Cornelis Networks · 10 hours ago
Network Linux Kernel Engineer
United States
Full-time
Remote
Mid, Senior LevelCornelis Networks delivers high-performance scale-out networking solutions for AI and HPC datacenters. They are hiring a Network Linux Kernel Engineer to design, develop, and optimize the software stack for their AI networking fabric, collaborating with industry experts to advance high-performance networking solutions.
Artificial Intelligence (AI)Information TechnologySoftware
Responsibilities
Design and develop high-performance kernel drivers and user-space libraries for our networking hardware
Build and optimize networking protocols at L2 (Ethernet), L3 (IP), and L4 (TCP/UDP) layers, tailored for AI/ML workloads
Leverage DPDK (Data Plane Development Kit) to create exceptionally fast packet processing pipelines that bypass the kernel for maximum throughput and minimal latency
Conduct deep-dive performance analysis and software optimization across the entire stack, identifying and eliminating bottlenecks
Collaborate with the hardware team to influence ASIC design and ensure software/hardware co-design principles are met
Develop robust testing, validation, and debugging tools for our networking stack
Contribute to a culture of technical excellence, continuous improvement, and collaborative problem-solving
Qualification
Required
Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related field
Proven experience in low-level systems programming with C/C++
Strong understanding of Linux kernel driver development and internal architecture
Hands-on experience with DPDK or similar user-space networking frameworks (e.g., VPP, XDP)
Deep knowledge of networking fundamentals and L2, L3, and L4 protocols
Demonstrated experience in software optimization, profiling, and performance tuning
A self-motivated and proactive mindset with a strong sense of ownership and the ability to work effectively in a dynamic, fast-paced startup culture
Excellent teamwork and communication skills
Preferred
Experience working with Ethernet/Switch ASICs or network processor silicon (e.g., Broadcom, Marvell, NVIDIA, Intel)
Familiarity with RoCE (RDMA over Converged Ethernet) or other RDMA protocols
Experience in developing software for high-performance network interface cards (NICs) or SmartNICs
Understanding of the unique networking requirements of distributed AI/ML training workloads (e.g., NCCL, MPI)
Benefits
Medical, dental, and vision coverage
Disability and life insurance
Dependent care flexible spending account
Accidental injury insurance
Pet insurance
Generous paid holidays
401(k) with company match
Open Time Off (OTO) for regular full-time exempt employees
Sick time
Bonding leave
Pregnancy disability leave
Company
Cornelis Networks
Cornelis Networks develops purpose-built fabrics for scientific, commercial, and government organizations.
Founded in 2019
51-200 employees
H1B Sponsorship
Cornelis Networks has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (6)
2024 (2)
2023 (1)
2022 (2)
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
$93.3MKey Investors
IAG Capital PartnersDowning Ventures
2024-03-12Series B· $25M
2023-08-24Series Unknown· $19.3M
2022-11-14Series B· $29M
Leadership Team
Lisa Spelman
CEO Cornelis Networks
Philip Murphy
Co-Founder, President, and Chief Operating Officer
Recent News
Inside HPC & AI News | High-Performance Computing & Artificial Intelligence
2025-12-10
Inside HPC & AI News | High-Performance Computing & Artificial Intelligence
2025-11-26
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