Global Linux Systems Administrator - Security & Automation

Roka Security, LLC; Sterling (VA); On-site; USD 99,000 - 206,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) with company match

Paid time off and holidays

Ongoing technical training and certs

Job summary

Nightwing is seeking a qualified Linux Systems Administrator to support globally distributed, highly secure networks. You will manage Linux servers (Debian/Ubuntu), configure critical services (OpenVPN, DNS, LDAP, mail, Apache/Nginx), and perform performance tuning and disaster recovery tasks.

A security-minded, data-driven professional with TS/SCI and CI Poly is preferred. Responsibilities include monitoring, log analysis, patch management, and cross-team collaboration.

Qualifications

• Active TS/SCI with CI Polygraph.
• Associate or Bachelor’s degree in Computer Science, Information Technology, or related field; OR equivalent combination of technical training and hands-on experience.
• Proven experience managing and maintaining Linux servers (Debian, Ubuntu).
• Experience troubleshooting hardware and software issues in production environments.

Responsibilities

• Operate day-to-day Linux server installations and maintenance.
• Configure and maintain Linux services (OpenVPN, DNS, LDAP, mail, Apache/Nginx) and file systems.
• Monitor system performance, troubleshoot issues, and optimize resources for maximum uptime.
• Implement security hardening and patch management on Linux servers.

Skills

Linux administration

Networking concepts

Security concepts

CLI proficiency

Documentation

Problem solving

Communication

Team player

Fast-paced environment

Education

Bachelor's degree in CS/IT

Tools

SaltStack

Ansible

Nagios

Zabbix

Prometheus

Docker

Kubernetes

RHCSA/RHCE

Job description

Nightwing is seeking a qualified Linux Systems Administrator to support globally distributed, highly secure networks. You will manage Linux servers (Debian/Ubuntu), configure critical services (OpenVPN, DNS, LDAP, mail, Apache/Nginx), and perform performance tuning and disaster recovery tasks.

A security-minded, data-driven professional with TS/SCI and CI Poly is preferred. Responsibilities include monitoring, log analysis, patch management, and cross-team collaboration.