Member of Technical Staff - Evaluation Infrastructure

xai· Engineering
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📍 Palo Alto, CA💰 USD 180K–440K

About this role

SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

ABOUT THE ROLE:

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

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, 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

BASIC QUALIFICATIONS:

  • 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

PREFERRED SKILLS AND EXPERIENCE:

  • Experience in LLM inference
  • Experience in GPU compute management, workload scheduling, and dynamic resource optimization
  • Experience in developing interfaces for comparing models and evals

COMPENSATION AND BENEFITS:

$180,000 - $440,000 USD

Base salary is just one part of our total rewards package at SpaceXAI, 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.

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

Frequently Asked Questions

What is the salary for the Member of Technical Staff - Evaluation Infrastructure role at xai?
The listed salary for this Member of Technical Staff - Evaluation Infrastructure position at xai is USD 180K–440K. This is an full-time role.
Where is the Member of Technical Staff - Evaluation Infrastructure position at xai located?
This Member of Technical Staff - Evaluation Infrastructure role at xai is based in Palo Alto, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Member of Technical Staff - Evaluation Infrastructure at xai belong to?
This Member of Technical Staff - Evaluation Infrastructure position is part of the Engineering department at xai. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Member of Technical Staff - Evaluation Infrastructure position at xai?
Click the "Apply Now" button on this page. You will be redirected to xai's official application portal hosted on greenhouse where you can submit your application directly.
When was the Member of Technical Staff - Evaluation Infrastructure job at xai posted?
This Member of Technical Staff - Evaluation Infrastructure position at xai was posted on Sep 30, 2026. Apply as soon as possible — early applications are often reviewed first.
Member of Technical Staff - Evaluation Infrastructure
xai · 💰 USD 180K–440K
Apply for this role ↗

You'll be redirected to xai's official application page on Greenhouse.