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Sr Frontend Developer Jobs in California (NOW HIRING)

Finix

Senior Frontend Engineer

San Francisco, CA · On-site

$160K - $235K/yr

... Senior Frontend Engineer on our Frontend Engineering Team, you'll architect and build the core payment experiences that power thousands of businesses. You'll develop our comprehensive payments ...

Finix

Senior Frontend Engineer

San Francisco, CA · On-site

$160K - $235K/yr

... Senior Frontend Engineer on our Frontend Engineering Team, you'll architect and build the core payment experiences that power thousands of businesses. You'll develop our comprehensive payments ...

Finix

Senior Frontend Engineer

San Francisco, CA · On-site

$160K - $235K/yr

... Senior Frontend Engineer on our Frontend Engineering Team, you'll architect and build the core payment experiences that power thousands of businesses. You'll develop our comprehensive payments ...

The Trade Desk

Senior Front End Engineer

Ventura, CA · On-site +1

$174K - $249K/yr

Senior Front-End Engineer Location: 42 N. Chestnut St., Ventura, CA 93001 *Telecommuting permitted ... Build, maintain, and improve CI/CD pipelines and deployment workflows using DevOps tools such as ...

Boxtro Llp 123

Sr. Frontend Engineer

San Francisco, CA · On-site

... Senior Frontend Engineer to join its engineering ranks. Our product philosophy is "great design ... Koding is a developer-focused startup based in San Francisco's SOMA district. Our core product is ...

veear projects

Senior Front End

San Jose, CA · On-site

$134K - $177K/yr

Company Description Direct Client Job Title: - Senior Software Engineer, Front End Location: REDWOOD CITY, CA Duration: Direct - Hire Direct Client Hiring Responsibilities : Minimal Qualifications ...

veear projects

Senior Front End

San Jose, CA · On-site

$134K - $177K/yr

Senior Software Engineer, Front End Location: REDWOOD CITY, CA Duration: Direct - Hire Direct Client Hiring Responsibilities : Minimal Qualifications • Deep knowledge of vanilla JavaScript and CSS ...

De Circle

Legend - Senior Frontend Engineer

San Francisco, CA · On-site

$144K - $198K/yr

As a Senior Frontend Engineer at Legend Labs Inc. you'll help realize the vision by delivering high-end user experiences that scale across all our products. You'll also help shape the direction ...

Siteline

Senior Frontend Engineer

San Francisco, CA

$144K - $198K/yr

This is a frontend-heavy role that demands full-stack fluency and a product mindset. You won't just ... Building shared libraries or developer tooling * Creativity - You like to express yourself ...

Mochi Health

Senior Front-End Engineer

San Francisco, CA · On-site

$144K - $198K/yr

We are looking for a Senior Frontend Engineer to own the interfaces that our patients and medical providers rely on every single day. Mochi has already helped patients lose over 5 million pounds ...

MrBeast

Senior Frontend Engineer

San Mateo, CA · On-site

$139K - $191K/yr

Senior Frontend Engineer Primary: Bay Area (San Francisco / Peninsula) | Secondary: NYC The Opportunity We're doing an AI-first engineering rebuild for a company that already has an audience of 100M ...

Socure

Senior Frontend Engineer

San Francisco, CA · On-site

$180K - $210K/yr

As a Senior Frontend Engineer, you will be instrumental in building intuitive, high-performance ... developer experience. * Partner with backend and infrastructure engineers to define efficient APIs ...

INSPYR Solutions

Frontend Developer

Northridge, CA · On-site

$111K - $129K/yr

Position Summary We are seeking a Senior Frontend Engineer to develop and maintain the company Website, a sophisticated React-based web application that provides network operations teams with ...

Mochi Health

Senior Front-End Engineer

San Francisco, CA · On-site

$144K - $198K/yr

We are looking for a Senior Frontend Engineer to own the interfaces that our patients and medical providers rely on every single day. Mochi has already helped patients lose over 5 million pounds ...

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Showing results 41-60

All JobsSr Frontend Developer JobsSr Frontend Developer Jobs in California

Sr Frontend Developer information

What is the difference between Sr Frontend Developer vs Frontend Developer?

AspectSr Frontend DeveloperFrontend Developer
Required ExperienceTypically 5+ years, leadership skills1-3 years, entry to mid-level
ResponsibilitiesAdvanced coding, mentoring, project leadershipImplementing UI features, bug fixes
Skills & CertificationsExpertise in JavaScript, frameworks, leadershipHTML, CSS, JavaScript basics
Work EnvironmentSenior roles in teams, project planningDevelopment teams, collaborative projects

The main difference between a Sr Frontend Developer and a Frontend Developer lies in experience, responsibilities, and leadership. Senior developers handle complex tasks, mentor others, and lead projects, while frontend developers focus on implementing features and fixing bugs. Both roles require strong JavaScript, HTML, and CSS skills, but senior roles demand more experience and strategic input.

What is a Sr Frontend Developer?

Sr Frontend Developers are experienced software engineers who specialize in building and optimizing the user interfaces of web applications. They are responsible for translating design mockups into interactive, responsive, and accessible web pages using technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue). In addition to coding, Sr Frontend Developers often lead technical decisions, mentor junior developers, and collaborate closely with designers and backend engineers to deliver high-quality user experiences. Their expertise ensures that web applications are visually appealing, performant, and user-friendly.

What are some common challenges faced by Sr Frontend Developers when working on cross-functional teams?

Sr Frontend Developers often collaborate closely with backend engineers, UX/UI designers, and product managers. A common challenge in these environments is ensuring clear communication of technical requirements and design expectations to avoid misunderstandings that can lead to rework. Balancing user experience with technical feasibility is another frequent hurdle, especially when negotiating priorities between design vision and performance constraints. Effective Sr Frontend Developers proactively bridge gaps through strong documentation, regular alignment meetings, and by advocating for best practices in both development and design.

What are the key skills and qualifications needed to thrive as a Sr Frontend Developer?

To thrive as a Sr Frontend Developer, you need deep expertise in HTML, CSS, JavaScript, and modern front-end frameworks like React or Angular, usually backed by a degree in computer science or equivalent experience. Advanced knowledge of tools such as Git, Webpack, RESTful APIs, and proficiency with testing frameworks is typically required. Outstanding problem-solving abilities, strong collaboration, and effective communication set top performers apart in this role. These skills ensure the delivery of high-quality, user-friendly interfaces and seamless teamwork in fast-paced development environments.
What are popular job titles related to Sr Frontend Developer jobs in California? For Sr Frontend Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Sr Frontend Developer jobs in California look for? The top searched job categories for Sr Frontend Developer jobs in California are:
What cities in California are hiring for Sr Frontend Developer jobs? Cities in California with the most Sr Frontend Developer job openings:
Sr Frontend Developer jobs near you
Infographic showing various Sr Frontend Developer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 14% Part Time, 2% Temporary, and 4% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Senior Front-End Engineer - Onsite Interview is Required

System One

Washington, DC • On-site

$138K - $190K/yr

Other

Posted 12 days ago

Job description

MUST BE LOCAL TO ONE OF THE LOCATIONS BELOW FOR AN ONSITE, PANEL WITH WHITE BOARD INTERVIEW
Job Title: Senior Front-End Engineer 
Location: Hybrid reporting to Vienna or Winchester, VA, Pensacola, FL or San Diego, CA
Hours: Monday – Friday, 8:00 AM – 4:30 PM
Pay Rate: Open to Both C2C and W2 options 
Position Type: Multiyear Contract
Overview
We are seeking a Senior Front-End Engineer with deep expertise in Angular 17+, modern web technologies, and enterprise-scale UI development. The ideal candidate combines strong technical expertise with a passion for user experience, accessibility, scalability, and engineering excellence. This individual will partner closely with Product, UX, Architecture, and Engineering teams to deliver consistent, responsive, and maintainable user experiences across web applications while helping establish front-end standards and best practices.
Responsibilities
Design, develop, and maintain responsive, accessible, and performant web applications using Angular and modern web technologies.
Build reusable UI components, libraries, and frameworks that promote consistency and scalability across Digital platforms.
Partner with UX designers, architects, and application teams to translate designs into high-quality user experiences.
Establish and maintain enterprise design system components, patterns, and styling standards.
Drive front-end architecture decisions and provide technical leadership on complex initiatives.
Conduct code reviews and promote best practices for maintainability, performance, accessibility, and security.
Collaborate with backend and platform engineering teams to integrate REST APIs and shared services.
Build and maintain CI/CD processes and automation using Azure DevOps.
Identify and resolve performance bottlenecks, accessibility issues, and technical debt.
Mentor and provide guidance to other front-end engineers.
Participate in production support, troubleshooting, root cause analysis, and operational readiness activities.
Leverage AI-assisted development tools to improve productivity, code quality, testing, and development efficiency.
Help define and enforce front-end development standards, governance, and engineering best practices.
 
Required Skills & Experience
Expert-level experience developing applications using Angular 17+.
Strong proficiency with TypeScript, JavaScript, HTML5, CSS3, and SCSS.
Experience developing large-scale Single Page Applications (SPAs).
Experience building and maintaining reusable component libraries and design systems.
Experience working with enterprise-scale codebases and shared styling frameworks.
Strong understanding of responsive web design and cross-browser compatibility.
Experience implementing accessible solutions that meet WCAG accessibility standards.
Experience working with REST APIs and integrating frontend applications with backend services.
Experience with Git-based source control, pull requests, and branching strategies.
Experience with Azure DevOps, including Repos, Pipelines, and CI/CD practices.
Experience writing unit, integration, and component tests using frameworks such as Jest, Karma, or similar tools.
Strong understanding of software architecture principles, design patterns, and SOLID principles.
Experience working within Agile delivery teams.
Familiarity with AI-powered development tools (e.g., GitHub Copilot, AI-assisted code generation, testing, and debugging).
 
Preferred Qualifications
Experience with NX Monorepo architecture and workspace management.
Experience with Storybook or similar component documentation tools.
Experience with Bootstrap, ng-Bootstrap, or similar UI frameworks.
Experience integrating third-party components into enterprise design systems.
Knowledge of frontend performance optimization techniques and observability tools.
Experience supporting digital banking or financial services applications.
Experience contributing to platform modernization initiatives.
 
Technical Stack
Angular 17+
TypeScript
JavaScript
HTML5
CSS3 / SCSS
Azure DevOps
Git
REST APIs
NX Workspace
Storybook
Bootstrap / ng-Bootstrap
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