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Senior Staff Applied AI Inference Engineer

$250,000–$300,000San Francisco, CAOn-siteStaff

View posting at Crusoe

About the job

This hands-on senior staff engineer owns end-to-end inference performance for large language models, optimizing serving architectures, frameworks, and GPU kernels for latency, throughput, cost, and reliability.

Summary written from the posting.

What you’ll do

  • Optimize LLM serving architectures, including prefill/decode disaggregation and request routing
  • Profile and improve performance across vLLM, SGLang, and CUDA kernels
  • Tune production deployments for latency, throughput, cost, and reliability
  • Partner with customer engineering teams to deliver monitored inference services

What you’ll bring

  • Bachelor's, Master's, or Ph.D. in computer science, engineering, mathematics, or a related field
  • Production software development experience in Python or C++
  • Experience optimizing LLMs for high-throughput, low-latency inference
  • Experience with vLLM or SGLang and kernel-level performance profiling

Technologies

vLLM · SGLang · CUDA · Python · C++ · Docker · Kubernetes

About Crusoe

Vertically integrated AI infrastructure company that sources energy, builds and manufactures AI data centers, and delivers GPU cloud and managed inference services for model builders, hyperscalers, and enterprises.

Series F · 1000–2000 people

Pay and conditions

Posted pay
$250,000–$300,000
Pay details

Compensation will be paid in the range of up to $250,000 - $300,000 + Bonus. Restricted Stock Units are included in all offers. Compensation to be determined by the applicant's knowledge, education, and abilities, as well as internal equity and alignment with market data.

Location
San Francisco, CA
Work arrangement
On-site
Employment type
Full-time

The work, as we read it

Kind of work
Builds what the customer runs

Our reading of the posting, not the employer’s words.

How this compares

The middle of this range is $275,000, above the $196,000 median for the 1,766 US FDE postings that state one. Half of those sit between $162,000 and $230,000.