Linux Systems Administrator

Linux Systems AdministratorPeraton Labs is seeking a poly cleared Linux Systems Administrator to support the infrastructure team for a cleared research and development program in Maryland. This role will support the implementation, maintenance, troubleshooting, and daily operations of Linux-based systems used across classified and unclassified research environments.The ideal candidate for this role is a hands-on systems administrator with strong Linux experience, solid troubleshooting skills, scripting ability, and the ability to support users, researchers, engineers, and customer stakeholders in a fast-paced R&D environment. This position will help ensure research systems, servers, storage, networking components, and supporting infrastructure remain reliable, secure, and available for mission-focused prototype development and experimentation.This position requires full-time on-site work at a customer site near College Park, MD.Key responsibilities may include:Provide day-to-day administration, maintenance, monitoring, and troubleshooting for Linux-based IT systemsSupport implementation, configuration, operation, and sustainment of servers, workstations, storage, network-connected devices, and research infrastructureProvide Tier 1 and Tier 2 support for system access, user issues, software problems, hardware issues, and operational incidentsDiagnose and resolve Linux system, application, storage, network, and user access issuesManage user accounts, permissions, authentication, system access, and basic security controlsInstall, configure, patch, and update Linux operating systems, software packages, tools, and system servicesSupport Windows systems administration as needed within mixed Linux/Windows environmentsDevelop scripts and automation using Bash, Python, or similar tools to improve system operations, monitoring, reporting, and repeatable administration tasksMonitor system performance, availability, logs, storage utilization, and resource consumptionSupport system capacity analysis, resource planning, and performance optimizationSupport backup, recovery, log management, archive, and system restoration proceduresAssist users, researchers, and engineers with accessing and using IT systems in classified and unclassified environmentsEscalate issues, communicate system status, and coordinate problem resolution with internal teams, customer stakeholders, and subcontractor personnelMaintain system documentation, operational procedures, configuration records, and troubleshooting notesSupport security posture activities, including patching, vulnerability remediation, endpoint protection, and audit support*This position may be eligible for an increased sign-on bonus. Eligibility, bonus amount, and applicable terms and conditions will be discussed during the recruiting process*QualificationsMinimum Qualifications:Minimum of 3+ years of experience with a Bachelors degree, 1+ years of experience with a Masters degree, or a PhD in Computer Science, Information Systems, Computer Engineering, Cybersecurity, or a related technical discipline. In lieu of a Bachelors, an additional 4 years of experience is required for a total of 7+ years relevant experience.Strong experience with Linux systems administrationExperience with Windows system administration in mixed operating system environmentsExperience supporting IT systems in programs or environments of similar scope, scale, and complexityExperience with Linux installation, configuration, patching, troubleshooting, user support, and system maintenanceExperience with scripting/automation using Python, Bash, or similarUnderstanding of basic networking concepts, including TCP/IP, DNS, DHCP, routing, switching, firewalls, ports, and network troubleshootingExperience support client/server systems, storage devices, network-connected devices, and user workstationsAbility to provide Tier 1 and Tier 2 support, diagnose issues, and communicate status clearlyStrong communication skills and ability to work as part of an integrated team with customers, subcontractors, and Peraton personnel.US Citizenship is a requirement for this positionThis position requires an active/current TS/SCI w/ PolygraphDesired Additional Qualifications:Experience supporting classified research environments, DoD/IC customers, or national security programsExperience with Linux distributions such as RHEL, CentOS, Rocky Linux, Ubuntu, Debian, or similar platformsExperience with system hardening, patch management, vulnerability remediation, audit support, STIGs, ACAS/Nessus, SCAP, or RMF-related activitiesExperience with virtualization platforms such as VMware, KVM, Proxmox, Hyper-V, OpenStack, or similar toolsExperience with storage technologies such as NAS, SAN, RAID, NFS, SMB, iSCSI, object storage, or backup appliancesExperience with configuration management or automation tools such as Ansible, Puppet, Chef, SaltStack, or Terraform/OpenTofuExperience with monitoring, logging, and alerting tools such as Splunk, ELK/OpenSearch, Prometheus, Grafana, Zabbix, Nagios, or similar toolsExperience with network troubleshooting of complex issues, such as IPSec, VXLan, FWs, Load Balancing and DNSExpertise with Virtual Desktop Infrastructure (VDI) and thin client architecturesExperience with Security administration to include enterprise antivirus, malware detection, intrusion detection, and audit solutionsExperience with open source tools, such as SnortExperience with containers or DevOps environments such as Docker, Podman, Kubernetes, GitLab, GitHub, Jenkins, or CI/CD pipelinesKnowledge of cloud or private cloud technologies such as OpenStack, AWS, Hadoop, Cloudera, or similar platformsExperience supporting operational mission partners, research teams, software developers, or cyber/network experimentation environmentsAbility to establish and maintain strong working relationships across technical teams, customer stakeholders, and program leadershipPeraton OverviewPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.Target Salary Range$104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.