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Senior RL Model Engineer: -Scale Training

Listing for: xAI
Apprenticeship/Internship position Listed on 2026-11-09
Job specializations:
  • Software Development
    Software Engineer
Salary/Wage Range or Industry Benchmark: 180000 - 400000 USD Yearly USD 180000.00 400000.00 YEAR

Job Description & How to Apply Below

Position: Senior RL Model Engineer: Large-Scale Training

SpaceXSI in Palo Alto is seeking a Sr. Model Engineer for RL Training Framework to design and optimize the systems powering RL workloads, from ablations to production runs. You will work on scalable, observable RL stacks and large-model training infrastructure.

Responsibilities include implementing production-grade code in Python/C++/Rust, profiling performance, and improving efficiency across distributed systems, with equity and comprehensive benefits as part of SpaceXSI's total rewards.

We would love to welcome a new Senior RL Model Engineer:
Large-Scale Training to our team in Palo Alto, CA, United States.

We invite applications for the Senior RL Model Engineer:
Large-Scale Training position located in Palo Alto, CA, United States.

The following role is for a Senior RL Model Engineer:
Large-Scale Training with xAI.

Our group is growing, and we are hiring a Senior RL Model Engineer:
Large-Scale Training in Palo Alto, CA, United States.

Position Requirements

10+ Years work experience
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