Senior Software Engineer, Workers Runtime

The Senior Software Engineer will build the next generation of Cloudflare Workers, working on low‑latency, distributed runtimes that execute customer code at the edge. Responsibilities include developing runtime components, optimizing JVM and WebAssembly execution, contributing to open‑source projects, and collaborating across product, security, and networking teams. Ideal candidates have 2+ years in C++ or Rust, a deep understanding of web technologies (HTTP, TLS, JS, WASM), and experience with low‑latency, high‑performance systems. They should be able to debug complex distributed environments, contribute to open source, and thrive in a fast‑paced, iterative engineering culture. This role offers the chance to work at the cutting edge of cloud and edge computing, influencing product direction and delivering reliable, scalable features to millions of users.