Principal Fabric/Network Architect

About the role

We are seeking a Principal Network Architect to own the datacenter scale-out architecture for our T100 platform. A novel accelerator only delivers value if it can be fed at scale, and this role owns the entire path that does the feeding: from the Linux host networking stack, through our electronic integrated circuit (EIC) acting as a PCIe bridge, out to third-party NICs, and back via DMA into HBM.

Responsibilities

• Own the end-to-end scale-out data path architecture spanning host network stack, EIC PCIe bridge, NIC attachment, and DMA into HBM.
• Define the transport and offload architecture, including RoCEv2 (RDMA over Converged Ethernet v2) and Ultra Ethernet Transport (UET).
• Specify peer-to-peer DMA topology and access control services (ACS) policy across the PCIe hierarchy.
• Define queue and completion semantics exposed to the runtime, in partnership with the software team.
• Drive NIC vendor selection and own the technical engagement with networking silicon partners.
• Model and evaluate collective communication performance for distributed inference workloads.
• Own the architectural case and roadmap for a future Neurophos DPU (data processing unit) and for scale-up fabric in a later phase.
• Represent Neurophos in relevant standards bodies and the data center networking community.
• Establish networking architecture practices and mentor engineers across Architecture and Software.

Qualifications

• BS/MS/PhD in Computer Science, Electrical Engineering, or a related field.
• 10+ years in datacenter networking architecture, including RDMA transports deployed at scale.
• Deep working knowledge of the Linux host networking stack: kernel networking, VFIO, DPDK or libfabric, and IOMMU/IOVA behavior.
• PCIe fluency: root complex versus endpoint roles, bridges, peer-to-peer transactions, ACS, and Gen5/Gen6 signaling and protocol.
• Familiarity with merchant NIC and switch silicon.
• Demonstrated ability to write architecture specifications that digital design and software teams can implement against.
• Excellent communication skills and comfort leading cross-functional technical discussions.

Preferred Skills

• Participation in the Ultra Ethernet Consortium (UEC) or a comparable standards body.
• DPU or SmartNIC architecture experience.
• Congestion control design and evaluation.
• Experience bringing a novel accelerator into a production datacenter network.
• Familiarity with collective communication libraries (NCCL, RCCL, or equivalent) and distributed inference serving.
• Understanding of ML inference workload characteristics and their network demands.
• Experience with hyperscaler qualification and deployment processes.

Benefits

Join a team that invests in your future and your well-being. At Neurophos, we offer:

• 100% coverage of base health plan premiums for you and your dependents, plus HSA contributions.
• Unlimited PTO. No rigid vacation banks, just a focus on delivery.
• 401(k) matching and stock option opportunities to ensure our success is your success.
• Full suite of voluntary benefits, including Dental, Vision, Life, Hospital, Critical Illness, and Accident insurance.
• Personalized Benefits. Choose the plans that fit your life and take the cash back for those that don’t.