Linux Systems Administrator

I’m looking for a knowledgeable Linux Systems Administrator or Infrastructure Engineer to help configure, optimize, and maintain my private server and networking infrastructure.

My setup includes enterprise-grade AI computing hardware, virtualization systems, managed network switches, network-attached storage, and multiple interconnected computers.

I’m looking for someone who can work independently, troubleshoot complex technical issues, and help develop a reliable, secure, and scalable infrastructure.

The initial focus will be getting my existing systems properly configured and integrated, followed by ongoing maintenance, optimization, and future expansion projects.

Current Infrastructure

• NVIDIA H200 NVL AI server running Ubuntu Linux
• Proxmox virtualization environment
• OPNsense firewall and router
• Managed 10GbE network switches and VLANs
• 5 Gbps symmetrical fiber internet connection
• Multiple Windows and Linux computers
• Network-attached storage (NAS) systems
• Dedicated gaming servers and AI computing infrastructure

Responsibilities

• Configure, manage, and optimize Ubuntu Linux servers
• Configure and maintain Proxmox virtual machines and containers
• Troubleshoot networking, hardware, and software issues
• Configure VLANs, routing, firewall rules, and network segmentation
• Set up Docker containers and various server applications
• Assist with NVIDIA GPU drivers, CUDA, and AI computing workloads
• Implement monitoring, backups, and security measures
• Configure secure remote administration and management
• Document system configurations and changes
• Assist with future automation, infrastructure expansion, and system integration

Required:

• Hands-on experience with Linux administration, preferably Ubuntu
• Solid understanding of TCP/IP networking, DNS, DHCP, routing, and VLANs
• Experience with SSH and Linux command-line administration
• Familiarity with virtualization technologies
• Strong troubleshooting and problem-solving abilities
• Ability to work independently

Preferred but Not Required:

• Proxmox VE experience
• OPNsense or pfSense experience
• Docker and container management
• NVIDIA GPU computing, CUDA, or AI/ML infrastructure
• Bash or Python scripting
• Enterprise networking and NAS administration
• Experience with infrastructure automation

Ideal Candidate

I’m open to experienced professionals, independent contractors, and college students with relevant hands-on experience.

A formal degree is not required. I’m primarily interested in practical technical ability, reliability, problem-solving skills, and a willingness to learn., I’m particularly interested in candidates who have experience building and managing their own home labs, servers, or networking environments.

• $25-$45 per hour, depending on experience
• Flexible scheduling
• Approximately 5-20 hours per week during active projects, depending on workload
• Potential for ongoing maintenance and additional projects