Senior Systems Administrator (Unix/Linux) - (758) Share this job as a link in your status update to LinkedIn. Job Title Senior Systems Administrator (Unix/Linux) Location Dahlgren, VA 22448 US (Primary) Job Type Full-time Education Some College Coursework Completed Career Level Experienced (Non-Manager) Category Information Technology Job Description EPS Corporation is seeking a highly skilledSenior Systems Administrator (Unix/Linux)to support enterprise-level networks and systems within a secure and mission-critical environment. The ideal candidate will bring deep expertise in Unix/Linux administration, network security, and performance optimization, ensuring system reliability, security, and efficiency. Requirements Key Responsibilities + Administer, maintain, and supportUnix/Linux operating systems, networks, and software applications. + Performsystem installation, configuration, and integrationof hardware, operating systems, and COTS software. + Managesystem backups, recovery procedures, and disaster recoveryoperations to ensure data integrity and availability. + Conductsystem performance monitoring, tuning, and optimizationto maintain operational efficiency. + Implement and maintainsecurity configurations, access controls, and vulnerability management in accordance with DoD and company standards. + Troubleshoothardware, software, and network issues, identifying root causes and implementing corrective actions. + Manage system resources, user accounts, file systems, and library structures. + Support and enforce network security policies, including the use of firewalls and intrusion detection/prevention systems. + Stay current on emergingcyber threats, attack methods, and detection toolsto ensure proactive defense. Required Qualifications ACTIVE TOP SECRET + Six (6) yearsof professional experience inUnix and/or Linux system administrationof networks and software systems. + Hands-on experience in: + System backup and recovery + Software and security management + Hardware installation and configuration + Performance tuning and troubleshooting + Network administrationusing protocols such asTCP/IP + Experience withmajor network security toolssuch as firewalls, IDS/IPS, and vulnerability assessment tools. + Knowledge ofcomputing and networking vulnerabilities,attack vectors, andmitigation/detection methods. + Must meetDoD 8570 IAT Level IIIcertification requirements (e.g., CISSP, CASP+, or equivalent). + Must possess an activeT5 investigation(Top Secret eligibility or higher). + Strong analytical, problem-solving, and documentation skills. Preferred Qualifications + Experience withautomation and configuration management tools(e.g., Ansible, Puppet, Chef). + Familiarity withcloud or virtualized environments(e.g., VMware, AWS, Azure). + Knowledge ofSTIG compliance,RMF, or other DoD cybersecurity frameworks. Desired Skills/Other Considerations EPS Corporation is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics. Type of Security Clearance Required Top Secret