Tier II Linux Administrator - TS/SCI with Polygraph

General Dynamics Information Technology, Inc.; Springfield (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

General Dynamics Information Technology, Inc. is seeking a Tier II Linux Administrator to support a Federal intelligence contract in Springfield, VA. The role emphasizes maintaining large Enterprise environments and cross-platform systems administration.

The candidate will work with Windows and Linux infrastructure, require TS/SCI with Polygraph, and hold applicable DoD IA certifications. A strong emphasis on incident resolution, proactive monitoring, and collaboration with distributed teams is

Qualifications

• 5+ years of related systems administration experience TS/SCI with Polygraph is required.
• DoD IA Certification (e.g., Security+ CE, SSCP, or CCNA-Security) required or attainable.
• DoD 8570 CE Training within six months of hire.

Responsibilities

• Provide Tier II support for Windows and Linux environments across enterprise systems.
• Troubleshoot incidents and implement short-term workarounds and long-term solutions.
• Collaborate with Tier 2/3 teams across geographically dispersed sites.
• Communicate effectively with diverse team members in oral and written form.
• Participate in special projects as needed.

Skills

Linux Environments

Red Hat Enterprise Linux (RHEL)

System Administration

Windows Administration

Security Certification Awareness

Education

Bachelor's Degree in Computer Science or related

Tools

Active Directory

DNS

DHCP

Samba

NFS

VMware

Job description

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux Environments, Red Hat Enterprise Linux (RHEL), System Administration Certifications: None Experience: 5 + years of related experience US Citizenship Required: Yes

Job Description

Seize your opportunity to make a personal impact as an Tier II Linux Administrator supporting our intelligence customer. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career. At GDIT, people are our differentiator. As an Systems Administrator will help ensure today is safe and tomorrow is smarter. Our work depends on a TS/SCI cleared professional joining our team to support or intelligence customer in Springfield, VA. General Dynamics Information Technology (GDIT) is seeking an IT Engineer with Microsoft Enterprise Systems Administrator Advisor or Red Hat Enterprise Linux (RHEL) experience to join our team in support of a Federal Intelligence Agency contract. In addition to receiving a competitive salary and generous health and personal benefits, the IT Engineer will enhance their skill set among a talented and technically accomplished group of colleagues. Primary responsibilities include providing Tier II support maintaining multiple large Enterprise environments. The supporting infrastructure includes multiple Microsoft based networks spanning multiple security enclaves within a hybrid (Windows & RHEL) operating environment.

Job Responsibilities & Duties

• System Administrative Advisory duties to include management of both physical and VDI based Windows and Linux workstations
• Troubleshoot user, workstation and application functionality, performance and incident resolution for both Linux and Windows based applications
• Identifies, analyzes, and resolve incidents with both short-term workarounds and long-term solutions
• Provide remote end user support and remotely work with geographically disperse Tier 2 and Tier 3 team members
• Communicate effectively (in oral and written form) with a variety of individuals and team members in both small and large team environments
• Willingness to participate in special projects as needed

WHAT YOU’LL NEED TO SUCCEED

• Bachelors Degree in Computer Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
• 5+ years of related systems administration experience TS/SCI with Polygraph is required.
• Candidate must possess an appropriate and current DoD Information Assurance (IA) Certification to be considered for employment; either valid CompTIA Security+ CE, Systems Security Certified Practitioner (SSCP) or Cisco Certified Network Associate (CCNA)-Security. CompTIA Security+ CE Certification is the preferred certification.
• In addition, candidate must attain the required DoD 8570 Computing Environment (CE) Training within six (6) months of Hire Date.
• Successful candidates are expected to have related experience and knowledge/understanding of:
  • Active Directory Administration DNS, DHCP, DFS, LDAP in a Windows or Linux environment
  • Windows 10, Server 2012, Server 2016
  • Application Troubleshooting such as Outlook, Excel, Word, JAVA, Internet Explorer, Firefox
  • Linux Operating system as a server or desktop (RHEL 6/7/8, CentOS 6/7/Stream, Scientific Linux 6/7, Fedora)
  • Understanding of Samba and NFS file sharing protocols
  • Understanding of ServiceNow, NETS or other ticketing process ITIL v3 or higher
• The following knowledge/skill set is not required but is a plus:
  • Microsoft System Center Configuration Manager PowerShell
  • Virtualization Environments (VMware, Citrix)
  • Profile management utilizing the VMware User Experience Management (UEM) toolset
  • Microsoft Exchange Telephone/Video support
  • Networking Familiarity with site specific customer and mission
  • Linux scripting (Python, Perl, Ruby, Bash)
  • Gnome and KDE desktop environments
  • Puppet or Ansible experience
  • Linux Kickstart Red Hat Satellite or Foreman/Katello
  • Dell/EMC Isilon and Netapp storage appliances
  • Experience with monitoring tools like SCOM, Zabbix or Nagios
  • DoD STIG hardening
  • Containerization