D Matrix

Senior Staff Inference Performance Engineer

Who can apply: US-based role. The employer has not said which states are eligible — confirm before applying.
Location as listed by the employer: “Santa Clara; Remote”
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About this role

D Matrix is hiring for a Senior Staff Inference Performance Engineer role (full-time). See the official posting for full details.

Requirements

  • Experience with LLM serving frameworks such as vLLM, SGLang, or TensorRT-LLM.
  • Hands-on experience building or tuning speculative decoding, disaggregated serving, or heterogeneous serving architectures.
  • Experience tuning KV-cache management, request and batch scheduling, or weight prefetch and residency in an LLM serving system.
  • GPU programming and profiling experience (such as CUDA, Nsight, NCCL), valued as transferable background.
  • Experience with pre-production or bring-up hardware, or in organizations where root causes routinely cross team boundaries.
  • Rust experience.
  • Startup experience or comfort in environments where priorities shift quickly.

Summarized from the employer's posting — check the full posting for every requirement.