Senior Software Engineer CXI Drivers & Kernel Networking

Job description

We are focused on delivering innovative solutions that accelerate our customers digital transformation, enabling them to tackle their complex, and data-intensive workloads. Combining deep expertise and the development of the world s most cutting-edge, high-performance supercomputers, is defining the next era of computing delivering valuable insight innovation. Join us and redefine what s next for you. **What youll do:** - Develop, and maintain **Linux kernel drivers** for the CXI interconnect, including: - CXI Core Driver (shared hardware abstraction and resource management) - CXI User Driver (user-space access, queue management, protection domains) - CXI Ethernet Driver (IP, RXE, sockets integration) - Lead **800G CXI driver development** : - resource partitioning - Interaction with IOMMU, PCIe, and virtualization stacks - Own kernel interfaces used by: - Lustre/LNet (kCXI, kfabric provider) - Verbs / RXE paths - User-space libraries (libcxi, libfabric providers) - Drive performance, scalability, and reliability improvements: - Low-latency paths, queueing models, retry/timeout handling - Error reporting, recovery, and fault isolation **What you need to bring:** - 10+ years of systems software experience with deep expertise in **Linux kernel development** - Strong experience with: - PCIe, DMA, interrupts, memory management - Linux networking stack (netdev, IP, sockets, RDMA/RXE) - Hands-on experience with Switch or NIC Software Stacks, especially in the low-level kernel and user space - Proven ability to debug complex kernel + hardware interactions - Excellent C programming and kernel debugging skills **Preferred Qualifications** - Experience with **HPC or AI networking** (RDMA, libfabric, MPI, storage fabrics) - Familiarity with Lustre/LNet or high-performance storage stacks - Experience working with custom NICs or ASIC-based interconnects **Additional Skills:** Cloud Architectures, Cross Domain Knowledge, Design Thinking, Development Fundamentals, DevOps, Distributed Computing, Microservices Fluency, Full Stack Development, Security-First Mindset, Solutions Design, Testing Automation, User Experience (UX) Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.