Staff Systems Engineer - Low Latency & Networking

Responsibilities

• Architect and refine low-latency infrastructure where microsecond-level performance is a primary requirement.
• Diagnose and resolve complex, cross-layer issues spanning network protocols, operating system behavior, and hardware constraints.
• Optimize end-to-end network performance, including NIC tuning, congestion control analysis, and the implementation of kernel-bypass techniques.
• Develop bespoke observability tooling and leverage eBPF, hardware performance counters, and flamegraphs to identify non-obvious bottlenecks.
• Read and interpret kernel source code or assembly when necessary to debug socket buffer interactions or memory contention.
• Collaborate on the development of production-grade systems using Rust and other low-level programming languages.

Requirements

• 10+ years of professional experience in systems programming, networking, or performance-critical infrastructure.
• Expert-level Linux knowledge, specifically regarding networking stack internals, scheduling interactions, and kernel interfaces.
• Deep Networking Proficiency: Ability to analyze packet captures and reason about protocol behavior (TCP/UDP, ICMP, etc.) under extreme load.
• High-Performance I/O: Hands-on experience with technologies such as DPDK, XDP, io_uring, or similar kernel-bypass frameworks.
• Systems Programming Mastery: Strong fundamentals in Rust, C, or C++, with a focus on writing correct, concurrent, and memory-efficient code.
• Performance Profiling: Proven track record using tools like perf, eBPF, and trace-based debugging to optimize real-world workloads.

Preferred Qualifications

• Background in High-Frequency Trading (HFT), real-time systems, or high-performance distributed networks.
• Experience with custom memory allocators or deep optimization of the memory subsystem.
• Knowledge of virtualization internals and passthrough networking (SR-IOV, vDPA).
• Familiarity with blockchain infrastructure or high-throughput transaction environments.

Pay

Annual Salary: $220,000 – $275,000 (commensurate with experience).

Benefits

• Health: 100% employer-covered health insurance premiums.
• Perks: Weekly meal stipends and fully funded team retreats and industry conferences.