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Staff Software Engineer, Networking

Crusoe - San Francisco, CA, United States - In-office - posted 2026-08-31

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Salary: USD 215,000 - 260,000 / annual

Crusoe is a vertically integrated AI infrastructure company building the future of energy-efficient AI compute. The company owns and operates each layer of the stack—from electrons to tokens—to power the world's most ambitious AI workloads, with an energy-first approach that makes AI infrastructure better for the world. You will lead the development and execution of Crusoe Cloud's Software Defined Networking strategy, playing a pivotal role in driving innovation and performance improvements within network infrastructure. This is a Staff-level individual contributor role with significant technical leadership scope. Key responsibilities include: - Develop and execute the roadmap for Software Defined Networking strategy - Lead the engineering team through all phases of the software development lifecycle, including architecture decisions, design processes, design reviews, code reviews, and implementation - Collaborate with the network infrastructure organization to develop and deploy industry-leading networking solutions - Lead the design, development, and support of Linux Kernel and driver components, focusing on system architecture and optimization - Drive adoption and integration of kernel bypass technologies such as XDP/EBPF, AF_XDP, and DPDK - Work with network accelerators such as Mellanox/NVIDIA SmartNICs (ConnectX-6/7), DPU BlueField-3, or Intel IPU - Collaborate across functional teams to ensure successful project delivery and operational excellence You will be part of a high-performing team solving the AI compute power bottleneck through innovative infrastructure solutions. REQUIREMENTS: - 8+ years of proven experience building and operating high-performance networking systems in production environments - Strong proficiency in system programming languages: C, C++, and/or Golang - Deep expertise in Linux Systems Internals, including kernel architecture, memory management, and device drivers - In-depth knowledge of network programming principles and packet processing pipelines - Hands-on experience with kernel bypass technologies: XDP/EBPF, AF_XDP, and DPDK - Proven understanding of TCP/IP and networking accelerators (Mellanox/Nvidia SmartNICs, DPU Bluefield3, Intel IPU) - Familiarity with SR-IOV, vDPA, and scalable functions - Strong background in kernel or embedded development, with focus on Linux kernel - Experience with Open vSwitch, Openflow, and Open Virtual Networking technologies - Proven ability to communicate and collaborate with technical and non-technical stakeholders - Demonstrated commitment to professional software engineering best practices: coding standards, code reviews, source control, testing, operations BONUS: - Advanced degree in Computer Science, Engineering, or related field - Proven leadership experience in a technical role - Strong analytical and problem-solving skills - Experience with cloud networking platforms (AWS, Azure, GCP) and virtualization technologies (VMware, KVM) - Track record of open-source contributions (Open vSwitch/OVS, Open Virtual Networking/OVN, Multus, Cilium)

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