Software Engineer - Platform Infrastructure

Key Responsibilities:

• Design, build, and implement a large-scale distributed system that powers one of the world's largest supercomputing clusters.
• Dive into the low-level stack to profile, debug, and optimize performance across diverse systems, including GPUs, Linux kernel, networking, and filesystems, to achieve peak efficiency.
• Collaborate on hardware, software, and algorithm co-design to push the boundaries of AI training.
• Maintain and innovate on our codebase to ensure scalability and reliability.
• Develop tools to enhance team productivity and streamline workflows.

Basic Qualification:

• Systems programming experience in C, C++, or Rust
• Computer systems fundamentals with a grasp of how computers execute code from transistors to high-level applications.
• Hands-on expertise with Kubernetes (K8s), including cluster architecture, pod lifecycle, networking (CNI), storage (CSI), service mesh, and production-grade operations

Preferred Qualification:

• Collaborate in a fast-paced, open environment to design and foundational systems.
• Strong debugging skills across the full stack — from kernel and OS up through container orchestration layers
• Deep knowledge of operating systems internals (process scheduling, memory management, file systems, and synchronization primitives)
• Proficiency in performance analysis, profiling, and low-level optimization techniques
• Solid understanding of computer networks and the TCP/IP stack
• Experience working with Linux kernel concepts or systems-level debugging tools (e.g., perf, gdb, strace, Wireshark)
• Proficiency deploying and managing workloads using Kubernetes manifests, Helm, Operators, and GitOps workflows
• Solid understanding of containerization technologies (Docker, containerd, crio) and their interaction with the Linux kernel
• Experience with observability and monitoring in distributed systems (Prometheus, Grafana, VictoriaMetrics, OpenTelemetry, or similar)

Compensation and Benefits:

$180,000 - $440,000 USD Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.