Edge Runtime Engineer (Rust/C++)

Cloudflare; San Francisco (CA); On-site; USD 194,000 - 266,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Savings Plan

Employee Stock Participation Plan

Job summary

Cloudflare’s Emerging Technologies & Incubation team develops edge products, focusing on the Workers Runtime. You’ll contribute to performance improvements, extend JavaScript and WebAssembly support, and ensure scalable operation of a large distributed runtime.

Join a fast-paced environment where you own code in production, debug complex issues, and help shape features with a practical, execution-focused mindset. This role is based in Bay Area with opportunities at multiple locations.

Qualifications

• 2+ years of recent professional experience with C++ or Rust.
• Strong computer science fundamentals, including data structures, algorithms, and software design.
• Operational mindset and experience owning production systems.
• Deep understanding of the web, including HTTP, JavaScript, and WebAssembly.
• Experience debugging and optimizing large-scale Linux-based distributed systems.

Responsibilities

• Build features and improvements for the Workers Runtime.
• Improve runtime performance, reliability, and scale.
• Expand JavaScript API and WebAssembly support.
• Help shape features based on what is technically possible.
• Own code in production and debug issues in a large-scale distributed system.
• Work in a fast-paced, iterative environment that balances product goals with technical execution.

Skills

C++

Rust

Distributed systems

HTTP/Web stack

Linux

Tools

V8

SpiderMonkey

JavaScriptCore

Wasmtime

Wasmer

Job description

Cloudflare’s Emerging Technologies & Incubation team develops edge products, focusing on the Workers Runtime. You’ll contribute to performance improvements, extend JavaScript and WebAssembly support, and ensure scalable operation of a large distributed runtime.

Join a fast-paced environment where you own code in production, debug complex issues, and help shape features with a practical, execution-focused mindset. This role is based in Bay Area with opportunities at multiple locations.