Software Engineer - Platform Core (C++, C)

xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

Responsibilities:

• Build and maintain the lean, high-reliability Linux-based operating system that underpins our supercomputer network fabric.
• Write high-performance device drivers to extract the maximum physical capability from our network and compute hardware.
• Manage deployment, operation, and debugging of our platform in production, including rigorous resolution and root-causing of anomalies.
• Develop and constantly improve tools for observability and configuration management.
• Collaborate with hardware teams and external partners to design the next generation of supercomputer hardware.

Basic Qualifications:

• Hands-on systems programming experience in C or C++.
• Strong operating systems fundamentals, including scheduling, memory management, and I/O.
• Understanding of computer networking, both in the host and common network devices.
• Excellent written and verbal communication skills.

Preferred Skills and Experience:

• Deep knowledge of the Linux kernel and its networking stack.
• Proficiency with debugging tools such as ftrace, perf, Wireshark/tcpdump, eBPF, and gdb.
• Experience bringing up new hardware from scratch.
• Demonstrated track record of developing and optimizing device/peripheral drivers.
• Understanding of major peripheral hardware interface standards.
• Experience with product security, OS/system hardening, and secure boot schemes.

Compensation and Benefits:

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