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Contract React Frontend Developer Jobs in California

Frontend Developer

Palo Alto, CA · On-site

$110K - $160K/yr

Our ideal Frontend Developer is hands-on, collaborative, self-motivated, and innovative. She or he ... In-depth hands-on experience with industry standard frameworks like React or similar. * Confident ...

Front End Developer

Mountain View, CA · On-site

$122K - $142K/yr

* Extensive experience with web technologies and frameworks, including Angular 2+/React/VueJS/Node/CSS * Extensive experience solving cross-browser compatible front-end web experiences with React.js ...

$119K - $157K/yr

Identify and communicate best practices for front-end engineering Qualifications Requirements ... AngularJS, React, Backbone * Experience with mobile JavaScript frameworks * Experience developing ...

$119K - $157K/yr

Identify and communicate best practices for front-end engineering Qualifications Requirements ... AngularJS, React, Backbone * Experience with mobile JavaScript frameworks * Experience developing ...

Front End Developer

San Jose, CA

$121K - $141K/yr

Required Skills/Experience: Senior Front-end- Web developer with 8-12 years' experience ... React/Ember/Sencha/Angular/Meteor/Ember - frameworks Knowledge of REST/HTTP-AJAX/Websocket/Async ...

Jive Front End Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

Contract Location : Sunnyvale, CA 94085 Role Description; Create and modify custom Jive Templates that are based on Soy and Freemarker for Jive 6.0 Skills: -Experience working with Jive -Front End ...

Front End Developer

Sunnyvale, CA · On-site

$124K - $144K/yr

Job Duties:React Native Mobile Developer: - Design, and develop mobile SDKs using React Native - Deep understanding of mobile platforms: Android and iOS - Well versed with building React Native ...

Front End React Developer

San Jose, CA · On-site

$120K - $140K/yr

... Developer - JavaScript & React Location: Mountain View, CA- 2 days per week onsite & others days remote Duration: 6 months + (likely long term extensions) Project Description: Utilize frontend and ...

Showing results 41-60

Contract React Frontend Developer information

How does a contract React frontend developer typically collaborate with design and backend teams during a project?

As a Contract React Frontend Developer, you’ll frequently work alongside UI/UX designers to translate visual concepts into interactive features, ensuring that designs are both functional and visually consistent. You'll also coordinate with backend developers to integrate APIs and align on data structures, which often involves regular stand-ups or sprint meetings. Effective communication and familiarity with collaborative tools (like Jira, Figma, or Git) are essential to keep everyone aligned, especially since contract roles may require ramping up quickly on existing team workflows.

What is a contract React frontend developer?

A Contract React Frontend Developer is a software professional hired on a temporary or project basis to build and maintain user interfaces using the React JavaScript library. They focus on translating design mockups and requirements into interactive, responsive web applications. Unlike full-time employees, contract developers typically work for specific durations or on particular projects, often bringing specialized expertise to help teams meet their goals efficiently. Companies hire contract React developers to scale up their frontend development efforts or to introduce advanced capabilities without long-term commitments.

What are the key skills and qualifications needed to thrive as a contract React frontend developer?

To thrive as a Contract React Frontend Developer, you need a solid understanding of JavaScript, React.js, HTML, CSS, and experience with responsive web design, often supported by a relevant computer science degree or proven portfolio. Familiarity with tools like Redux, Git, RESTful APIs, and testing frameworks (e.g., Jest or Cypress) is typically required, and certifications in modern JavaScript frameworks can be advantageous. Strong problem-solving, adaptability, and clear communication skills help you collaborate effectively with teams and clients in dynamic contract environments. These skills and qualities ensure you can deliver high-quality, maintainable code efficiently while meeting client needs and adapting to changing project requirements.
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Infographic showing various Contract React Frontend Developer job openings in California as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Frontend Developer

Vianai Systems

Palo Alto, CA • On-site

$110K - $160K/yr

Full-time

Re-posted 25 days ago


Job description

The Opportunity:

Vianai is looking for an experienced Frontend Developer who will define and deliver the strategy and roadmap for a human-centered AI experience throughout a growing collection of ML products. Our ideal Frontend Developer is hands-on, collaborative, self-motivated, and innovative. She or he should be as excited as we are to create human-centered AI products poised for rapid growth and continued success.

Expectations:

  • The candidate will be part of the ML data science and engineering team to build complex interfaces from the ground up for enterprise scale.
  • Collaborate with a diverse team of Designers, Developers, Engineers, and Data Scientists.
  • Translate designs and wireframes into high quality user interfaces.
  • Demonstrates up-to-date expertise in Software Engineering and applies this to the development, execution, and improvement of action plans.
  • Strong analytical and quantitative problem solving ability.
  • Communicate and present their work in a clear and simple manner with relationship skills and a strong team player.

Qualifications:

  • BS in Computer Science, Human Machine Interface Design, Human-Computer Interaction, or equivalent.
  • 3-5 years experience with web application development using HTML, CSS, JavaScript, and other industry standard frameworks.
  • 1-3 years experience with data visualization frameworks such as D3.
  • Passion for simplicity and an ability to clearly present complex data in a consumable manner across multiple chart/graph types.
  • In-depth hands-on experience with industry standard frameworks like React or similar.
  • Confident hands-on from initial wireframes, prototyping, converging to final application.
  • Good understanding of asynchronous request handling (AJAX).
  • Experience with RESTful APIs and unit testing.
  • Meticulous attention to technical and visual details.
  • Curious about new technology, able to change quickly.

Preferred Qualifications:

  • MS, or PhD in Computer Science, Human Machine Interface Design, Human-Computer Interaction, or equivalent.
  • Hands on experience in full stack web application development.
  • Familiar with data stack applications like SQL Database, Data warehouse, Kafka etc.
  • Knowledge in Business Intelligence, Machine Learning.

Who We Are:

We are a team of engineers, designers, doers, makers, and thought leaders. We are also sisters and brothers, fathers and mothers, partners and friends. We are curious and creative, confident and humble and we have a passion for what's next. We believe that when used to amplify our humanity, our technology has the power to do good in the world.

While Vianai is a part of each one of us, it isn't all of us.

Our company is founded on a culture of trust, empowerment, and respect. We bring our whole self to work - the non-perfect, messy, sometimes imposter, sometimes expert, sometimes vulnerable, and sometimes superhuman self that contributes to what we believe in. We are committed to advancing inclusion, equity, and diversity because we believe that to design more transparent and beneficial AI systems, we need architects of all types. And to us, the more perspectives the better.

Vianai has deep expertise in enterprise technologies and landscapes, business application development, engineering services, design thinking, and cutting-edge AI research. We are a startup, and we are founded, funded, and led by veterans of the industry. We think and work like entrepreneurs, but we've brought a wealth of experience and expertise that is deeply relevant to our mission and the market opportunity.

About Vianai:

Vianai is a Human-Centered AI platform and products company amplifying the power of human understanding and collaboration together with advanced AI techniques, to drive transformation. Vianai's unique human-centered approach empowers data professionals and domain experts to leverage causal data science, drive deeper intelligence into decision making and improve business outcomes. Vianai customers include many of the world's largest and most respected companies in manufacturing, financial services, retail, and aerospace and defense, among many others. The company is headquartered in Palo Alto, California, and has an R&D center in Israel.

Employment Type: FULL_TIME