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Wasm Jobs in California (NOW HIRING)

Zoo

Senior Software Engineer, Frontend

Los Angeles, CA · On-site +1

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 ...

Zoo

Senior Software Engineer, Frontend

Los Angeles, CA · On-site +1

$145K - $195K/yr

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 ...

Apple

JavaScriptCore Manager

Cupertino, CA · On-site

This organization designs and implements changes to deliver improved security, better performance, and new JS and WASM language features. Weʼre looking for leaders with outstanding problem solving ...

Apple

JavaScriptCore Manager

Cupertino, CA

$267K - $401K/yr

This organization designs and implements changes to deliver improved security, better performance, and new JS and WASM language features. Weʼre looking for leaders with outstanding problem solving ...

Hedra

Senior Full-Stack Engineer

San Francisco, CA · On-site

$175K - $275K/yr

Strong familiarity with frameworks / standards / concepts such as WASM, websockets, IndexedDB, promises, generators, and coroutines. * Experience building and scaling cloud-based infrastructure ...

Adobe

Firefly Foundry, Creative Architect

San Jose, CA · On-site

$236K/yr

Preferred : • API tooling, low-code connectors, and AWS or Azure deployments a plus. • Familiarity with WASM, WebGPU, or canvas rendering a bonus. Company : Adobe is a software company that ...

Adobe, Inc.

Firefly Foundry, Creative Architect

San Jose, CA · On-site

$236K/yr

Familiarity with WASM, WebGPU, or canvas rendering a bonus. Analytical and strategic problem solver with strong executive presence and the communication skills to make complex technical ideas land in ...

Intuit

Staff Software Engineer - Traffic

San Diego, CA · On-site

Familiarity with WASM or Go-based Envoy extension development. * Background in FMEA methodology, chaos engineering, or Game Day-style resiliency practices. * Experience operating within a platform ...

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Wasm information

What is a Wasm developer?

Wasm developers are professionals who specialize in working with WebAssembly (Wasm), a binary instruction format designed to run code efficiently on the web and other environments. They write, compile, and optimize code—often in languages like C, C++, or Rust—that can be executed in a web browser or other Wasm-compatible platforms. Wasm developers enable high-performance applications such as games, video editing, and data processing to run seamlessly in web environments. Their expertise bridges the gap between traditional software development and modern web technologies.

What skills and qualifications are needed to thrive as a Wasm developer?

To thrive as a WebAssembly (Wasm) Developer, you need strong programming skills in languages like C, C++, or Rust, along with experience in web development technologies such as JavaScript and HTML5. Familiarity with Wasm toolchains, browser developer tools, and frameworks like Emscripten or AssemblyScript is typically required. Excellent problem-solving abilities, attention to detail, and effective communication are valuable soft skills in this role. These skills are crucial for building performant, secure web applications that leverage Wasm's capabilities to enhance user experience and cross-platform compatibility.

What are common challenges developers face when working with WebAssembly and how can they overcome them?

Developers working with WebAssembly often encounter challenges such as debugging limited browser support, optimizing performance, and managing interoperability between Wasm modules and JavaScript. Overcoming these hurdles typically involves utilizing browser developer tools tailored for Wasm, staying updated on evolving browser support, and leveraging established libraries or frameworks that streamline JS-Wasm communication. Collaborating with cross-functional teams, such as front-end developers and DevOps, also helps ensure smooth integration and deployment of Wasm modules in production environments.

What can you do with WebAssembly (Wasm)?

A WebAssembly (Wasm) developer can create high-performance web applications by compiling code from languages like C, C++, or Rust to run efficiently in browsers. They can optimize existing software, develop cross-platform tools, and work on performance-critical features for web and server environments using tools like Emscripten and related development environments.

What are popular job titles related to Wasm jobs in California?

For Wasm jobs in California, the most frequently searched job titles are:

What job categories do people searching Wasm jobs in California look for?

The top searched job categories for Wasm jobs in California are:

What cities in California are hiring for Wasm jobs?

Cities in California with the most Wasm job openings:

Wasm jobs near you
Infographic showing various Wasm job openings in California as of August 2026, with employment types broken down into 86% Full Time, 8% Part Time, and 6% Contract. Highlights an 59% Physical, 4% Hybrid, and 37% Remote job distribution.

Senior Software Engineer, Frontend

Zoo

Los Angeles, CA • On-site, Remote

Full-time

Re-posted 6 days ago

Job description

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

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