High-Performance Networking Expert

16 hours ago


Bengaluru, Karnataka, India Ideaon Full time

Ideaon seeks an accomplished High-Performance Networking Expert to join our team. Estimated salary: $140,000/year.

Job Description:

Key Responsibilities:
  • Driver Development:
    • Design and implement high-performance L2 NIC drivers for Linux, ensuring compatibility with the latest kernel versions and distributions.
    • Develop drivers that meet performance, stability, and scalability requirements.
    • Maintain compliance with standards like IEEE 802.3 and other Ethernet-related specifications.
  • Performance Optimization:
    • Optimize NIC drivers for low-latency, high-throughput networking applications.
    • Implement advanced features such as interrupt moderation, Receive Side Scaling (RSS), Generic Receive Offload (GRO), and TCP Segmentation Offload (TSO).
    • Testing and Debugging:
    • Write and maintain test cases for NIC drivers, including stress tests and regression tests.
    • Debug kernel and user-space issues related to the NIC driver using tools like gdb, ftrace, and perf.
Qualifications:
  • Technical Skills:
    • Strong experience in Linux kernel programming, especially in the area of network drivers.
    • Deep understanding of Layer 2 networking concepts, including Ethernet, VLAN tagging (802.1Q), and link aggregation (802.3ad).
    • Proficiency in C programming and familiarity with debugging tools like kgdb, valgrind, and Wireshark.
    • Knowledge of DMA, PCI/PCIe, and memory-mapped I/O (MMIO) interactions between NICs and the system.
    • Experience with Linux networking subsystems (e.g., ethtool, netdev, and skb structures).
  • Optional but Preferred Skills:
    • Experience with DPDK, eBPF, or other high-performance packet processing frameworks.
    • Knowledge of SR-IOV, RDMA, or hardware offloading features.
    • Hands-on experience with NIC driver development for Windows (e.g., NDIS drivers).


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