Peraton · 12 hours ago
Senior Proxmox Cluster Administrator
US-MD-College Park
Full-time
Onsite
Senior Level, Lead/Staff
$135K/yr - $216K/yr
12+ years expPeraton is a next-generation national security company that drives missions of consequence spanning the globe. They are seeking a Senior Proxmox Cluster Administrator to manage the day-to-day operations and lifecycle of a Proxmox virtualized environment, ensuring platform reliability and security while supporting a complex Multi-OS research infrastructure.
Information TechnologyRobotics
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Administer and sustain Proxmox VE clusters (quorum/corosync, HA policies, node health, upgrades, scaling, capacity forecasting)
Standardize VM/LXC provisioning
Lead incident response and complex troubleshooting across compute/network/storage
Manage Proxmox host networking (Linux bridges, bonding, VLAN trunking, segmented management planes)
Own backup/restore and DR readiness for virtualization workloads, including periodic restore validation
Maintain platform documentation (runbooks, SOPs, diagrams, change records) and support audit-ready artifacts as required by the program
Partner with Peraton internal, sub-contractors, and government support teams to onboard workloads safely and support continuous improvements
Additional ability to provide support in one or more of the following:
Maintain secure and standardized Linux services and baselines supporting the enclave (hardening, platform services, lifecycle/patch coordination, reliability improvements)
Develop automation to reduce toil and drift (Ansible/Git-based workflows, provisioning/patch/validation pipelines, compliance evidence automation)
Qualification
Required
Minimum of 12+ years of experience and a Bachelors, 10+ years and a Masters, or 8+ years and a Ph.D. in Computer Science or related discipline. In lieu of a Bachelors degree, 4 additional years of experience is required for a total of 16 years
Senior, hands-on experience administering Linux infrastructure in production (RHEL/Ubuntu or similar)
Production experience operating a virtualization platform at scale (Proxmox VE preferred)
Automation proficiency using Ansible and scripting in Bash and/or Python
Strong foundational knowledge in: Cluster/HA concepts (quorum, failover, maintenance/rollback), Virtualization performance troubleshooting (CPU/Memory/IO contention, capacity planning), Networking (VLANs, bonding, segmentation), Storage and data protection (ZFS and/or distributed storage, backup/restore operations)
At least one active technical certification in: systems engineering, information security, networking, system administration, virtualization, IT systems management, or project management. (e.g., Security+, CISSP/CISM, CASP+, CCNA/CCNP, RHCSA/RHCE, VMware VCP, ITIL, PMP, etc.)
US Citizenship with an active/current TS/SCI w/ Polygraph
Preferred
Deep Proxmox experience related to HA tuning, corosync troubleshooting, multi-cluster scaling, and lifecycle upgrades
Advanced virtualization capabilities
Familiarity with DevSecOps/IaC best practices
Experience with security/compliance operations in controlled environments (STIG/RMF/NIST-aligned practices) and vulnerability remediation workflows
Experience with observability tooling (Prometheus/Grafana, ELK/OpenSearch, Splunk) and SLO-driven operations
Benefits
Employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
Company
Peraton
Peraton Fearlessly solving the toughest national security challenges.
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Thomas Terjesen
Chief Information Officer
Recent News
Washington Technology
2026-01-22
2025-09-25
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