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SpaceXAI

Member of Technical Staff - RL Inference

SpaceXAI · Palo Alto, CA

Posted about 3 months ago · $180,000 - $440,000

or apply directly on SpaceXAI's site. We never take the application ourselves.

Is this posting real?

This role has been open
82 days
SpaceXAI's roles stay open a median of 82 days
Reposted
No
Salary listed
Yes
32% of SpaceXAI's roles list one
Ghost-job risk at SpaceXAI
high
257 stale, 5 reposted of 258 open
Hiring momentum
339 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-24

Measured from postings appearing on and disappearing from SpaceXAI's own greenhouse board since 2026-08-03. Full hiring picture for SpaceXAI.

About this role

The Member of Technical Staff - RL Inference role at SpaceX involves designing and optimizing the inference stack for reinforcement learning (RL) workloads. The engineer will analyze and address performance bottlenecks in large-scale RL systems and collaborate with the modeling team to implement novel RL techniques and algorithms.

Our read on this posting3.6out of 5
benefits
4/5
freshness
1/5
career value
4/5
role clarity
4/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of SpaceXAI as an employer.

What you need

  • Experience in building, debugging, and optimizing efficiency of large-scale distributed systems
  • Experience in LLM inference
  • Proficiency in programming languages such as Python, C++ and/or Rust; frameworks such as PyTorch, Jax, CUDA
  • Willingness to dive deep and solve hardcore problems at all levels of the stack

Nice to have

  • Strong knowledge in quantization and numerics in LLM inference and training
  • Experience in developing inference engines, e.g. SGLang, vLLM

What you get

  • $180,000 - $440,000 USD
  • Equity
  • Comprehensive medical, vision, and dental coverage
  • Access to a 401(k) retirement plan
  • Short & long-term disability insurance
  • Life insurance

Worth weighing

  • The salary range is quite broad, which may indicate variability based on experience or negotiation.
  • The role involves working with cutting-edge technologies but may require deep problem-solving in complex systems.
  • The preferred skills suggest a focus on specialized knowledge that may not be common in all candidates.

Summarised from SpaceXAI's posting. Read the full original.

Listed by SpaceXAI on their greenhouse job board, last confirmed open on 2026-10-24. PitchMeAI is not the employer.

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