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Intern Javascript Developer Jobs in California (NOW HIRING)

Five9

Software Developer AI Insights Intern

San Ramon, CA · Hybrid

$21.50 - $28.25/hr

... Engineer Intern Contribute. Contribute to the success of the company, your team, and real ... Familiarity with Web Technologies (HTML, CSS, DOM, JavaScript) and web standards (HTML5)

FreelancerProX

Software Developer - Intern

Union City, CA · On-site +1

$21.50 - $28.25/hr

About the job Software Developer - Intern Company Overview: Freelancer Prox is the first platform ... Familiarity with web development technologies such as HTML, CSS, and JavaScript * Knowledge of ...

Norstella

Software Engineer Intern

Sacramento, CA · Remote

Intern Job ID: R-1948 Description About Norstella: Norstella is a premier and critical global life ... DevOps tooling is a plus Tech-Stack: * Foundational technologies of the web: HTML, CSS, JavaScript ...

NEOGOV

Engineering Intern

Los Angeles, CA · On-site

$30/hr

... developer to maintain and expand existing code with a focus on concept, functionality, and user ... HTML5, CSS, Javascript, and more Working knowledge of relational databases and SQL Expert ...

TIKAJ

We are looking for a Full Stack developer intern who is proficient with Javascript. Your primary focus will be with the development team to design, develop and debug web applications. * HTML5/CSS3 ...

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How much do intern javascript developer jobs pay per hour?

As of Jun 3, 2026, the average hourly pay for intern javascript developer in California is $22.59, according to ZipRecruiter salary data. Most workers in this role earn between $18.27 and $23.94 per hour, depending on experience, location, and employer.

What is an Intern Javascript Developer job?

An Intern JavaScript Developer is an entry-level role where aspiring developers gain hands-on experience in web development using JavaScript, HTML, CSS, and related technologies. Interns typically assist in coding, debugging, testing, and supporting front-end or full-stack applications under the guidance of senior developers. This role helps build foundational programming skills, familiarity with frameworks like React or Node.js, and an understanding of best development practices. Internships are a great way to gain practical experience, improve coding skills, and transition into a full-time development role.

What are the key skills and qualifications needed to thrive in the Intern Javascript Developer position, and why are they important?

To thrive as an Intern Javascript Developer, you need a solid understanding of JavaScript fundamentals, HTML, CSS, and basic web development concepts, often gained through coursework or self-study. Familiarity with tools like version control systems (e.g., Git), browser developer tools, and popular JavaScript libraries or frameworks is highly valued. Strong problem-solving abilities, eagerness to learn, and good communication skills help interns adapt quickly and contribute effectively to team projects. These strengths enable interns to develop real-world coding experience, work efficiently in collaborative environments, and grow into more advanced developer roles.

What types of projects or tasks can I expect to work on as an Intern Javascript Developer?

As an Intern Javascript Developer, you can expect to assist with developing and testing frontend features, fixing bugs, and building user interfaces using JavaScript, HTML, and CSS. You may also support senior developers by helping to maintain codebases, participate in code reviews, and contribute to team meetings or brainstorming sessions. Projects often include real-world web applications, where your code contributions will have a direct impact. This hands-on experience is a great opportunity to apply your skills, collaborate with experienced developers, and learn industry best practices in a supportive environment.
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Intern Javascript Developer jobs near you
Infographic showing various Intern Javascript Developer job openings in California as of May 2026, with employment types broken down into 1% As Needed, 67% Full Time, 30% Part Time, 1% Temporary, and 1% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $46,997 per year, or $22.6 per hour.
Software Developer AI Insights Intern

Software Developer AI Insights Intern

Five9

San Ramon, CA • Hybrid

$21.50 - $28.25/hr

Other

Posted 17 days ago

Job description

Internship Program 

At Five9 we are committed to providing an exceptional experience for our interns. We tailor our program to provide participants with real, impactful work, contributing directly to the continued success of Five9. Through our Speaker Series, Intern Buddies, Employee Resource Groups, and other events, you'll have the opportunity to meet and learn from some of the best in the business. 

This is a full-time, paid internship based out of our headquarters in San Ramon, CA. This role is hybrid. 3 days a week (M, W, TH) in office is required. The program runs 11 weeks with the opportunity to start in early or mid-June. 

As an intern at Five9, you can expect to:  

Learn.  Learn about Five9, our culture and what makes Five9 special. 

"The people here at Five9 have been super supportive of my learning - it's less intimidating to approach people, ask them about what they do, and more often than not they're willing to teach you a few things about their fields of work." - Security Software Engineer Intern

Contribute.  Contribute to the success of the company, your team, and real, impactful projects. 

"Working at Five9 has been an enriching journey of learning and impact, where the work I am doing truly feels significant. I've gotten the chance to learn about high level business strategies and ensure that the work I do contributes to the business's overarching goals." - PS Education Services Intern

Grow.  Grow as a student, an employee, as a person! 

"I have always been very career-oriented, and this summer I've realized how important it is to also focus on other aspects of my life. Meeting different employees at Five9 and hearing their career trajectory made me realize that everything will work out, eventually, and to take my time exploring my interests. However, that doesn't mean I will halt all career goals. I plan to continue networking with industry professionals and building my knowledge on using different data analytics tools. Seeing the way my team and the People Team utilize the data we have, made me realized just how much I enjoy working with and interpreting the data that is gathered." - Talent Management Intern 

The Team

Our innovative Artificial Intelligence (AI) team is seeking a talented and enthusiastic Software Developer AI Insights summer intern to join our summer internship program. In this role, you will be part of the team that builds software that brings AI technologies to users. Prior AI experience is not required - you will have the opportunity to integrate with AI technologies from vendors like Google, Open AI, Databricks and Amazon, and thus receive on-the-job experience for some of the hottest skills on the market. An ideal candidate for us is someone who is enthusiastic about AI technology, a proactive problem solver and a creative self-starter.

Key Responsibilities:

  • Be part of an agile team developing a scalable, highly available application platform using modern PaaS platforms such as GCP.
  • Testing Generative Artificial Intelligence (GenAI) integration with Knowledge Distiller and Azure OpenAI platform.
  • Utilizing Java Spring Framework, Spring Boot and reactive programming pattern for creation of highly scalable, robust microservices.
  • Document the testing procedure and environment.
  • Communicate clearly about the testing results.

Key Skills:

  • Java, Reactive programming (desirably, but not required to have experience with rxjava or similar) and JavaScript.
  • General theoretical understanding of PaaS hosted relational and no-SQL databases (mySQL, BigTable, DataStore, etc.)
  • Developing automated test cases with modern tools such as Junit.
  • Familiarity with Web Technologies (HTML, CSS, DOM, JavaScript) and web standards (HTML5)
  • Desirable familiarity with client-side JavaScript Toolkits such as React.
  • Positive, self-motivated and enthusiastic attitude with a strong sense of ownership.
  • Proactive communication skills, both verbal and written

 

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