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Hardcore Engineer - Reasoning Training
xAI
Active - posted 13 days ago
On-site
United States
Senior
AI
$180K/yr - $440K/yr
Job Description
Key Responsibilities:
- Design and implement state-of-the-art distributed RL systems
- Profile, debug, and optimize system performance
- Software and algorithm co-design with researchers
Requirements:
- Experience building, debugging, and optimizing distributed training systems
- Experience with distributed reinforcement learning, LLM inference
- Experience with high-performance, large-scale distributed systems
- Proficiency with Python, async/concurrent programming, JAX, Rust
Tech Stack
- Python / Rust
- JAX, PyTorch, XLA
- CUDA, NCCL