Systems Administrator

Job Requirements Aurora, CO Top Secret/SCI Full Scope Polygraph Career Level not specified $100,000 - $200,000 Job Description Systems Administrator (TS/SCI w/ Full Scope Poly)

Clearance:

Top Secret with SCI eligibility and Full Scope Polygraph - Required Overview We are seeking an experienced Linux Systems Administrator to support large-scale government programs in a highly classified environment. This role involves administering enterprise Linux and virtualized systems while adhering to strict cybersecurity and compliance standards. You will work with cutting-edge technologies alongside a highly skilled team supporting critical national security missions. Required Skills & Qualifications Active TS/SCI with Full Scope Polygraph 5+ years of Red Hat Enterprise Linux (RHEL) administration in an SCI-classified environment VMware vSphere / ESXi 6.x or newer configuration and management experience Active Directory administration and Group Policy (GPO) experience DoD 8570 IAT Level II certification (e.g., Security+ CE, CISSP) Ability to support after-hours and weekend operations as required Primary Responsibilities Perform Linux System Administration on large government contracts Administer and support VMware virtualization technologies Maintain reliable operation of multi-user systems in coordination with: Network, software, and system engineers Desktop technicians Project managers, end users, and IT leadership Recommend and implement system enhancements to improve performance, reliability, and security Perform system patching, upgrades, monitoring, troubleshooting, and configuration management Manage backups, recovery operations, file systems, disk space, and virus protection Create, modify, and maintain user and computer accounts, permissions, and access controls Test and validate new software releases to ensure compatibility and minimize user impact Develop and maintain technical documentation, processes, and procedures Interface with vendors to troubleshoot issues and evaluate products and services Ensure compliance with all Information Systems Security requirements Maintain security audit logs per ISSM direction Prepare required security documentation for Cybersecurity teams Nice‑to‑Have / Preferred Qualifications Degree in a STEM-related discipline Experience operating within NISPOM Chapter 8, RMF, ICD 503, DCID 6/3, JAFAN, or

JSIG NAS

storage administration experience (preferably NetApp ONTAP 8.x+ / CDOT) Enterprise storage knowledge including RAID architectures Linux hardening and vulnerability remediation using STIGs and RMF Host-based firewall configuration (e.g., iptables) Identity Management / Single Sign-On experience Windows 10 and Windows Server administration Experience with Splunk, Tenable, Nessus, VMware and NetApp maintenance and upgrades Strong documentation skills using Wiki and SharePoint Additional DoD 8570 certifications (Linux, Windows, or network platforms) Employee Value Proposition Join a large government integrator supporting critical national security missions in Denver, CO. Work in a classified environment leveraging cutting-edge technologies alongside experienced engineers and cybersecurity professionals. Pay and Benefits Eligibility requirements apply to some benefits and may depend on job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, benefits for this temporary role may include: Medical, dental, and vision insurance Critical Illness, Accident, and Hospital coverage 401(k) Retirement Plan (Pre‑tax and Roth post‑tax contributions available) Life Insurance (Voluntary Life & AD&D for employee and dependents) Short‑ and long‑term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off / Leave (PTO, Vacation, or Sick Leave) group id: 10105424 N Name Hidden Recruiter Apply now