Senior Systems Administrator (Unix/Linux)

EPS Corporation is seeking a highly skilled Senior 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.

Key Responsibilities

• Administer, maintain, and support Unix/Linux operating systems, networks, and software applications.

• Perform system installation, configuration, and integration of hardware, operating systems, and COTS software.

• Manage system backups, recovery procedures, and disaster recovery operations to ensure data integrity and availability.

• Conduct system performance monitoring, tuning, and optimization to maintain operational efficiency.

• Implement and maintain security configurations, access controls, and vulnerability management in accordance with DoD and company standards.

• Troubleshoot hardware, 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 emerging cyber threats, attack methods, and detection tools to ensure proactive defense.

Required Qualifications

ACTIVE TOP SECRET 

• Six (6) years of professional experience in Unix and/or Linux system administration of 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 administration using protocols such as TCP/IP

• Experience with major network security tools such as firewalls, IDS/IPS, and vulnerability assessment tools.

• Knowledge of computing and networking vulnerabilities, attack vectors, and mitigation/detection methods.

• Must meet DoD 8570 IAT Level III certification requirements (e.g., CISSP, CASP , or equivalent).

• Must possess an active T5 investigation (Top Secret eligibility or higher).

• Strong analytical, problem-solving, and documentation skills.

Preferred Qualifications

• Experience with automation and configuration management tools (e.g., Ansible, Puppet, Chef).

• Familiarity with cloud or virtualized environments (e.g., VMware, AWS, Azure).

• Knowledge of STIG compliance, RMF, or other DoD cybersecurity frameworks.

EPS Corporation is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.