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Host Systems Software Engineer

San Francisco💼 Full-time🗓 2026-06-03 → 2026-07-31

Core

Design, implement, and debug host-side systems software for custom AI infrastructure, including Linux kernel drivers, high-throughput I/O paths, and system-scale networking.

Role type

Senior IC systems software engineer (host stack)

Builds

Production-ready host software stack for custom next-generation AI systems

Domain

AI infrastructure, custom silicon, high-performance computing

Deliverable

production ML models | infrastructure

Required skills

C, C++, Python, Linux kernel drivers, RDMA, PCIe, DMA, NIC software, accelerator software, high-performance I/O, system debugging, platform bring-up

Preferred skills

Rust, RoCE, ibverbs, kernel networking, congestion control (ECN, DCQCN), SR-IOV, IOMMU, dma-buf, profiling, optimization

Technologies

Linux, RDMA, PCIe, DMA, NICs, accelerators, Rust, Python

Responsibilities

Design and implement host-side systems software; optimize high-throughput, low-latency communication paths; develop software for PCIe, DMA, and device interaction; bring up new hardware platforms; build tooling for integration and performance characterization; collaborate on interface definition and integration.

Seniority

Senior, hands-on IC

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