Senior Infrastructure and Systems Administrator

Peraton•College Park, MD

1d•Onsite

About The Position

Peraton Labs is seeking a poly cleared Senior Infrastructure and Systems Administrator to support cleared research and development efforts for a government customer in Maryland. This role will support the implementation, maintenance, security, and operational readiness of complex classified and unclassified research infrastructure environments. This position is ideal candidate for this role is a hands-on infrastructure professional with strong Linux and Windows administration experience, networking fundamentals, virtualization knowledge, security configuration experience, and the ability to support dynamic research programs. This position will work closely with the Maryland-based customer, researchers, engineers, subcontractors, and program leadership to ensure mission systems are reliable, secure, compliant, and ready to support advanced R&D efforts. This position requires full-time on-site work at a customer site near College Park, MD.

Requirements

Minimum of 6+ years of experience with a Bachelor’s degree, 4+ years of experience with a Master’s degree, or a PhD in Computer Science, Computer Engineering, Information Systems, Cybersecurity, or a related technical field. In lieu of a Bachelors, an additional 4 years of experience is required for a total of 10+ years relevant experience.
Strong experience with Linux and Windows server system administration
Experience administering, securing, and troubleshooting enterprise or research infrastructure environments
Experience with network fundamentals, including TCP/IP, routing, switching, DNS, DHCP, VLANs, firewalls, and remote access
Experience with virtualization technologies such as VMware, Hyper-V, KVM, Proxmox, OpenStack, or similar platforms
Experience installing, configuring, troubleshooting, and maintaining IT/networking hardware and software
Experience applying security baselines, system hardening, patching, vulnerability remediation, and endpoint protection updates
Experience supporting backup, recovery, logging, audit, and system maintenance procedures
Ability to support physical infrastructure work, including cabling, rack/stack, power, patching, and hardware replacement
Ability to work as a senior contributor in a team environment involving customer, subcontractor, and internal technical personnel
Strong communication and documentation skills
US Citizenship is a requirement for this position
This position requires an active/current TS/SCI w/ Polygraph

Nice To Haves

Experience supporting classified research environments, DoD/IC customers, or national security programs
Experience working directly with ISSMs, ISSOs, security control assessors, or customer security teams
Experience with compliance activities related to RMF, NIST 800-53, STIGs, SCAP, ACAS/Nessus, audit logs, media control, system sanitization, and continuous monitoring
Experience with automation using PowerShell, Bash, Python, Ansible, or similar tools
Experience integrating GOTS, COTS, and open-source solutions into secure infrastructure environments
Experience with storage technologies such as NAS, SAN, RAID, iSCSI, NFS, SMB, object storage, or backup appliances
Experience with monitoring, logging, and alerting tools such as Splunk, ELK/OpenSearch, Prometheus, Grafana, Zabbix, Nagios, or similar tools
Experience with endpoint security, anti-virus, EDR, host-based security tools, vulnerability scanners, or configuration compliance tools
Experience supporting large-scale software development, research testbeds, cyber ranges, or prototype development environments
Experience with container platforms or DevOps environments such as Docker, Kubernetes, GitLab, GitHub, Jenkins, or CI/CD pipelines
Experience developing SOPs, build guides, system security documentation, network diagrams, recovery procedures, or operational runbooks
Ability to monitor and coordinate subcontractor technical tasking
Strong customer-facing communication skills and ability to operate independently in a fast-paced R&D environment

Responsibilities

Implement, maintain, and enhance classified and unclassified research infrastructure systems
Perform Linux and Windows server administration, including installation, configuration, patching, troubleshooting, hardening, and lifecycle support
Install, configure, and troubleshoot IT, networking, compute, storage, and lab hardware/software
Build and maintain OS images for Linux and Windows environments
Configure new systems using security best practices, approved baselines, and program-specific requirements
Support virtualization and infrastructure platforms such as VMware, Proxmox, Hyper-V, KVM, OpenStack, or similar technologies
Support network configuration and troubleshooting, including TCP/IP, VLANs, routing, switching, DNS, DHCP, firewalls, remote access, and port activation/patching
Integrate GOTS, COTS, and open-source tools into secure research environments
Maintain system security posture through regular patching, anti-virus/endpoint protection updates, vulnerability remediation, and configuration management
Support physical infrastructure activities, including system setup, cabling, rack/stack, power, labeling, and network patching in classified and unclassified spaces
Develop and maintain backup, recovery, log archive, and data retention procedures aligned to program security plans
Exercise system and data recovery procedures on a regular basis
Create scripts, automation, or tool recommendations to support audit readiness and operational efficiency
Support audit tasks, evidence collection, account reviews, log review, media control, and compliance activities in coordination with Security teams
Develop and execute approved procedures for sanitizing, releasing, or disposing of system components and media
Maintain technical documentation, system diagrams, configuration records, SOPs, and operational runbooks
Interface with the government customer, program teams, security personnel, and subcontractors to coordinate infrastructure work and resolve issues