Linux Administrator - Secret Clearance Required

General Dynamics - IT; Falls Church (VA); On-site; USD 95,000 - 130,000; Full time

Job summary

General Dynamics - IT is seeking a Linux Administrator to support the Infrastructure Management Monitoring Team in Falls Church, VA. The role focuses on maintaining Linux environments, applying patches, and ensuring system integrity in a mission-driven setting.

The ideal candidate will have 8+ years of RHEL experience, strong automation skills (Ansible/Puppet/Chef), and the ability to work with senior leaders. A Secret clearance is required for this position in Falls Church.

Qualifications

• 8+ years of experience with RHEL 7/8 servers.
• Experience with NFS/CIFS/SMB permissions.
• Hands-on automation with Ansible, Puppet, Chef.
• Strong Linux internals and TCP/IP knowledge.

Responsibilities

• Provide Linux server administration, patching, and monitoring.
• Analyze and resolve OS, hardware, and app issues.
• Perform backups, STIG implementation, and security updates.
• Document procedures and coordinate with data center teams.
• Develop and run automation scripts for operations.

Skills

RHEL 7/8 administration

Automation scripting

System monitoring

Troubleshooting

Shell scripting (Bash, Python, Ruby,,)

Education

High school diploma or AA

Bachelor's degree in IT/CS or related

Tools

Ansible

Puppet

Chef

Job description

Linux Administrator We are seeking a Linux Administrator to support the Infrastructure Management Monitoring Team in Falls Church, Virginia. This role is critical to maintaining and supporting Linux operating systems. The ideal candidate is a proactive problem solver who thrives in a dynamic, mission-driven environment and can engage confidently with senior military and government leadership.

HOW A LINUX ADMINISTRTAOR WILL MAKE AN IMPACT:

• Provide system administration support for Linux operating systems including installing software, applying patches, managing file systems, monitoring performance, and troubleshooting alerts from monitoring tools.
• Analyzes and resolves problems associated with the operating system, servers, hardware, and applications software.
• Detects, diagnoses, and reports related problems on servers, including system failure analysis and recovery, insuring the consistency and integrity of file systems.
• In-depth hardware configuration knowledge, shell programming expertise, and a solid understanding of standard concepts, practices, and procedures.
• Relies on experience and judgment to plan and accomplish goals, performs a variety of tasks, and works under general supervision.
• Responsible for daily monitoring of interface programs between multiple enterprise systems; review daily logs and ensure successful completion.
• Perform incremental and full cold backups/patching.
• Responsible for DoW Linux Security Technical Implementation Guides (STIGs).
• Provide performance metrics and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers.
• Provide general maintenance, upgrades, and new installation of servers and coordinate with data center personnel to execute.
• Document and generate business processes for day-to-day and emergency support procedures.
• Install, test, and verify Linux Security patches; coordinating, documenting requirements and timelines, and working closely with service owners.
• Perform systems security administration functions, including creation and maintenance of customer profiles and accounts.
• Responsible for creating and/or maintaining standard operating procedures for the Linux documentation library.
• Implement, configure, update, and maintain Ansible servers and scripts.
• Implement, configure, update, and maintain STIG Manager servers and scripts.
• Implement, configure, update, and maintain the Linux operating system firewall.

WHAT YOU’LL NEED TO SUCCEED:

Education/Equivalent Training Required:

High school diploma or AA.

Preferred:

Bachelor’s degree in information technology, computer science or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.

Required Experience:

8+ years of overall demonstrated experience as a RHEL 7 and/or RHEL 8 Servers.

Required Technical Skills Requirements:

• Experience administering RHEL 7/8 Linux servers and applying Linux best practices.
• Experience in handling NFS, CIFS, and SMB permissions.
• Strong Linux administration skills with knowledge of enterprise network architectures.
• Hands-on experience with automation/configuration tools (Ansible, Puppet, Chef).
• Skilled in scripting for automation (Bash, Ruby, Python, Perl).
• Solid understanding of Linux internals (system calls, file systems, processes).
• Working knowledge of TCP/IP and related protocols (HTTP, FTP, NFS).
• Experience using PowerShell for task automation.
• Excellent problem-solving, analytical, and decision-making skills.
• Reliable and responsive, consistently meeting expectations and following direction.
• Strong customer service skills; able to engage senior military and government leaders.
• Able to present ideas clearly in briefings, meetings, and leadership interactions.
• Capable of delivering training sessions as needed.
• Experienced in coordinating with stakeholders to meet deadlines and objectives.
• Excellent communication and documentation abilities.
• Strong organizational, collaborative, and team-oriented mindset.
• Able to quickly absorb information and self-learn new requirements.
• Maintains current industry knowledge and professional certifications.
• Able to work under time constraints and adapt to changing requirements.
• Experience leading or managing teams.

Certification Requirements:

Must possess the appropriate baseline certification(s) to achieve DoW 8570.01-M Information Assurance Technical (IAT) Level II (CompTIA Security+ ce) and additional Computing Environment (CE) certification (RHEL7 and/or RHEL 8).

When 8140 requirements are implemented on program/contract, employee will need to conform to 8140 certification standards.

Security Clearance Level Requirements:

Must have a minimum of an active Secret clearance at time of interview and candidate must maintain active clearance.

Location:

Falls Church, Virginia.

Travel:

Up to 10%. Travel may include attending conferences up to two times annually and site visits as needed.

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