Senior Web Security Engineer: Browser & WASM Leader

United States Digital Space LLC; United States; Hybrid; USD 120,482 - 174,029; Full time

Benefits offered by this job

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Company bonus (10%)

Hybrid working

Job summary

United States Digital Space LLC is seeking a Senior Web Security Engineer to design, build, and secure high-performance web applications in demanding environments. You’ll work at the intersection of browser security, JavaScript runtimes, and WebAssembly, protecting client-side apps against tampering and sophisticated attacks.

This hands-on role requires solving tough security problems, and you’ll mentor others while advancing secure browser architectures across Windows, macOS, Linux, and mobile

Qualifications

• 5+ years of software engineering experience.
• Experience designing highly secure, browser-based applications.
• Strong understanding of browser internals and web platform APIs.

Responsibilities

• Design secure JavaScript and WebAssembly components for production web apps.
• Protect client-side code from tampering, reverse engineering, and attacks.
• Develop anti-tamper and runtime integrity verification mechanisms.
• Build high-performance WebAssembly modules using C++, Rust, or AssemblyScript.
• Collaborate with developers, product, and red teams to embed security into development.

Skills

JavaScript ES6+

TypeScript

WebAssembly

Rust/C++

Browser internals

Secure development

Job description

United States Digital Space LLC is seeking a Senior Web Security Engineer to design, build, and secure high-performance web applications in demanding environments. You’ll work at the intersection of browser security, JavaScript runtimes, and WebAssembly, protecting client-side apps against tampering and sophisticated attacks.

This hands-on role requires solving tough security problems, and you’ll mentor others while advancing secure browser architectures across Windows, macOS, Linux, and mobile