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Trainee React Frontend Developer Jobs in California

Nastech Global

Frontend Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

Sunnyvale, CA (onsite) Job Type: Full time Must Have Technical/Functional Skills We are seeking a Senior Frontend Developer with deep expertise in React and JavaScript, and exposure to backend ...

Jobsbridge

Frontend Developer (React.JS)

San Jose, CA

$121K - $141K/yr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... frontend technologies (HTML5, CSS, JavaScript, and jQuery/Dojo/YUI). Strong experience with REACT ...

Tranzeal Incorporated

FRONTEND DEVELOPER

Sunnyvale, CA · On-site

$121K - $141K/yr

Tranzeal Incorporated is seeking a Frontend Developer to join their team. The role involves ... Responsibilities : • Strong hands-on experience with Java or Javascript • Proficiency in React ...

KBR Careers

Frontend Developer

El Segundo, CA · On-site

$110K - $128K/yr

They are seeking a Frontend Developer to join their National Security Solutions team, focusing on ... with React or other modern frameworks (secondary to Angular) • Familiarity with data ...

KBR, Inc

Frontend Developer

El Segundo, CA · On-site

$126 - $138/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Frontend Developer page is loaded## Frontend Developerlocations: El Segundo, Californiatime type ... Experience with React or other modern frameworks (secondary to Angular)* Familiarity with data ...

Helios WorldWide

Front End Developer

Santa Monica, CA · On-site +1

$116K - $135K/yr

Job Title: Front-End Developer Location: USA Remote Company: Forge, A Tech-Powered Creative Agency ... Proficient in Vue or React, HTML, JavaScript, and CSS. * Experience with using Git. * Knowledge of ...

Relay

Frontend Developer (React, TypeScript)

San Diego, CA · Remote

$2.0K/wk

  • Medical

  • Dental

  • Vision

We are looking for talented and motivated front-end engineers of all experience levels. Relay ... production React applications * 1 year of experience with TypeScript or other strongly-typed ...

Prodege LLC

Front-End Developer

El Segundo, CA · On-site

$124K - $157K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • PTO

Front-End Developer (Prodege, LLC; El Segundo, California ... Utilize core front-end technologies and frameworks such as React to develop and implement highly ...

KBR, Inc.

Frontend Developer

El Segundo, CA · On-site

$126K - $138K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Frontend Developer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides ... Experience with React or other modern frameworks (secondary to Angular) * Familiarity with data ...

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Trainee React Frontend Developer information

What does a Trainee React Frontend Developer do?

A Trainee React Frontend Developer is an entry-level software developer who focuses on building and maintaining the user interface of web applications using the React JavaScript library. They work under the guidance of senior developers to learn best practices, write clean code, and gain experience with technologies such as HTML, CSS, JavaScript, and React. Their responsibilities typically include assisting in the development of new features, fixing bugs, and learning how to use development tools and workflows. The goal is to build foundational skills in frontend development while contributing to real-world projects.

What types of projects and tasks can a Trainee React Frontend Developer expect to work on during their first six months?

As a Trainee React Frontend Developer, you will typically start with smaller tasks such as fixing bugs, writing unit tests, and implementing simple UI components under the guidance of senior developers. You'll gradually progress to working on larger features, integrating APIs, and collaborating with designers to ensure user interfaces are both functional and visually appealing. Regular code reviews and pair programming sessions are common, providing valuable feedback and learning opportunities. This phase is crucial for building a strong foundation in React and understanding best practices in frontend development.

What are the key skills and qualifications needed to thrive as a Trainee React Frontend Developer, and why are they important?

To thrive as a Trainee React Frontend Developer, you need a solid understanding of JavaScript, HTML, CSS, and foundational knowledge of React.js, often supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, basic knowledge of RESTful APIs, and exposure to development tools such as npm or Yarn are typically expected. Strong problem-solving abilities, attention to detail, and effective communication help you collaborate well within a team and adapt to feedback. These skills are crucial for building responsive user interfaces, maintaining code quality, and contributing effectively to dynamic development projects.

What is the difference between Trainee React Frontend Developer vs Junior React Developer?

AspectTrainee React Frontend DeveloperJunior React Developer
Required SkillsBasic knowledge of React, HTML, CSS, JavaScriptProficient in React, JavaScript, HTML, CSS, and some project experience
Work EnvironmentTraining programs, internships, entry-level projectsFull-time roles, collaborative teams, ongoing project development
CertificationsOptional, often part of training coursesPreferred but not mandatory; relevant certifications can be advantageous
ResponsibilitiesLearning, assisting in tasks, shadowing senior developersImplementing features, fixing bugs, contributing to codebase

The main difference between a Trainee React Frontend Developer and a Junior React Developer lies in experience and responsibilities. Trainees are typically in training or internship phases, focusing on learning and assisting, while Junior React Developers are expected to have a solid understanding of React and contribute actively to projects.

What are the most commonly searched types of React Frontend Developer jobs in California?

The most popular types of React Frontend Developer jobs in California are:

What are popular job titles related to Trainee React Frontend Developer jobs in California?

For Trainee React Frontend Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Trainee React Frontend Developer jobs in California look for?

The top searched job categories for Trainee React Frontend Developer jobs in California are:

What cities in California are hiring for Trainee React Frontend Developer jobs?

Cities in California with the most Trainee React Frontend Developer job openings:

Trainee React Frontend Developer jobs near you

React Front-End Developer

AVATAR IT Solutions Inc.

West Sacramento, CA • On-site

$107K - $125K/yr

Other

Posted 2 days ago

New

Job description


Job Title: React Front-End Developer
Work Mode: Hybrid – On-site 2 to 3 business days per week at Client Headquarters
Location: West Sacramento, CA
Contract: Up to 12 months, with an option to extend up to 36 additional months
Employment Type: Contract / Consulting
 
Position Overview
Client is seeking a Front-End Developer to design and build highly interactive analytics dashboards, reporting experiences, and AI/GenAI user interfaces for its Investment Data Warehouse (IDW).
 
The role will focus on React-based production-grade interfaces and AI/ML or GenAI experiences using technologies such as Chainlit and Streamlit, with emphasis on complex state management, real-time interactions, explainable AI, chat interfaces, streaming responses, and AI-assisted workflows.
 
Key Responsibilities
•    Support the Investment Data Warehouse (IDW) ecosystem and Investment-related BI, GenBI, AI/ML, and agentic AI use cases.
•    Work directly with Client Investment Data Solutions and collaborate with technical developers, Investment stakeholders, third-party vendor teams, and technical support.
•    Contribute to full-stack development and ongoing maintenance and operations of the IDW platform and deployed use cases.
•    Apply appropriate cloud, data, AI/ML, DevOps, security, scalability, monitoring, and automation practices relevant to the role.
•    Prepare technical documentation, designs, diagrams, models, and other artifacts as required.
•    Support knowledge transfer to appropriate Client employees.
 
Minimum Administrative Qualifications
 
1. Ten (10) years of experience in front-end UX/UI design for analytics dashboards and highly interactive reporting.
 
2. Atleast Six (6)years of experience in development with React for or building scalable,highly customized production-grade user interfaces.
 
3. At least four (4) years of experience in front-end development with Chainlit or Streamlit for AI/ML or GenAI solutions with complex state management & data handling (e.g., real-time updates; UI states for loading, retries, and partial responses).
 
4. At least four (4) years of experience in latency handling and async UX patterns, explainable AI interfaces (confidence, sources, disclaimers), and prompt design basics.
 
5. At least two (2) years of hands-on experience and proven ability to build chat interfaces (streaming responses, token handling), and AI-assisted workflows (autocomplete, summarization, recommendations).
 
Desirable Technical Qualifications
 
1. Holding technical certifications in the areas of: • AWS certifications
• Snowflake certifications
• BI certifications (Power BI, Tableau)
• AI/ML or GenAI-related coursework or credentials
 
2. At least five (5) years of experience in data engineering, data warehousing, or BI analytics.
 
3. At least three (3) years of experience working with AI/ML or GenAI technologies to design and build AI/GenAI solutions using cloud services such as AWS, Snowflake, or Azure.
 
4. Practical hands-on experience using OpenAI APIs or similar LLM platforms, building natural language to programming languages such as SQL/query, designing prompt strategies for business insights, and prompt engineering to guide system behavior.
 
5. Experience in developing semantic models supporting natural language querying and AI-driven analytics (i.e., GenBI); statistical analysis, predictive analytics, and optimization.
 
6. Have a bachelor’s degree in computer science, computer engineering, or related fields from an accredited or government sanctioned college/university. Client may request a copy of the diploma/degree.
 
7. The proposed onsite project person will be able to adhere to the hybrid working model by working on-site 2 to 3 business days per week at Client Headquarters, West Sacramento, CA. 
 

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