ tools, services, and libraries that interface with flight and ground systems, emphasizing correctness, determinism, and observability.
  • Contribute to automation for simulation, hardwareintheloop, and scenariobased testing.
  • Debug issues that cross abstraction boundaries, including OS behavior, networking, timing, and hardwaresoftware interactions.
  • Collaborate across flight software, embedded systems, mission operations, and test teams; communicate clearly, ask clarifying questions early, and seek support when needed.
Basic Qualifications

  • Proficiency in C++

  • Experience working with embedded systems or microcontrollers (not limited to Arduino)

  • Understanding of core computer science fundamentals including data structures, algorithms, and operating systems.

  • Ability to debug complex software issues and comfort working in Linux environments.
Preferred Skills And Experience 
  • Familiarity with systems fundamentals including concurrency, networking, performance, and reliability.
  • Exposure to realtime embedded development or safetycritical software, and a working knowledge of math and physics.
  • Experience may come from coursework, personal projects, community college, bootcamps, opensource contributions, internships, or selfdriven learning. We care more about your fundamentals, curiosity, and engineering approach than how you acquired them.
  • Participation in any project work. Whether robotics, rocketry, capstone projects, personal builds, lab work, or opensource contributions. Focus on demonstrating an interest in understanding systems beneath abstraction layers.
Relevant Coursework 

  • Computer Architecture

  • Operating Systems

  • Software Engineering / Computer Science Fundamentals

  • Data Structures & Algorithms

  • (Bonus) Signals and Systems

  • (Bonus) Digital Design, Assembly, Embedded Systems, Electronics

Compensation
  • Hourly Rate: $37.00
  • Housing stipend for interns relocating to the area
  • Commuter benefit to support local transportation

Apply