Software Engineer

xAI is pioneering AI systems development with a mission to understand the universe and advance human knowledge. The London team specializes in large-scale distributed systems, contributing significantly to projects like the Grok production stack. They work across the full technology stack, from build systems to frontend development.

As a Senior Software Engineer, you'll join a small, highly motivated team that values engineering excellence and operates with a flat organizational structure. The role demands expertise in systems programming languages, Python ecosystem, and distributed systems design. You'll work from the London office, collaborating with team members in California, requiring occasional late meetings and business trips.

The ideal candidate should be an expert in languages like Rust, C++, or Go, have strong Python skills including binding development, and experience with distributed systems and API design. Additional valuable skills include TypeScript, React, Kubernetes, and ML-related technologies like JAX, CUDA, and Triton.

The position offers competitive compensation, equity, health benefits, and a flexible time-off policy. The company culture emphasizes hands-on contribution, initiative-based leadership, and strong communication skills. This is an excellent opportunity for engineers who thrive on solving complex technical challenges and want to be part of a cutting-edge AI company.