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Senior Associate Frontend Developer Jobs in Brea, CA

Zoo

Senior Software Engineer, Frontend

Los Angeles, CA · On-site +1

$145K - $195K/yr

Able to operate autonomously and work asynchronously, while also being an effective team player About The Role As a Senior Frontend Engineer at Zoo, you'll play a crucial role in the development and ...

legence

Senior Associate, Electrical

Los Angeles, CA · On-site

$140K - $156K/yr

CMTA, formerly known as AMA Group, is seeking an experienced Electrical Senior Associate who is ... Bachelor's in Electrical Engineering required; PE highly preferred * 13+ years of design experience ...

Redwood-Trus

Senior Associate- Software Engineer

Irvine, CA · On-site

$110 - $150/hr

Senior Associate- Software Engineer *Regular Full-Time Charlotte, NC, US 6 days ago Requisition ID: 1605 Salary Range: $110,000.00 To $150,000.00 Annually Senior Software Engineer - Corporate Finance ...

D3

Frontend Engineer - New Grad

Los Angeles, CA · On-site

As a Frontend Engineer (Entry Level), you'll work closely with senior engineers to design, develop, and optimize interfaces for our registrar, marketplace, and decentralized apps (dApps). This is a ...

D3

Frontend Engineer - New Grad

Los Angeles, CA

As a Frontend Engineer (Entry Level), you'll work closely with senior engineers to design, develop, and optimize interfaces for our registrar, marketplace, and decentralized apps (dApps). This is a ...

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Senior Associate Frontend Developer information

See Brea, CA salary details

$40.4K

$137.8K

$188K

How much do senior associate frontend developer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for senior associate frontend developer in Brea, CA is $137,838.00, according to ZipRecruiter salary data. Most workers in this role earn between $119,100.00 and $156,400.00 per year, depending on experience, location, and employer.

What is a senior associate frontend developer?

Senior Associate Frontend Developers are experienced professionals responsible for designing, building, and maintaining the user-facing parts of web applications. They work with technologies like HTML, CSS, JavaScript, and modern frameworks such as React, Angular, or Vue.js. In addition to coding, they often mentor junior developers, collaborate with designers and backend teams, and help ensure that applications are responsive, accessible, and high-performing. Their role typically involves both hands-on development and contributing to technical decisions within their team.

What skills and qualifications are needed to thrive as a senior associate frontend developer?

To thrive as a Senior Associate Frontend Developer, you need advanced proficiency in HTML, CSS, JavaScript, and modern frontend frameworks like React or Angular, typically supported by a bachelor's degree in computer science or a related field. Experience with version control systems (e.g., Git), build tools (Webpack, npm), and familiarity with testing frameworks and CI/CD pipelines are commonly required. Strong problem-solving abilities, attention to detail, and effective collaboration and communication skills help you stand out in this role. These competencies are vital for delivering robust, user-friendly interfaces and ensuring smooth teamwork in fast-paced development environments.

How does a senior associate frontend developer typically collaborate with UX/UI designers and backend developers on projects?

As a Senior Associate Frontend Developer, you will regularly work alongside UX/UI designers to translate design mockups into functional, responsive interfaces. You'll also coordinate with backend developers to integrate APIs and ensure seamless data flow between the client and server. Effective communication and regular sync-ups are essential, as you'll often be responsible for bridging the gap between visual design and technical implementation, ensuring both usability and performance standards are met.

What are popular job titles related to Senior Associate Frontend Developer jobs in Brea, CA?

For Senior Associate Frontend Developer jobs in Brea, CA, the most frequently searched job titles are:

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Cities near Brea, CA with the most Senior Associate Frontend Developer job openings:

Senior Associate Frontend Developer jobs near you
Infographic showing various Senior Associate Frontend Developer job openings in Brea, CA as of August 2026, with employment types broken down into 1% As Needed, 70% Full Time, 27% Part Time, 1% Temporary, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $137,838 per year, or $66.3 per hour.

Senior Software Engineer, Frontend

Zoo

Los Angeles, CA • On-site, Remote

$145K - $195K/yr

Full-time

Re-posted 7 days ago

Key responsibilities

  • Develop and optimize the frontend of the modeling app, focusing on performance and user experience

  • Collaborate with backend teams to design and implement APIs supporting the app's code-driven design functionality

  • Enhance the app's UI/UX using Typescript, React, and XState, ensuring a powerful and user-friendly interface

Job description

About Us
Zoo is building the next generation of hardware design tools redefining how hardware products are designed, developed, and built. Our platform combines a modern, cloud-native CAD environment with AI-powered engineering workflows, helping teams design, iterate, and manufacture products faster than ever before. We are headquartered in Los Angeles, CA with both a local and remote team. We were founded and incubated by Embedded Ventures in 2021.
About You
We're looking for curious, innovative, and ambitious self-starters to join our growing team to help us bring our mission to life. We think you'll thrive on our team if you're:
  • Curious at your core, with an eagerness to learn and do things differently
  • Customer-focused, always thinking about ways to improve the user experience
  • Able to operate autonomously and work asynchronously, while also being an effective team player

About The Role
As a Senior Frontend Engineer at Zoo, you'll play a crucial role in the development and enhancement of our novel open-source CAD modeling app, Zoo Design Studio. This unique, DSL-driven application leverages traditional CAD UI for code generation/editing while streaming a 3D scene from our remote graphics engine. This is a "back of the front-end" role, where your efforts will be instrumental in creating and gluing features together from our UI that drives DSL code-mods, triggering executions with our Rust/Wasm DSL, or interfacing with our backend's WebSocket API and doing so in an extensible way. We're looking for a seasoned Engineer with substantial experience building highly performant, scalable web applications with a deep understanding of performance optimization techniques. This is an awesome opportunity to significantly impact one of our core products during this critical phase of growth for our team.
What You'll Do
  • Develop and optimize the frontend of our modeling app, focusing on performance and user experience
  • Collaborate with backend teams to design and implement robust APIs that support the app's code-driven design functionality
  • Enhance the app's UI/UX by leveraging Typescript, React, and XState, ensuring that the interface is both powerful and easy to use
  • Develop delightful CodeMirror extensions that bridge the gap between the user's code and the 3d-model
  • Implement advanced AST/code-mods, CodeMirror enhancements, and deep integration with WebAssembly (Wasm) for performance improvements
  • Utilize Xstate for state management to maintain app consistency and reliability across various user interactions
  • Apply a deep understanding of JavaScript and browser internals to improve app functionality and performance
What You'll Need
  • B.S. in Computer Science or a related field, or equivalent professional experience
  • Substantial experience in frontend software development building complex, highly performant and scalable applications
  • Strong proficiency in Typescript and React, with a portfolio or examples of complex applications built using these technologies
  • Deep knowledge of JavaScript and its internal workings and performance optimization techniques
  • Familiarity with WebAssembly (Wasm) and its use in web applications for performance enhancements
  • Understanding of browser internals across major browsers (Chrome, Firefox, Chromium, Brave, etc.) and their impact on application performance and compatibility
  • Knowledge of Xstate or similar state management libraries
Nice to Have
  • Proficiency with Rust
  • Experience with CodeMirror6
  • Experience with ASTs even if custom ESLint rules
  • Experience with WebGL or web graphics
  • A background in geometry and/or experience with design-based software

The salary range for this role is provided below. The final offer will depend on multiple factors including candidate experience, skills, expertise, and market data. Compensation may vary by geography. In addition to salary, we offer competitive equity as well as a full benefits package which may vary by geography as well.
Salary Range
$145,000-$195,000 USD
Zoo is an equal-opportunity employer committed to creating a diverse and inclusive workplace. The Zoo team is made up of incredibly talented and unique individuals from across the globe. All qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, Veteran status, age, or any other trait that unfairly targets a group of people. We encourage everyone interested in our mission to apply!

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