About The Position

SpaceXSI is building Super Intelligence to help humanity understand the universe. Its teams are building the full Super Intelligence stack, including Colossus supercomputers, Grok models, and applications such as Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. The company describes a flywheel in which more compute trains better models, better models power more useful products, and product usage informs future development. The role focuses on model training.

Requirements

  • Experience writing production-quality code in Python, PyTorch, JAX, Rust, or C++.
  • Experience training large models, such as through pretraining, post-training, fine-tuning, or reinforcement learning training of neural networks with 1 billion or more parameters.

Nice To Haves

  • Experience training models used by millions of users.
  • Power user of AI models.
  • Belief that truth-seeking AI is the most important and challenging problem.
  • Pride in one's work and ability to thrive in meritocratic environments.
  • Strong interest in building incredibly useful models.

Benefits

  • Equity.
  • Comprehensive medical, vision, and dental coverage.
  • Access to a 401(k) retirement plan.
  • Short- and long-term disability insurance.
  • Life insurance.
  • Various other discounts and perks.
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