Performance Engineer, Kernel and Memory

📋 Description

• Diagnose and fix performance and scalability bottlenecks in the Linux kernel memory-management
• Land your work upstream. We expect MM changes to go to mainline first and want you to keep doing
• Build and extend low-overhead kernel instrumentation (tracepoints, BPF, perf) so we keep measuring
• Partner with kernel, networking, storage, and product engineers across the company to turn observed
• Set technical direction for how Cloudflare uses, tunes, and evolves kernel memory management as we

🎯 Requirements

• Deep expertise in the Linux kernel memory-management subsystem: the page allocator, virtual memory
• A track record of upstream Linux contribution, ideally including maintainership or sustained work
• Strong systems programming in C, with the judgement to make high-risk changes to shared
• Ability to dive deep into a complex codebase while keeping the fleet-wide picture in mind, and to
• Clear communication with engineers across many teams, since the symptoms of an MM problem usually