Linux Device Driver Engineer – NIC / RDMA / PCIe

Job Description: Linux Device Driver Engineer – NIC / RDMA / PCIe

Position Overview:

We are seeking a highly skilled L2 (Layer 2) NIC Driver Developer with expertise in Linux

kernel programming to join our team. The ideal candidate will design, develop, optimize, and

maintain high-performance network interface card (NIC) drivers at Layer 2 for Linux-based

systems. Experience with Windows NIC driver development is a plus. You will work closely

with hardware and software teams to ensure seamless integration, performance optimization,

and robust functionality.

What You’ll Bring

• 5+ years of Linux kernel or driver development experience (preferably network or RDMA subsystems).
• Strong in C programming , concurrency, and debugging at the kernel level.
• Experience with rdma-core , DPDK , or low-latency networking stacks .
• Familiarity with SR-IOV , VFIO , and virtio .
• Passion for performance tuning and squeezing out every nanosecond.
• Solid understanding of:

NIC architecture — Tx/Rx rings, CQEs, doorbells, DMA engines.

RDMA fundamentals — QPs, PDs, MRs, WQEs, CQ handling.

PCIe, MMIO, and DMA interactions .