xAI Software Engineer Infrastructure
via
xAI
About xAI
xAIâs mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the companyâs mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.
About the role
Weâre looking for exceptional infrastructure engineers to redefine what is possible in large-scale AI infrastructure and build the supercomputing platform that powers xAIâs ambitious goals. The initial 200,000 GPU phase of the Colossus supercluster in Memphis was only the beginning of xAIâs infrastructure roadmap, and we need world-class infra engineers to build the future of large-scale AI.
As a Software Engineer on the Infrastructure team, youâll work across multiple workstreams to design, build, and maintain cutting-edge distributed systems that enable our developers to scale our compute and data platforms and ensure efficiency, reliability, and performance at an unprecedented scale.
This role offers the opportunity to shape the backbone of xAIâs technology.
What You'll Do
- Scale compute infrastructure on Kubernetes by building controllers, admission plugins, and supporting systems that empower teams to leverage Kubernetes effectively.
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Posted xAI Software Engineer Infrastructure on December 22, 2025 via
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