Linux Kernel & Device Drivers - Software Engineer

Description:Job Title: Senior Software Engineer – Linux Kernel & Device DriversLocation: San Jose, CA - OnsiteExperience: 5 to 15 years (depending on grade)ContractJob OverviewAs a Senior Engineer in the Systems Software team, you will drive the software-hardware co-design for Client’s AI and data center solutions. This role requires a visionary approach to Linux Kernel Memory Management, specifically focused on heterogeneous memory, virtualization, and high-bandwidth interconnects for our next-generation SoC and SSD platforms.Key ResponsibilitiesMemory Management R&D: Architect and optimize Linux kernel memory management for heterogeneous systems, including UVM (Unified Virtual Memory), memory tiering, and CXL-based memory expansion.Kernel & Driver Design: Lead the design of Linux device drivers for high-performance interfaces such as PCIe Gen5/6, NVMe, and proprietary AI accelerators.Virtualization & Hypervisors: Develop and tune KVM and QEMU support for IOMMU, interrupt virtualization, and hardware-assisted memory management.SoC Bring-up & Architecture: Partner with hardware architects to define registers and memory maps for upcoming ARMv9 and RISC-V silicon.System-Level Debugging: Resolve critical system bottlenecks and memory corruption issues using advanced tools like Lauterbach TRACE32, hardware emulators (Palladium/Zebu), and kernel profilers. Technical Skills & QualificationsEducation: MS in Computer Science, Computer Engineering, or a related field.Kernel Deep-Dive: Expert knowledge of the Linux MM subsystem (paging, swapping, HugePages, page cache, and LRU eviction policies).Hardware Interface Mastery: Deep understanding of PCIe/CXL protocol stacks, cache coherency (AMBA CHI/ACE), and DMA engines.Low-Level Programming: Expert proficiency in C and Assembly (ARM/x86); experience with Python for automation and performance modeling.Security & Reliability: Familiarity with hardware security features like TrustZone, ARM CCA, and memory protection units.Preferred ExperienceSignificant contributions to the mainline Linux Kernel (specifically in the mm/ or drivers/pci/ directories).Experience with Cloud and Data Center workloads and understanding their impact on kernel scheduling and memory latency.Knowledge of Machine Learning frameworks and how they interact with kernel-level memory allocators.