Temporary Red Hat Amphitheater Jobs in Colorado (NOW HIRING)

****This position requires an active DoD Clearance (Top Secret/SCI with Full Scope Polygraph)**** ***Because an active DoD clearance is required, U.S. Citizenship is required*** TEKsystems is looking for a Systems Administrator for a large government integrator in Aurora, CO. 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. Top Skills' Details
1. 5+ years of experience with Red Hat Enterprise Linux (RHEL) server administration in an SCI classified environment
2. VMware and ESXi (6.x or higher) configuration and management experience
3. Group Policies (GPOs) experience; Active Directory management experience TS with SCI and Full Scope Polygraph REQUIRED
Must have a DOD 8570 IAT Level 2 baseline certification (example: Security+ CE, CISSP)
Ability to support after hours and on weekends as needed. 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 NetApp) 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, NetApp 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. **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) This job posting will end: 4/17/26