Software Engineer - Sandbox Service

The role is on xAI’s Sandbox service team building and maintaining a secure, scalable system that gives models controlled access to computational environments (containers and VMs) used across training and product. The team enables models to run code, interact with tools, and support reinforcement learning workflows by operating a full‑stack infrastructure spanning orchestration, cluster resource scheduling, and node-level performance. This is a deeply technical position in a fast-moving, hands-on environment that emphasizes engineering excellence and strong communication.