Member of Technical Staff - RL Inference
xAI · Palo Alto, CA
CHECKED 13H AGO
Frontier labonsite$180k–$440k
At a glance
Highlights
- Design and optimize the inference stack for RL workloads at all scales.
- Analyze and resolve performance bottlenecks in large-scale RL systems.
- Help create AI systems that accurately understand the universe.
What they offer
- equity
- comprehensive medical, vision, and dental coverage
- 401(k) retirement plan
- short & long-term disability insurance
- life insurance
Ideal candidate
Hands-on engineer who thrives on curiosity, hard problems, and engineering excellence. Brings strong ownership, prioritization, and clear communication to a small, flat mission-driven team.
Requirements
- 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
- Strong knowledge in quantization and numerics in LLM inference and training
- Experience in developing inference engines, e.g. SGLang, vLLM
Lab profile
About xAI
Builds AI systems to understand the universe and advance human knowledge.
Known for
- Engineering excellence focus
- Large-scale data center operations