Linux & Proxmox Systems Engineer – HA & Automation

ao-inc; Sugar Land (TX); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Flexible health benefits (medical, Rx,

Dental and vision plans

401(k) employer matching

Generous PTO

Job summary

AOI in Sugar Land, Texas is seeking a hands-on Linux & Proxmox Systems Administrator to manage and secure our Linux server and virtualized infrastructure supporting IT operations in a fast-paced manufacturing environment.

You will administer Proxmox VE clusters, VMs, LXC containers, storage technologies, backups, monitoring, and automation, ensuring availability, performance, and security while collaborating with IT teams.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience.
• 3+ years of professional Linux systems administration experience, including proven hands-on experience with Proxmox VE.
• Experience administering Proxmox VE clusters, including high availability (HA), backup and restore, and storage integration (Ceph, ZFS, NFS, or iSCSI).
• Experience managing virtual machines and LXC containers, including migration, snapshots, and performance tuning.
• Strong knowledge of Linux operating systems, including kernel tuning, boot processes, and package management.
• Proficiency in Bash shell scripting and at least one additional scripting language, such as Python, Perl, or Ruby.
• Solid understanding of networking concepts, including TCP/IP, DNS, DHCP, VLANs, firewalls, and load balancing.
• Knowledge of system security best practices, including SELinux, AppArmor, and iptables/firewalld.
• Familiarity with monitoring and observability tools such as Zabbix, Nagios, Prometheus, or Grafana.
• Experience with backup and recovery tools such as Veeam, Proxmox Backup Server, or rsync.
• Strong systems thinking, analytical, troubleshooting, and problem-solving skills, with a detail-oriented and proactive approach to system maintenance.
• Excellent written and verbal communication skills, with the ability to work effectively in a collaborative environment.
• Ability to work independently while managing multiple time-sensitive priorities.
• Willingness to participate in an on-call rotation and respond to critical incidents as needed.

Responsibilities

• Install, configure, maintain, and troubleshoot Linux servers across production and development environments.
• Deploy, configure, and manage Proxmox VE clusters, including cluster nodes, quorum, high availability (HA), QEMU/KVM virtual machines, and LXC containers.
• Create, migrate, snapshot, back up, and restore virtual machines and containers while monitoring resource utilization and optimizing performance.
• Manage storage technologies integrated with Proxmox VE, including Ceph, ZFS, NFS, iSCSI, and SAN/NAS storage.
• Maintain and upgrade Proxmox VE clusters and supporting infrastructure as needed.
• Proactively monitor system health, performance, availability, and security; diagnose and resolve hardware, software, virtualization, storage, and network issues.

Skills

Proxmox VE

Linux administration

Bash scripting

Python

Networking

Security best practices

Automation

Education

Bachelor’s degree in Computer Science, Information Technology, or related field

Tools

Ceph

ZFS

NFS

iSCSI

Veeam

Proxmox Backup Server

Job description

AOI in Sugar Land, Texas is seeking a hands-on Linux & Proxmox Systems Administrator to manage and secure our Linux server and virtualized infrastructure supporting IT operations in a fast-paced manufacturing environment.

You will administer Proxmox VE clusters, VMs, LXC containers, storage technologies, backups, monitoring, and automation, ensuring availability, performance, and security while collaborating with IT teams.