RL Inference
SpaceX Super Intelligence
About the Role
The RL infrastructure team is looking for an engineer to help with low precision RL training and inference.
Key Responsibilities
- Design and optimize our inference stack for all shapes of RL workloads at SpaceXSI, from small scale ablations to production training runs.
- Analyze, profile and address performance bottlenecks in large scale RL systems.
- Work closely with the modelling team to efficiently implement novel RL techniques and algorithms.
Requirements & Tech Stack
- 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.
Preferred Skills and Experience
- Strong knowledge in quantization and numerics in LLM inference and training.
- Experience in developing inference engines, e.g. SGLang, vLLM.