PCI device lead Engineer

Job Title : Linux PCI Device Lead

Experience : 8 to 10+ years

Key Responsibilities :

• Architect and Lead PCI Subsystem Development :
• Drive design, development, and maintenance of PCI and PCIe subsystems and drivers in the Linux kernel.
• Ensure seamless enumeration, configuration, power management, and hotplug support for PCI devices.
• Device Enablement and Bring-up :
• Lead platform bring-up activities involving PCI / PCIe devices (e.g., network, storage, GPU, NVMe).
• Validate and debug device-tree or ACPI configurations for PCI host bridges and endpoints.
• Kernel and Firmware Interaction :
• Collaborate with firmware / bootloader teams for correct BAR, MSI / MSI-X, and IOMMU configurations.
• Work closely with architecture teams to support secure boot and DMA protection for PCI devices.
• Performance and Power Optimisation :
• Analyse PCI bandwidth, latency, and power bottlenecks.
• Implement ASPM, LTR, and other low-power states in compliance with PCIe specs.
• Debugging and Issue Resolution :
• Use Linux tools (lspci, setpci, tracepoints, ftrace, perf, etc.) and oscilloscopes / analyzers for low-level debugging.
• Root-cause platform PCI failures and compatibility issues across hardware and kernel versions.
• Upstream and Compliance :
• Contribute patches upstream to the Linux kernel PCI subsystem.
• Ensure compliance with PCI-SIG and Linux kernel community best practices.
• Cross-Team Collaboration :
• Interface with SoC, BIOS / UEFI, board, and validation teams to ensure robust PCIe device support across platforms.

Required Expertise :

Skills Required

Virtualisation, C Programming, Gdb, Pcie, Pci, Linux Kernel, Yocto, power management