Real job — pulled straight from xAI’s careers page · Verified July 18, 2026 · No reposts.
Job description
xAI is hiring a Member of Technical Staff, RL Training Framework — a full-time, based in Palo Alto, CA role ($180k–$440k). Apply directly on xAI's careers page below.
Member of Technical Staff - RL Training Framework
Location: Palo Alto, California
Department: Model
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 RL training framework.
RESPONSIBILITIES:
- Design and implement the systems backing all RL workloads at SpaceXAI, from small scale ablations to production training runs.
- Profile, debug, and optimize end-to-end training performance
- Improve scalability and observability of the RL stack
BASIC QUALIFICATIONS:
- Experience building, debugging, and optimizing efficiency of large-scale distributed systems
- Comfortable diving into unfamiliar areas and solving problems at all levels of the stack
- Proficiency in Python, Jax, Rust, and/or C++
PREFERRED SKILLS AND EXPERIENCE:
- Experience with large scale LLM training infrastructure
- Strong knowledge of reinforcement learning techniques
- Experience with RL numerics
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.
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Frequently asked questions
What is the salary for Member of Technical Staff, RL Training Framework at xAI?
The estimated salary range for Member of Technical Staff, RL Training Framework at xAI is $180,000 - $440,000 USD per year.
What skills are required for Member of Technical Staff, RL Training Framework at xAI?
The required skills for Member of Technical Staff, RL Training Framework at xAI include: Python, Rust, C++, LLM.
What is the seniority level for Member of Technical Staff, RL Training Framework at xAI?
Member of Technical Staff, RL Training Framework at xAI is a Staff level position.
How do I apply for Member of Technical Staff, RL Training Framework at xAI?
You can view the full description and apply for Member of Technical Staff, RL Training Framework at xAI on EchoJobs: https://echojobs.io/job/xai-member-of-technical-staff-rl-training-framework-aadwf.