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SpaceXAI

Member of Technical Staff - Post-Training and RL

SpaceXAI · Palo Alto, CA

Posted about 3 months ago · $180,000 - $600,000

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

In this role, you will tackle critical challenges in post-training and reinforcement learning, focusing on areas like reward modeling and preference optimization. You will work with AI models to enhance reasoning and real-world capabilities, contributing to the development of Super Intelligence technologies. Your first project will be clearly defined before you receive an offer.

Our read on this posting3.8out of 5
benefits
4/5
freshness
1/5
career value
5/5
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

  • Belief that truth-seeking AI is a crucial problem
  • Obsessed with building useful models through post-training and RL techniques
  • Power user of AI models
  • Thrives in meritocratic environments

Nice to have

  • Experience with post-training, RLHF, or trained models used by millions of people

What you get

  • Base salary range of $180,000 - $600,000 USD
  • Equity
  • Comprehensive medical, vision, and dental coverage
  • Access to a 401(k) retirement plan
  • Short & long-term disability insurance
  • Life insurance

Worth weighing

  • High salary range may indicate variable compensation based on experience or negotiation
  • Role focuses on specific AI challenges, which may limit exposure to broader engineering tasks

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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