Senior Cloud System Administrator

5C DATA CENTERS
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.

JOB TITLE
Senior Cloud System Administrator
DEPARTMENT
Cloud Operations
LOCATION
Ohio, USA
WORK ARRANGEMENT
Remote
SALARY RANGE
USD $85,000 — USD $120,000
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.

This position requires strong Linux, and hardware troubleshooting skills, hands‑on experience with enterprise server hardware, and the ability to diagnose issues across the full infrastructure stack - from physical components and firmware through the operating system and cluster-management layer.

Our core values guide how we collaborate, make decisions, support one another, and serve our customers. We’re looking for people who embrace them and help us build something great.

• 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.

• Install, configure, validate, and troubleshoot NVIDIA GPU infrastructure, including drivers, CUDA, firmware, and supporting software components.
• Monitor and diagnose GPU health, availability, and performance using tools such as NVIDIA-SMI, DCGM, and Fabric Manager.
• Investigate and resolve GPU, NVLink, NVSwitch, PCIe, ECC, thermal, power, and multi‑GPU communication issues, coordinating hardware replacements as needed.

• Administer enterprise Linux environments, including operating system updates, package management, kernel modules, and device drivers.
• Troubleshoot system performance, boot failures, kernel issues, networking, storage, authentication, and security-related problems.
• Analyze logs and system metrics to diagnose crashes, kernel panics, resource constraints, and hardware-related operating system failures.

• Support enterprise server platforms and troubleshoot CPUs, memory, GPUs, NICs, storage controllers, power systems, and other hardware components.
• Manage and validate firmware across servers, networking, storage, and GPU infrastructure to ensure compatibility and stability.
• Utilize out-of-band management tools for remote troubleshooting, hardware health monitoring, inventory collection, and post-repair validation.

• Troubleshoot Ethernet, Infini Band, RoCE, RDMA, and GPUDirect networking issues within HPC and AI…