Linux Systems Administrator (202608

PURVIS Systems is a technology solutions partner that develops, implements and maintains mission-critical solutions for federal and local government agencies.

PURVIS Systems has an immediate opening for a Systems Administrator with a strong background in Linux system administration and working knowledge of network engineering. The ideal candidate is a technically skilled and dependable Systems Administrator with experience designing, integrating, configuring, maintaining and troubleshooting Linux-based systems and supporting network infrastructure in secure, mission-focused environments.

The individual should have hands-on experience as a Linux Systems Administrator with a strong understanding of Red Hat Enterprise Linux (RHEL), virtualization, TCP/IP networking, system security, troubleshooting and system integration.

• Design, configure, integrate, maintain, and troubleshoot Linux-based computing environments.
• Administer and maintain Red Hat Enterprise Linux (RHEL) systems, including installation, configuration, patching, upgrades, performance optimization, and lifecycle management.
• Apply Linux System Administrator experience to troubleshoot operating system, hardware, software, storage, application, and network-related issues.
• Configure and troubleshoot Linux networking, including network interfaces, routing tables, DNS, DHCP, firewall rules, and TCP/IP connectivity.
• Support the configuration and troubleshooting of network infrastructure, including managed switches, VLANs, trunking, routing, and network segmentation.
• Assist with troubleshooting network connectivity and performance issues using common Linux and network diagnostic tools.
• Support integration of Linux servers and workstations with existing LAN and enterprise network infrastructure.
• Develop, test, document, and implement system configurations and engineering solutions supporting mission-critical systems.
• Support system architecture, integration, testing, deployment, sustainment, and technical refresh activities.
• Support virtualized environments using Virtual box, or similar enterprise virtualization technologies.
• Perform system and network patching, vulnerability remediation, and security hardening in accordance with applicable Information Assurance requirements and DISA STIGs.
• Support cybersecurity and Information Assurance activities, including vulnerability assessments, remediation, IAVAs, IAVBs, technical advisories, and security compliance.
• Analyze system and network performance, reliability, and availability and recommend engineering improvements where appropriate.
• Develop and maintain system and network documentation, including system configurations, network diagrams, engineering procedures, installation procedures, and troubleshooting guides.
• Support system backups, recovery procedures, software deployment, configuration management, and system installation activities.
• Work with systems, network, and cybersecurity teams to investigate and resolve complex technical problems from initial diagnosis through final resolution.
• Provide technical support during system integration, testing, installation, and deployment activities.
• Travel requirement for this position is 10%.

• Bachelor’s degree in Systems Engineering, Computer Engineering, Computer Science, Information Technology, Cybersecurity, or a related technical field required.
• Professional experience working as a Linux System Administrator, Systems Engineer, or in a comparable Linux-focused technical role.
• 2 – 3 years of relevant systems administration, systems engineering, integration, networking, or related technical experience preferred.
• Strong hands-on experience administering Red Hat Enterprise Linux (RHEL) or comparable enterprise Linux distributions.
• Experience with Linux installation, configuration, patching, troubleshooting, system services, networking, storage, permissions, and security.
• Working knowledge of network engineering concepts including TCP/IP, IPv4, subnetting, DNS, DHCP, VLANs, switching, routing, network segmentation, and firewalls.
• Experience configuring or troubleshooting managed Ethernet switches and VLAN-based network environments preferred.
• Ability to troubleshoot connectivity issues across the OSI model, including physical, data-link, network, and application-layer issues.
• Familiarity with network diagnostic tools and utilities such as ping, trace route, tcpdump, Wireshark, netstat/ss, and similar tools.
• Experience with virtualization technologies such as Virtual Box and VMM preferred.
• Experience with scripting or automation using Bash, Python, Ansible, or similar technologies preferred.
• Knowledge of cybersecurity practices, vulnerability remediation, DISA STIG implementation, system hardening, and Information Assurance requirements.
• Experience supporting systems and networks within DoD, federal government, or other regulated environments preferred.
• CompTIA Security+ certification or ability to meet applicable DoD…