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Javascript Intern Jobs in California (NOW HIRING)

As a Visa intern, you'll build valuable connections across the organization, sharpen your ... Javascript, HTML * Experience with Write utilities / automation tools using Selenium, Java, REST ...

AI Automation Intern Founding AI Team Reporting Directly to Partner If you want to move fast, ship ... Proficiency in Python and/or JavaScript -- you don't need to be a systems engineer, but you need to ...

Technology & Innovation - Intern

San Francisco, CA · On-site

$17.75 - $23.50/hr

As a 2027 summer Intern at Riveron, you will gain experience across a breadth of functional and ... Proficiency in at least one programming language (e.g., Python, Java, JavaScript, C++) * Working ...

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Javascript Intern information

What is a Javascript intern?

A JavaScript Intern is an entry-level position where you assist in developing, testing, and debugging web applications using JavaScript. You work under the guidance of senior developers to enhance frontend or backend functionality, depending on the role. Typical tasks include writing code, fixing bugs, and learning best practices in software development. It's a great way to gain hands-on experience and improve your programming skills.

What kind of projects or tasks does a Javascript intern typically work on?

Javascript Interns are often involved in tasks such as developing new user interface features, fixing bugs in existing web applications, and writing or optimizing front-end code under the guidance of experienced developers. You may also participate in code reviews, help test website functionality, and assist with integrating APIs or other services. Interns commonly collaborate with design, backend, and QA teams, providing valuable exposure to real-world software development workflows. These experiences not only build technical proficiency, but also help interns understand how different roles contribute to delivering a complete web product.

What are the key skills and qualifications needed to thrive as a Javascript intern, and why are they important?

To thrive as a Javascript Intern, you need a solid understanding of core JavaScript concepts, HTML, CSS, and basic web development principles, typically backed by coursework or personal projects. Familiarity with tools like Git, browser developer tools, and modern JavaScript frameworks (such as React.js or Vue.js) is often expected. Strong problem-solving skills, eagerness to learn, and good communication abilities are essential soft skills for this role. These skills and qualities are vital for efficiently contributing to projects, collaborating with a development team, and adapting to the fast-paced technology environment.

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

The most popular types of Javascript jobs in California are:

What cities in California are hiring for Javascript Intern jobs?

Cities in California with the most Javascript Intern job openings:

Infographic showing various Javascript Intern job openings in California as of August 2026, with employment types broken down into 100% Part Time. Highlights an 100% Remote job distribution.

Software Engineer Intern

Foster City, CA • On-site

Visa
Finance and Insurance • 10K+ employees

Full-time

This job post has expired today. Applications are no longer accepted.


Visa rating

8.3

Company rating: 8.3 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

6th of 21 rated payment service providers


Job description

About Us
Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.
At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.
Join Visa and do work that matters - to you, to your community, and to the world. Progress starts with you.
Visa will accept applications for this role until at least 09-07-2026
Job Description
Visa's Internship Program provides an immersive, 12-week journey where you'll work on impactful projects that drive Visa's mission forward. As a Visa intern, you'll build valuable connections across the organization, sharpen your communication and business acumen, and gain hands-on experience in a dynamic, global environment.
Throughout the program, you'll have exclusive access to interactive workshops and learning sessions designed to deepen your expertise, expand your industry knowledge, and elevate your professional skillset. You won't just be learning, you'll be contributing, collaborating, and innovating every step of the way. In addition to professional development, you'll enjoy a variety of intern social events that foster community, connection, and fun throughout the summer.
The experience culminates in an exciting final presentation, where you'll showcase your project achievements, share key insights, and present your recommendations to Visa's leaders and stakeholders. This is your chance to demonstrate your business impact, highlight your personal growth, and align your work with Visa's vision for the future.
We are seeking Software Engineer interns across our Technology organization. As an intern, you will take on meaningful work, engage in out-of-the-box problem solving, and participate in global case challenges and impactful initiatives. You will get the chance to work with multiple teams, systems, and products through a wide variety of data sources. From technology to business, we are looking for people who can innovate, collaborate and bring Visa into the next level of a rapidly evolving digital marketplace.
During the internship, you will work on one or more hands-on projects with the team. Our summer internship also equips you with social and professional networking events and developmental workshops, designed to provide you the resources and training to have an impactful summer.
Some examples of previous summer intern projects:
  • Self-serve deployment of Kafka clusters using Docker and Kubernetes with auto scale up capability
  • Creating a natural language Chatbot for searching CDISI knowledge base
  • Developing a prototype that would automate payments at gas stations
  • Automating process for removing duplicate compromised account numbers using low latency algorithms
  • Improving the usage of Visa Checkout across all mobile and web devices
  • Developing testing tools to identify errors in internal systems
  • Creating visual monitoring tools to uncover transaction errors
  • Analyze, design, code and unit test software solutions and enhancements for an application that applies business logic and routes digital currency of global transactions
  • Develop a robust app factory to be used to create hundreds of mobile banking applications for iOS and Android with a single click
  • Implementation of a single development lifecycle, from Analysis and Design, Build, QA, Security, and Deployment. Begin to learn best and secure coding practices and standards

All Visa roles require digital fluency, including the ability to work with emerging technologies such as Generative AI tools (e.g. ChatGPT, Microsoft Copilot) to support everyday work
Visa requires at least 3 days in office, expectations of these days will be confirmed by your Hiring Manager.
Qualifications
Basic Qualifications
  • Students pursuing a Bachelor's degree in Computer Science, Computer Engineering, CIS/MIS, Cybersecurity, Business or a related field, graduating December 2027 or later.
  • Strong communications skills, specifically, the absence of repeated grammatical or typographical errors, clear and concise written and spoken communications that demonstrate professional judgment.

Preferred Qualifications
  • Proficiency in at least one programming language or technology including, but not limited, to Java, C/C++, C#, .NET, python, Javascript, HTML
  • Experience with Write utilities / automation tools using Selenium, Java, REST, Python, Groovy, and more
  • Familiarity with software testing principles
  • Solid understanding of software engineering concepts and methodologies
  • Document process, designs, test results, and analysis
  • Lead root cause analysis and track defect resolution to completion
  • Review and provide feedback on development code, test designs and test cases
  • Strong ability to collaborate
  • Highly driven, resourceful and results oriented
  • Good team player and excellent interpersonal skills
  • Good analytical and problem-solving skills
  • Demonstrated ability to lead and navigate through ambiguity

Work Authorization: Visa will not sponsor applicants for work visas in connection with this position. Future sponsorship will not be considered.
U.S. APPLICANTS ONLY: The estimated hourly range for a new hire into this position is $46.00 to $55.00 which may include potential sales incentive payments (if applicable). Salary may vary depending on job-related factors which may include knowledge, skills, experience, and location.
Work Hours
Varies upon the needs of the department.
Travel Requirements
This position requires travel 5-10% of the time.
Mental/Physical Requirements
This position will be performed in an office setting. The position will require the incumbent to sit and stand at a desk, communicate in person and by telephone, frequently operate standard office equipment, such as telephones and computers.
Visa is an EEO Employer
Qualified applicants will receive consideration for employment without regard to race, color religion, sex, national origin, sexual orientation, gender identity, disability or protect veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with the EEOC guidelines and applicable local law. Visa_Talent_Portal

What Visa employees say

Pay

Benefits

Hours and flexibility

Workplace

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Visa logo

About Visa

Sourced by ZipRecruiter

Visa is a global leader in digital payments, facilitating over 215 billion transactions annually across more than 200 countries and territories. Our mission is to connect the world through an innovative, reliable, and secure payments network, empowering individuals, businesses, and economies to thrive. When you become a part of Visa, you join a purpose-driven culture that values growth, embraces diversity, and recognizes the significance of your contributions. We believe in creating inclusive economies that uplift everyone, everywhere. Your work at Visa will directly impact billions of people worldwide, enabling access to financial services and shaping the future of money movement.

Industry

Finance and insurance

Company size

10,000+ Employees

Headquarters location

San Francisco, CA, US

Year founded

1958