Cloudflare
Systems Engineer, Network Protocols & Distributed Systems
$54K–$75K
Hybrid +3 · Full-time · Posted Sep 9, 2026
- Location
- Hybrid
Austin, TX, United States
Lisboa, Lisboa, Portugal
London, United Kingdom - Visa sponsorship
- An offer may be conditioned on authorization to receive technology controlled under U.S. export laws without sponsorship for an export license.
About the job
Build and operate Internet-scale systems for HTTP and TLS termination, migrate proxy infrastructure, improve protocol performance, and contribute to open-source projects and industry standards.
What you'll do
- Build and operate systems that terminate HTTP and TLS at Internet scale.
- Migrate core infrastructure from NGINX to a Rust-based proxy and improve protocol performance.
- Contribute to open source and industry standards.
What they ask for
- Solid systems programming experience in Rust, C, or similar.
- Interest in complex technical domains and learning new things.
- Care about building reliable, secure, and performant software.
Pay
€54,000 - €75,000 EUR annual salary (Portugal-based hires; base salary)
Tools
Rust, C, NGINX, HTTP, TLS, QUIC, MASQUE, ECH
AI focus
The posting describes an AI-native culture that leverages AI to ship faster, but does not specify AI-focused job duties.
Model-written summary · the original posting is authoritative