Distributed Systems Engineer

About the company

• Cloudflare's Engineering Team builds and runs software powering millions of Internet properties.
• The Content Delivery group builds and optimizes one of the world's largest CDNs.

Responsibilities

• Design, build, and operate the high-performance cache and proxy data plane at Cloudflare's edge.
• Contribute to Pingora, improving asynchronous I/O, connection handling, memory and disk efficiency, and tail latency.
• Improve cache correctness and performance through object placement, retention, admission and eviction policies.
• Build globally distributed purge and Tiered Cache systems.
• Deliver shared platform capabilities and customer-facing APIs for cache keys, TTLs, and purge behavior.
• Own features end to end: technical designs, implementation, tests, observability, staged rollouts, and production operations.
• Participate in on-call rotation, lead incident response and post-mortems.

Requirements

• Minimum 4 years of professional experience building and operating production software systems.
• Strong proficiency in Rust, Go, C, or C++, with willingness to work in Rust.
• Strong understanding of HTTP semantics and transport protocols such as TCP, TLS, and QUIC.
• Experience designing secure, resilient, high-performance distributed systems.
• Experience with Linux systems, networking, concurrency, and performance analysis.
• Track record of production ownership including monitoring, debugging, and incident response.

Conditions

• Hybrid format. Available locations: Atlanta, Austin, Champaign, New York, San Francisco, Seattle, Washington DC.