Senior UNIX/Linux System Engineer

ERT, Inc.; Radford (VA); On-site; USD 100,000 - 140,000; Full time

Job summary

ERT, Inc. is seeking a Senior UNIX/Linux System Engineer in Radford, Virginia for managing and supporting servers in a mixed environment of Red Hat Enterprise Linux and Solaris UNIX. The position requires an active DoD Secret Security Clearance and offers a salary range of $100,000 - $140,000.

The ideal candidate will have at least five years of UNIX/Linux experience, a CompTIA Security+ certification, and strong troubleshooting skills in complex network environments. Excellent communication and team skills are essential.

Qualifications

• Minimum five years’ experience as a Unix/Linux Systems Administrator or IT Engineer with experience in automating assigned tasks.
• Minimum three years’ experience configuring and maintaining key services such as DNS, SFTP, SMTP, and NTP.
• Minimum three years' experience in patch management with understanding of applying security updates to systems.

Responsibilities

• Manage, maintain, deploy, troubleshoot, and support servers for a mixed customer environment.
• Plan, execute, and implement new system hardware/software and create technical instructions.
• Monitor and tune system performance and report on security and operational status.

Skills

Active DoD Secret Security Clearance

CompTIA Security+

Experience in Computer Science or IT

Unix/Linux Systems Administration

Patch Management

Network Troubleshooting

Command Line Management

SOP Creation

Key Services Configuration

Interpersonal Skills

Education

Bachelor’s degree in computer science or equivalent experience

Job description

Senior UNIX/Linux System Engineer

Position is contingent upon contract award and funding. Entarian is looking for a Senior UNIX/Linux System Engineer for a mixed and growing environment of Red Hat Enterprise Linux, Oracle Enterprise Linux, and Solaris UNIX.

Job Details

Job ID: 2025-9136

Type: Full Time W/Benefits Ret Match

Primary Location: US-VA-Radford

Secondary Location: US-NC-Ft. Bragg

Security Clearance: Secret

Responsibilities

• Working with the existing UNIX/Linux team to manage, maintain, deploy, troubleshoot, and support servers for a mixed customer environment
• Planning, executing, and implementing new system hardware and software and creating and maintaining team technical instructions, operating procedures, and policies as needed
• Monitoring and tuning system performance, ongoing operation of the servers, hardening of the servers, and reporting of the overall security and operational status
• Recommend improvements to the enterprise and manage new SW/HW integrations when required while also providing utilization reports using existing tools to identify problems and corrective actions as needed
• Excellent communication and team skills
• Provide support toward the lifecycle of a mixed environment of vendor equipment in the data center to include firmware version control and periodic preventive maintenance
• Be able to recommend, demonstrate, and implement technologies to help expand, upgrade, and increase efficiency in the current environment

Salary

Salary range: $100,000.00 - $140,000.00

Minimum Qualifications

• Active DoD Secret Security Clearance
• CompTIA Security+
• Experience in Computer Science or IT
• Computing Environment (CE) Certification (i.e., RedHat) – can be waived for 30 days after project join date
• Minimum five years’ experience as a Unix/Linux Systems Administrator or IT Engineer with experience in automating assigned tasks
• Minimum three years’ experience in patch management with understanding of applying security updates to systems via YUM and RPM
• Minimum three years’ experience working in an environment with complex networks, demonstrating experience using VLANs, troubleshooting tools such as ifconfig, netstat, ssh and telnet, and hardening a system using firewalld/iptables and hosts
• Minimum three years’ experience managing a large pool of local users through the command line
• Minimum three years’ experience creating, maintaining, and following Standard Operating Procedures for repeatable processes, disaster recovery, and common problem resolution
• Minimum three years’ experience configuring and maintaining key services such as DNS, SFTP, SMTP, and NTP
• Strong interpersonal skills and willingness to be a team player

Desired Qualifications

• Bachelor’s degree in computer science or equivalent years of experience
• Minimum three years’ experience with SELinux – understand the basic and advanced management and configuration of SELinux
• Experience supporting Cybersecurity patch management and STIG, SRG, RMF, SCA-V, and CORA
• Experience deploying large‑scale hardware and software system enhancements and/or upgrades for an organization with widely distributed geographic sites
• Experience with current and emerging network and infrastructure management technologies and business practices

Entarian is an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.