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Junior Frontend Software Engineer Jobs in California

Chalk

Frontend Software Engineer

San Francisco, CA · On-site

They are seeking experienced Frontend Software Engineers to define architecture patterns, develop reusable components, and collaborate across teams to improve the platform. Responsibilities : • ...

VDart, Inc.

Senior Front-End Software Engineer

Los Angeles, CA · On-site

$132K - $181K/yr

Senior Front-End Software Engineer Contract Location - Los Angeles, CA / New York City, NY - Remote but need to come to office on day 1 Mandate Skills: * React 18.2.0 & TypeScript 5.9.2 * State ...

New

Alpha Numero

Front End Developer

Irvine, CA

$111K - $129K/yr

We are looking for a highly skilled Front End Software Engineer who is familiar with cloud based application development and modern SDLC approaches. The Front End Software Engineer will be ...

Collate

Frontend Software Engineer

San Francisco, CA

About the Role We're looking for a Frontend Software Engineer to define how people experience Collate. The work you do will translate cutting-edge AI into tools that feel simple, reliable, and human ...

Alpha Numero

Front End Developer

Irvine, CA · On-site

$111K - $129K/yr

We are looking for a highly skilled Front End Software Engineer who is familiar with cloud based application development and modern SDLC approaches. The Front End Software Engineer will be ...

Collate

Frontend Software Engineer

San Francisco, CA · On-site

About the Role We're looking for a Frontend Software Engineer to define how people experience Collate. The work you do will translate cutting-edge AI into tools that feel simple, reliable, and human ...

Collate

Frontend Software Engineer

San Francisco, CA

About the Role We're looking for a Frontend Software Engineer to define how people experience Collate. The work you do will translate cutting-edge AI into tools that feel simple, reliable, and human ...

Outset.ai

Frontend Software Engineer

San Francisco, CA · On-site

$160K - $300K/yr

... software engineering experience building production-grade frontend systems. * Strong proficiency with JavaScript/TypeScript, React, and Next.js. * Experience building scalable, responsive web ...

HeyGen

Frontend Software Engineer

San Francisco, CA · On-site

$180K - $240K/yr

As a Frontend Engineer at HeyGen, you will play a crucial role in shaping the future of our cutting-edge platform, focusing primarily on the development and enhancement of its user-facing components.

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Junior Frontend Software Engineer information

What are the key skills and qualifications needed to thrive as a junior frontend software engineer, and why are they important?

To thrive as a Junior Frontend Software Engineer, you need proficiency in HTML, CSS, JavaScript, and a basic understanding of responsive web design, often backed by a computer science degree or relevant coursework. Familiarity with frameworks like React or Vue.js, version control systems such as Git, and basic debugging tools is typically expected. Strong problem-solving skills, attention to detail, and effective communication help you collaborate with team members and quickly learn on the job. These skills and qualities are crucial for building user-friendly interfaces, maintaining code quality, and integrating smoothly into development teams.

What does a junior frontend software engineer do?

A Junior Frontend Software Engineer is responsible for developing and maintaining the user interface of web applications. They work with technologies like HTML, CSS, and JavaScript to create visually appealing and interactive websites. Typically, they collaborate with designers and backend developers to ensure that the application is both functional and user-friendly. Juniors often focus on learning best practices, fixing bugs, and implementing new features under the guidance of more experienced engineers.

What are common challenges faced by junior frontend software engineers when transitioning from learning to working on production code?

Junior Frontend Software Engineers often find adapting to real-world codebases challenging, as they tend to be larger, more complex, and involve collaboration with multiple team members. They may encounter difficulties understanding legacy code, adhering to established coding standards, and using version control systems effectively. Additionally, balancing the need for rapid feature development with maintaining code quality and usability can be an adjustment. Support from senior engineers and regular code reviews are valuable in overcoming these challenges and building confidence.

What is the difference between Junior Frontend Software Engineer vs Junior Web Developer?

AspectJunior Frontend Software EngineerJunior Web Developer
Required CredentialsTypically a degree in Computer Science or related field, familiarity with HTML, CSS, JavaScriptOften a degree or self-taught, basic knowledge of HTML, CSS, JavaScript
Work EnvironmentCollaborates with designers, backend developers, and product teams in tech companiesWorks on website or application development, often in digital agencies or freelance projects
Employer & Industry UsageUsed in tech startups, software companies, and enterprises focusing on web applicationsCommon in digital agencies, freelance work, and small business websites

The main difference is that Junior Frontend Software Engineers typically have a more technical focus on building and maintaining complex web applications, often requiring a deeper understanding of programming concepts. Junior Web Developers usually focus on creating and maintaining websites, with a broader but less specialized skill set. Both roles often require similar foundational skills but differ in scope and complexity.

What cities in California are hiring for Junior Frontend Software Engineer jobs? Cities in California with the most Junior Frontend Software Engineer job openings:
Junior Frontend Software Engineer jobs near you

Software Engineer III, Frontend

6sense

San Francisco, CA • On-site

Other

Re-posted 12 days ago

Job description

About the Role

We're seeking a Software Engineer III - Frontend to join our Engineering team and build modern, scalable web applications. You'll collaborate with Product Managers, UX Designers, and Backend Engineers to deliver intuitive, high-impact customer experiences while leveraging AI-powered development tools.

What will you own
  • Design, develop, test, and maintain React and TypeScript applications.
  • Build reusable UI components and contribute to frontend architecture and design systems.
  • Collaborate with Product, Design, and Backend Engineering teams.
  • Optimize performance, accessibility, scalability, and responsiveness.
  • Write clean, maintainable, well-tested code.
  • Participate in architecture discussions, code reviews, and mentor junior engineers.
  • Contribute across the full stack when needed.
  • Leverage AI-powered coding assistants and agentic workflows.
  • Troubleshoot production issues and drive continuous improvements.
What we're looking for
  • Bachelor's degree in Computer Science, Engineering, or related field.
  • 4+ years of frontend software engineering experience.
  • Strong React.js, TypeScript, JavaScript, HTML5, CSS3 skills.
  • Experience with Redux, Context API, or Zustand.
  • Experience with REST APIs, testing frameworks, CI/CD, and AI-assisted development tools.
  • Strong problem-solving, debugging, and communication skills.
  • Preferred: Next.js, design systems, enterprise SaaS, Agile, full-stack experience.
Success in this role would look like
  • Deliver high-quality, scalable frontend experiences.
  • Collaborate effectively across teams.
  • Drive engineering excellence and mentor peers.
  • Improve performance, reliability, and user experience.
  • Adopt AI-powered development to accelerate delivery.

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