Post-Training and RL

Job summary

Responsibilities

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding…

• You will work on the most critical post-training and reinforcement learning challenges at any given time — including reward modeling, preference optimization (RLHF/DPO), and RL…
• You will get clarity on your first project before an offer.

What they're looking for

• You believe truth-seeking AI is the most important and challenging problem.
• You are obsessed about building incredibly useful models through post-training and RL techniques.
• You are a power user of AI models and eager to push the boundaries of what’s possible with reinforcement learning and alignment methods.
• If you previously worked on post-training, RLHF, or trained models used by millions of people it’s a big plus, but relevant experience is not required.
• You take pride in your work and thrive in meritocratic environments.