20d ago
$180,000 - $440,000 USD/yr

Evaluation Infrastructure

United StatesUnited States·Palo Altolead
OtherSoftware EngineerMember Of Technical StaffSoftware Engineering
4 views0 saves0 applied

Quick Summary

Key Responsibilities

Build highly reliable, efficient, and easy to use infrastructure that runs all our evaluations at scale Collaborate closely with modeling & evaluation teams on developing new evals,

Requirements Summary

Experience in building, debugging,

Technical Tools
OtherSoftware EngineerMember Of Technical StaffSoftware Engineering

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

About the Role

~1 min read

The RL infrastructure team is looking for an engineer to help develop our evaluation infrastructure.

Responsibilities

~1 min read
  • →Build highly reliable, efficient, and easy to use infrastructure that runs all our evaluations at scale
  • →Collaborate closely with modeling & evaluation teams on developing new evals, maintaining evaluation signal quality, and building internal tooling to support training our next-generation of models
  • →Identify and resolve performance bottlenecks in all layers of the eval infrastructure stack, including inference, capacity fleet management, asynchronous eval orchestration, and more

Requirements

~1 min read
  • Experience in building, debugging, and optimizing efficiency of large-scale distributed systems
  • Willingness to dive deep and solve hard problems at all levels of the stack
  • Experience in LLM inference
  • Experience in GPU compute management, workload scheduling, and dynamic resource optimization
  • Experience in developing interfaces for comparing models and evals

What We Offer

~1 min read

$180,000 - $440,000 USD

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

Location & Eligibility

Where is the job
Palo Alto, United States
On-site at the office
Who can apply
US

About this job

Pay per year
$180,000–$440,000 a year
359% above the $67,500 median for Other jobs on Jobera (119,193 salaries).
Who can apply
United States
Posted
20 days ago
Employer
has 305 open jobs on Jobera in 7 countries.

Listing Details

Posted
September 30, 2026
First seen
September 30, 2026
Last seen
October 20, 2026

Posting Health

Days active
19
Repost count
0
Trust Level
47%
Scored at
October 20, 2026

Signal breakdown

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Evaluation Infrastructure$180,000 - $440,000 USD