Senior Edge Systems Engineer (Rust/Go)

Cloudflare; Denver (CO); On-site; USD 168,000 - 231,000; Full time

Benefits offered by this job

Equity

Job summary

Cloudflare seeks to strengthen its Cache and Proxy data plane at the edge, designing, implementing, testing, rolling out, and operating high‑performance services across Cloudflare's global network that power customer content.

This role emphasizes latency, correctness, and reliability, with ownership from design to production, on-call rotation, incident response, and cross‑team collaboration with product and engineering teams.

Qualifications

• 4+ years building production software systems.
• Strong proficiency in Rust, Go, C, or C++ with willingness to work in Rust.
• Strong understanding of HTTP, TCP, TLS, and QUIC.
• Experience designing secure, resilient distributed systems.
• Experience with Linux, networking, concurrency, and performance analysis.
• Track record of production ownership including monitoring, debugging, on-call, incident response, and reliability improvements.
• Ability to use metrics, logs, traces, profiling, and experiments to understand production behavior.

Responsibilities

• Design, build, and operate the high-performance cache and proxy data plane at Cloudflare's edge.
• Improve asynchronous I/O, connection handling, memory and tail latency in Pingora-based services.
• Enhance cache correctness and performance through eviction, placement, and range-request strategies.
• Develop global purge and Tiered Cache systems to reduce origin load.
• Deliver APIs for cache keys, TTLs, and purge behavior with Workers integration.
• Own features end to end from design through testing, rollout, and production operation.
• Participate in on-call rotation and lead incident response and post-mortems.

Skills

Backend systems

Rust/Go/C/C++

HTTP & TCP/QUIC

Distributed systems

Linux networking

On-call ownership

Observability

Tools

Kubernetes

Kafka

PostgreSQL

ClickHouse

Job description

Cloudflare seeks to strengthen its Cache and Proxy data plane at the edge, designing, implementing, testing, rolling out, and operating high‑performance services across Cloudflare's global network that power customer content.

This role emphasizes latency, correctness, and reliability, with ownership from design to production, on-call rotation, incident response, and cross‑team collaboration with product and engineering teams.