Sr. Proxmox Virtualization Systems Administrator

Overview: Tract Capital adopts a unique approach to digital infrastructure investment. Leveraging experience and strategic insights honed over three decades of creating successful companies in the space, we excel in nurturing and advancing leading-edge digital infrastructure enterprises. Our team of specialized experts are united by a singular purpose: to support the growth of digital infrastructure. Tract Capital goes beyond simple investment by acting as a strategic partner and catalyst for innovation within the sector. We ensure our engagements not only generate strong financial results but also develop essential digital infrastructure to meet growing demands.

Position Overview: The Proxmox Virtualization Systems Administrator is responsible for deploying, managing, and maintaining Tract Capital’s enterprise virtualization stack — primarily Proxmox Virtual Environment (PVE) and Proxmox Backup Server (PBS) — across corporate and data center environments. This role owns the Design, Procurement and Deployment of compute and storage hardware and the hypervisor and backup platforms that underpin IT and OT systems. The role is also an escalation path for day-to-day issues, security, and performance trouble of the hypervisor and backup platforms.

Job Responsibilities: The successful candidate will have experience and practical expertise in the following:

Proxmox VE Platform Administration

• Deploy, configure, and maintain Proxmox VE clusters, including nodes, storage (ZFS, Ceph, SAN/NAS), networking (bridges, VLANs, SDN), and high-availability/failover groups
• Provision, migrate, and decommission virtual machines and LXC containers to support business, infrastructure, and OT workloads
• Plan and execute firmware, hypervisor, and cluster upgrades with minimal downtime, including version/compatibility validation and rollback planning

Backup, Disaster Recovery & Data Protection

• Administer Proxmox Backup Server (PBS), including backup job scheduling, retention policies, deduplication/storage management, and encryption
• Define and test backup, replication, and disaster recovery procedures for virtualized workloads; validate restore integrity on a recurring basis
• Maintain documented recovery runbooks and participate in DR exercises to meet defined RTO/RPO targets

Performance, Capacity & Security Management

• Monitor cluster health, resource utilization, and storage capacity; right-size and forecast infrastructure growth
• Harden hypervisor and guest configurations in line with security best practices (patching cadence, access controls, certificate management, network segmentation)
• Manage user roles, permissions, and API access within Proxmox; integrate with centralized identity/authentication where applicable

Monitoring, Automation & Documentation

• Implement and tune monitoring/alerting for the virtualization stack (e.g., Proxmox-native alerts, Zabbix, Grafana, PRTG, or similar)
• Build automation and scripting (Bash, Python, Ansible, or Proxmox API) to streamline provisioning, patching, and routine maintenance
• Maintain accurate system documentation, architecture diagrams, and standard operating procedures; support audits and governance reviews

Cross-Functional Collaboration & Support

• Partner with Infrastructure, Network, Security, and application teams to plan capacity for new systems and projects (e.g., Procore, Ivalua, Chekhub) hosted on the virtualization platform
• Provide tiered operational support and act as an escalation point for virtualization and backup incidents
• Evaluate and recommend improvements to the virtualization roadmap, including capacity expansion and tooling

Required Traits, Expertise and Skills

Education & Experience

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent practical experience
• 3+ years of hands-on systems administration experience, including 1-2+ years directly administering Proxmox VE/PBS (or comparable hypervisor platforms such as VMware vSphere or Hyper-V, with demonstrated ability to transition to Proxmox)
• Experience in high-growth, PE-backed, or infrastructure/data center environments preferred

Technical / Functional Expertise

• Proxmox VE and Proxmox Backup Server administration, including clustering, HA, and storage backends (ZFS, Ceph, ,NFS/iSCSI)
• Strong Linux (Debian-based) systems administration and command-line proficiency
• Networking fundamentals relevant to virtualization: VLANs, bridging/bonding, software-defined networking, firewalling
• Scripting/automation (Bash, Python, or Ansible) and familiarity with the Proxmox API
• Backup/DR concepts, including retention, deduplication, encryption, and restore validation

Industry Experience

• Prior experience supporting enterprise IT or OT infrastructure, data centers, or critical operational systems strongly preferred

Core Skills & Competencies

• Strong troubleshooting and root-cause analysis skills under time pressure
• Clear technical documentation and communication skills across technical and non-technical stakeholders
• Ownership mindset with the ability to work autonomously and drive projects to completion with minimal oversight
• Comfort operating in a fast-paced, evolving environment with evolving priorities

Location: Denver, CO office (Hybrid) or Seattle, WA (Hybrid)

Travel Requirement: Occasional travel (estimated 10-20%) to data center sites for hardware deployment, migrations, or on-site maintenance

Expected Salary Range: $130,000 - $150,00 Base Salary + Discretionary Bonus

Tract Capital Employment

Tract Capital employees enjoy competitive compensation and comprehensive benefits, including 100% employer-covered medical, dental, and vision insurance, a 401K program, standard paid holidays, and unlimited PTO.

NOTE: This job description is not intended to be all-inclusive. Employees may perform other related duties to meet the organization’s ongoing needs.

Tract Capital is proud to be an Equal Opportunity Employer. Qualified applicants are considered for employment regardless of age, race, color, religion, sex, national origin, sexual orientation, gender identity, disability, or veteran status.

If you need assistance applying for any of our open positions, please contact us at info@tractcapital.com.