Systems Software Engineer, PCIe Device Driver

Job Title

Systems Software Engineer, PCIe Device Driver

Role Summary

Develop and maintain Linux PCIe device drivers, kernel modules, and user-space libraries to enable high-performance data paths for FuriosaAI's inference accelerator platform. Work on end-to-end PCIe I/O pipelines in close collaboration with hardware and firmware teams.

The team focuses on low-latency, high-throughput I/O, efficient memory management, and robust kernel-level integration for AI accelerator systems.

Experience Level

Mid-level. Specific years of experience are not specified.

Responsibilities

Primary responsibilities include development, optimization, and integration of PCIe I/O subsystems at the kernel and user levels.

• Develop and maintain Linux PCIe device drivers and kernel modules.
• Optimize PCIe subsystem components: DMA, IOMMU, interrupts, and BAR mapping.
• Design and implement user-space libraries and APIs for high-performance data paths.
• Collaborate with hardware and firmware teams to build and validate end-to-end PCIe I/O pipelines.
• Design efficient memory management and zero-copy data transfer mechanisms.
• Use kernel debugging and profiling tools to diagnose and resolve performance and stability issues.

Requirements

Must-have technical skills are listed first; preferred skills are noted separately.

• Must-have: Strong understanding of Linux kernel internals and memory management (including DMA and IOMMU).
• Must-have: Experience developing kernel modules in C.
• Must-have: Knowledge of PCIe protocol and PCIe subsystem architecture.
• Must-have: Experience with kernel debugging and profiling tools (gdb, ftrace, perf, etc.).
• Nice-to-have: Experience with device drivers for HPC, AI accelerators, or high-speed networking.
• Nice-to-have: Background with RDMA, DPDK, SPDK or other high-performance I/O frameworks.
• Nice-to-have: Familiarity with NUMA, huge pages, and pinned memory.
• Nice-to-have: Upstream contributions or open-source maintainer experience.

Education Requirements

Not specified.

About the Company

Company: FuriosaAI

Headquarters: Seoul, South Korea

FuriosaAI develops high-performance, energy-efficient AI inference hardware and software. Founded in 2017 by semiconductor and AI engineers, the company builds AI-native compute platforms to reduce AI energy and operational costs and operates globally with offices in Korea, Silicon Valley, and an R&D lab in Lisbon.