Cloudflare
Senior Software Engineer, Workers Runtime
$185K–$266K
In-Office +4 · Senior · Full-time · Posted Jan 31, 2025
- Location
- In-Office
Austin, TX, United States
London, United Kingdom
New York, New York, United States
San Francisco, CA, United States - Experience
- 2+ years of recent professional experience with C++ or Rust.
- Visa sponsorship
- Offers may be conditioned on authorization to receive software or technology controlled under U.S. export laws without sponsorship for an export license.
About the job
Build and operate Cloudflare’s Workers Runtime, improving performance and reliability while expanding JavaScript and WebAssembly support at the edge.
What you'll do
- Build and improve Workers Runtime features, performance, reliability, and scale.
- Expand JavaScript API and WebAssembly support, shaping features based on technical possibilities.
- Own production code and debug issues in large-scale distributed systems.
What they ask for
- 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.
Nice to have
- Experience building high-performance distributed systems in Rust; experience with cloud or serverless platforms.
- Familiarity with JS engine internals or standalone WebAssembly runtimes; deep Linux, UNIX, kernel, or networking knowledge; contributions to large open source projects.
Pay
$194,000 - $266,000 USD annual base salary (Bay Area based hires); $185,000 - $254,000 USD annual base salary (New York City, New Jersey, Washington, Washington DC, and California excluding Bay Area based hires)
Tools
C++, Rust, HTTP, JavaScript, WebAssembly, Linux, V8, SpiderMonkey
AI focus
The posting describes AI as a partner and encourages AI-native curiosity and leveraging AI to ship faster, but does not specify AI-related job duties.
Model-written summary · the original posting is authoritative