2 days ago
Base Salary
$168k - $245k/yr
Responsibilities
- Debug kernel-level failures, boot-time anomalies, PCIe link issues, driver behavior, and network latency.
- Diagnose and tune RDMA/RoCEv2, NCCL, SmartNIC/DPU behavior, NIC queues, congestion, throughput, and collective communications.
- Read and correlate unified hardware traces across host CPUs, PCIe switches, SmartNICs, and GPU compute streams.
- Capture and analyze Wireshark packets, system logs, NVIDIA support logs, traces, profiles, and observability data.
- Partner with hardware and software teams to identify and eliminate end-to-end performance bottlenecks.
Requirements
- Bachelor’s degree plus 7 years of related experience, or Master’s degree plus 4 years, or PhD plus 1 year, or equivalent related work experience.
- At least 4 years of experience with Linux kernel, networking, GPU, and distributed-systems debugging.
- Experience writing C, C++, and Python code and working with user-mode and kernel-mode drivers.
- Experience with the Linux network stack, RDMA/RoCEv2, NCCL, PCIe, and performance profiling.
- Experience reasoning from packet captures, traces, counters, logs, and reproducible benchmarks.
- Preferred: SmartNIC/DPU optimization and DOCA SDK experience.
- Preferred: Cisco switching, AI cluster network fabrics, multi-plane/ToR designs, and high-speed Ethernet or InfiniBand environments.
- Preferred: familiarity with NVIDIA diagnostic tooling, Nsight/profiling tools, kernel tracing, and observability platforms.
Benefits
- Medical, dental, and vision insurance; 401(k) with Cisco matching contribution; paid parental leave; disability coverage; and basic life insurance.
- Potential eligibility for Cisco restricted stock unit grants and annual bonuses for non-sales roles.
- Paid holidays, floating holiday, birthday leave, year-end shutdown, wellness days, vacation or flexible time off, sick time, family emergency leave, and optional paid volunteer days.
- The posting includes U.S. and/or Canada hiring locations and state-specific salary ranges.
About Cisco
Cisco designs and sells networking, security, and collaboration platforms for enterprises, service providers, and governments, spanning routers and switches, Wi‑Fi, firewalls, zero‑trust, observability, and cloud-managed IT (Meraki) plus Webex. Its business model mixes hardware, software subscriptions, and support/consulting services. Founded in 1984 and headquartered in San Jose, California, Cisco is a public company traded on Nasdaq and serves customers across data centers, campuses, and service provider networks.