Linux Engineer - TS/SCI with Polygraph

Company: GD Information Technology
Location: Chantilly
Posted on: April 2, 2026

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 Ansible, System Administration Certifications: None Experience: 2 years of related experience US Citizenship Required: Yes Job Description: Primary responsibilities include providing engineering and administrative 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 Engineering duties include management of both physical and VDI based Linux workstations and servers Identify, design, and implement solutions using FOSS, COTS or GOTS products to enhance and meet customer requirements within the operating environment. Troubleshoot user, workstation and application functionality, performance, and incident resolution for Linux 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 and train 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: Education: Bachelor’s Degree in Computer Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience. Required Experience: 2 years of related Linux experience Certification: 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. Security Clearance Level: TS/SCI with Polygraph is required. Successful candidates are expected to have related experience and knowledge/understanding of: Linux Operating systems as a server or desktop such as Red Hat Enterprise Linux 7/8/9, CentOS 7/8/9/Stream, Scientific Linux, Fedora, Oracle Linux, Rocky Linux, Alma Linux, etc. Integration and experience with Kerberos Authentication concepts and/or Microsoft Active Directory domain joined servers and workstations is a plus (SSSD, WinBind, etc.) Strong understanding of DNS, DHCP and LDAP in a Windows or Linux environment Operating system deployment and Configuration Management via Satellite and/or Ansible Automation Platform Application Troubleshooting such as Firefox, Chrome, Java and/or Citrix based virtual applications such as Outlook, Excel, Word Understanding of SMB/CIFS and NFS file sharing protocols Linux scripting (Python, Perl, Ruby, Bash) Understanding of ServiceNow, NETS or other ticketing systems DoD STIG hardening ITIL v3 or higher The following knowledge/skill set is not required but is a plus: Gnome desktop environments Ability to create and deploy Ansible roles and playbooks Github or Gitlab Anaconda Kickstart Red Hat Satellite or Foreman/Katello CUPS print server RPM package repositories Demonstrated ability to build an RPM package Windows 10, Server 2012/2016/2019 PowerShell Virtualization Environments (VMware, Citrix) Cloud environments (AWS, Azure, Google Cloud) Profile management utilizing the VMware User Experience Management (UEM) toolset Containerization (Docker, Podman) Microsoft Exchange Telephone/Video support Networking Web Proxy Configuration (PAC files, etc.) Dell/EMC Isilon and Netapp storage appliances Experience with monitoring tools like Dynatrace, SCOM, Zabbix or Nagios Familiarity with site specific customer and mission Willingness to travel Location: On Customer Site US Citizenship Required GDIT IS YOUR PLACE: 401K with company match Comprehensive health and wellness packages Internal mobility team dedicated to helping you own your career Professional growth opportunities including paid education and certifications Cutting-edge technology you can learn from Rest and recharge with paid vacation and holidays GDITcareers OpportunityOwned WeAreGDIT transitioningmilitary clearedjobs veterans Autobots The likely salary range for this position is $102,000 - $138,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: None T elecommuting Options: Onsite Work Location: USA VA Chantilly Additional Work Locations: Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Keywords: GD Information Technology, Reston , Linux Engineer - TS/SCI with Polygraph, IT / Software / Systems , Chantilly, Virginia