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Webassembly Engineer Jobs (NOW HIRING)

Demonstrated experience or familiarity with WebAssembly (Wasm) for client-side Rust code ... Bachelor's degree in Engineering, Computer Science, Software Engineering, or related field.

As a Software Engineer, you'll work on some of the most technically challenging and impactful parts ... You will be developing high-performance client-side systems in C++/WebAssembly, extending the ...

... Engineer at JPMorganChase within the Markets Org, you are an integral part of an agile team that ... Drives roadmap decisions on the C++/Rust â WebAssembly engine, Apache Arrow integration, custom ...

Senior Software Engineer, C++ / Rust

New York, NY · On-site +1

$134K - $176K/yr

Lead the integration and maintenance of a WebAssembly (WASM) virtual machine within the XRPL's C ... engineering stakeholders. * Uphold high standards for coding and testing as a steward of the open ...

As a Software Engineer, you'll work on some of the most technically challenging and impactful parts ... You will be developing high-performance client-side systems in C++/WebAssembly, extending the ...

... WebAssembly execution both fast and secure. JavaScriptCore is complex, with many subsystems: the ... programming in modern C++ Excellent debugging, critical thinking, and communication skills ...

About The Role As a Senior Frontend Engineer at Zoo, you'll play a crucial role in the development ... Implement advanced AST/code-mods, CodeMirror enhancements, and deep integration with WebAssembly ...

Overview We are seeking a Software Engineer in McLean, VA to develop and maintain high-performance ... Demonstrated experience or familiarity with WebAssembly (Wasm) for client-side Rust code.

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Webassembly Engineer information

What is the difference between Webassembly Engineer vs Front-End Developer?

AspectWebassembly EngineerFront-End Developer
Required credentialsBachelor's in Computer Science, knowledge of WebAssembly, C/C++, RustBachelor's in Computer Science, HTML, CSS, JavaScript
Work environmentDevelopment teams focusing on performance-critical web apps, embedded systemsWebsites, web applications, UI/UX design
Industry usageTech, gaming, finance, industries needing high-performance web features

Webassembly Engineers specialize in integrating WebAssembly into web applications for performance optimization, often working with languages like C++, Rust, and working closely with back-end teams. Front-End Developers focus on designing and implementing user interfaces using HTML, CSS, and JavaScript. While both roles work in web development, Webassembly Engineers focus on performance and low-level code, whereas Front-End Developers focus on UI/UX and client-side scripting.

More about Webassembly Engineer jobs
What cities are hiring for Webassembly Engineer jobs? Cities with the most Webassembly Engineer job openings:
What states have the most Webassembly Engineer jobs? States with the most job openings for Webassembly Engineer jobs include:
Infographic showing various Webassembly Engineer job openings in the United States as of July 2026, with employment types broken down into 95% Full Time, 2% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.
JavaScript Virtual Machine Compiler Engineer

JavaScript Virtual Machine Compiler Engineer

Apple

Cupertino, CA • On-site, Remote

Full-time

Re-posted 18 days ago


Apple rating

8.1

Company rating: 8.1 out of 10

Based on 667 frontline employees who took The Breakroom Quiz

5th of 30 rated technology retailers


Job description

In this role, you have the opportunity to push the state of the art of JavaScript and WebAssembly performance. The JavaScriptCore team at Apple is looking for system programmers with compiler (especially just-in-time) and virtual machine experience. You will be working to deliver a faster and more secure web for all Apple products by improving JavaScriptCore's already world-class JIT compilers, runtime systems, and the garbage collector. The work is challenging, and the impact is worldwide. Join us.
Description
The JavaScriptCore team in WebKit is responsible for the JavaScriptCore engine, and our mission is to make JavaScript and WebAssembly execution both fast and secure. JavaScriptCore engineers work on all aspects of the engine: the compilation pipeline, the language runtime, the garbage collector, and the API for native apps. The compilation pipeline consists of the parser, the bytecode frontend, profile-guided type profiling, and multiple optimizing compiler backend that turn JS and Wasm programs into efficient ARM and x86 machine code.
In this role, you will work across all areas of the engine, improving the performance, security, and stability of the engine, as well as compatibility with other browsers. You will also help guide the evolution of the JavaScript and WebAssembly languages via public standards. You will drive new innovations, add new optimizations, tune performance, implement language features, in addition to diagnosing and fixing existing problems.
Minimum Qualifications
BS in computer science or equivalent
Experience programming in modern C++
Excellent debugging, critical thinking, and communication skills
Experience with compilers, parsers, and interpreters
Experience with assembly-level programming
Experience with performance analysis
Experience with memory allocators and garbage collectors
Preferred Qualifications
Hands-on experience with VMs with just-in-time compilers (e.g. JavaScript engines and JVMs)
Experience with web browsers
Knowledge of JavaScript and WebAssembly

What Apple employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Apple logo

About Apple

Sourced by ZipRecruiter

Imagine what you could do here! At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish. Dynamic, intelligent people and inspiring, innovative technologies are the norm here. The people who work here have reinvented entire industries with all Apple Hardware products. The same real passion for innovation that goes into our products also applies to our practices strengthening our dedication to leave the world better than we found it.

Industry

Computer and electronic product manufacturing

Company size

10,000+ Employees

Headquarters location

Cupertino, CA, US

Year founded

1976