Join the Future of Digital Infrastructure

Are you a passionate Senior Cloud System Administrator looking to make a meaningful impact? We're building the next generation of digital infrastructure powering hyperscalers, AI innovation, and high-performance computing across North America.

Role Summary

As a Senior Cloud System Administrator, you will support, maintain, troubleshoot, and optimize large-scale HPC and AI infrastructure across data center and cloud environments. This role is primarily focused on the infrastructure and hardware layer, including Linux operating systems, GPU servers, high-speed networking, storage connectivity, firmware, drivers, and out-of-band management.

You will serve as a senior technical escalation point for complex infrastructure incidents affecting GPU clusters, compute nodes, networking, storage, and supporting management services. You will work closely with Network Engineering, Data Center Operations, Deployment Engineering, vendors, and customer technical teams to restore service, reduce recurring failures, and improve the reliability of production HPC environments.

What You Will Do

• Administer, maintain, and troubleshoot Linux-based HPC, AI, and GPU-accelerated compute environments across bare-metal, virtualized, containerized, and cloud platforms.
• Diagnose and resolve hardware, operating system, networking, storage, driver, and firmware issues affecting production infrastructure.
• Lead complex incident resolution, perform root-cause analysis, and maintain operational documentation, runbooks, and support procedures.

What You Bring

5+ years of experience in Linux systems administration, HPC infrastructure, AI infrastructure, data center operations, or a related field.

Why Join 5C Data Centers?

At 5C, we believe great people build great companies. You'll build a rewarding career while helping shape the future of digital infrastructure - one of the fastest-growing industries in the world.