Full Stack Software Engineer - Post-training

xAI is an innovative AI company focused on creating AI systems that can understand the universe and advance human knowledge. They're seeking a Full Stack Software Engineer to join their post-training team, which transforms pre-trained models into steerable, versatile systems capable of addressing real-world challenges.

The role combines full-stack development expertise with AI model deployment, requiring someone who can build sophisticated data management tools, visualization interfaces, and model evaluation platforms. The position is based in the Bay Area (San Francisco and Palo Alto), offering a competitive salary range of $180,000 - $440,000 USD.

The company operates with a flat organizational structure where all employees are hands-on contributors. They value engineering excellence, strong communication skills, and the ability to work effectively in a small, highly motivated team. The tech stack includes Python, TypeScript, React, and Rust, with gRPC for service communication.

The interview process is comprehensive yet efficient, typically completed within a week, including coding assessments and technical sessions focused on post-training tooling problems. This is an excellent opportunity for an experienced full-stack developer who is passionate about advancing AI technology and wants to work at the frontier of AI development.

The ideal candidate will have expertise in full-stack development, strong software engineering practices, and familiarity with AI model training workflows. They should be capable of building high-performance applications while maintaining code quality and testing standards. The role offers the chance to work on cutting-edge AI technology while contributing to tools that will shape the future of AI development.