Systems Administrator

Description
Must have a TS/SCI FS Poly
Job responsibilities will include, but not be limited to, the following:
Perform as a Linux System Administrator on large government contracts.
Perform administration on VMware technologies (or related)
Maintain smooth operation of multi-user computer systems, including coordination with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.
Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.
Provide backup and recovery services; manage file systems and disk space; manage virus protection on a routine basis.
Create and maintain user and computer accounts and modify file permissions and security access lists.
Test new releases of products to ensure compatibility and minimize user impact.
Develop and document technical processes and procedures as needed.
Interact, meet, discuss, and troubleshoot issues with vendors; evaluate vendor products, services, and suggestions.
Adhere to strict Information Systems security guidelines in all cases.
Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).
Prepare security documentation for Cyber Security team.
Skills
linux, stig, SSO, VMware, esxi, Active directory, System administrator, Windows, Server administrator
Top Skills Details
linux,stig,SSO,VMware,esxi,Active directory,System administrator
Additional Skills & Qualifications

Preferred Qualifications
Higher degree in a STEM-related discipline
Security+ CE
5+ years of experience with Red Hat Enterprise Linux (RHEL) server administration in an SCI classified environment
Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments

Experience with NAS storage device (preferably Net App) administration (ONTAP 8.x or higher; CDOT)
Solid understanding of Enterprise-level storage concepts to include all commonly used RAID-levels
Solid understanding of remediating security vulnerabilities;
Experience hardening Linux systems in accordance with RMF and STIGs
Identity Management (Single Sign-On) experience
VMware and ESXi (6.x or higher) configuration and management experience

Experience with host-based firewall implementations and configuration (Redhat "iptables")
Windows 10 administration experience;
Windows Server experience;
Group Policies (GPOs) experience;
Active Directory management experience
Solid writing skills and use of Wiki pages and Sharepoint sites for documentation
DoD 8570 Certification in a primary OS (Windows, Linux, Cisco)
Experience in VMWare, Net App and Splunk among other industry standard technologies. Comfortable with maintenance and OS upgrades
Preferred candidate will be familiar with Tenable and Nessus scans for vulnerability and controls implementation.
Experience Level
Intermediate Level
Job Type & Location
This is a Contract position based out of Aurora, CO.
Pay and Benefits
The pay range for this position is $50.00 - $70.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the 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)
Workplace Type
This is a fully onsite position in Aurora,CO.
Final date to receive applications
This position is anticipated to close on Mar 12, 2026.
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