Linux Administrator - Secret Clearance Required

General Dynamics Information Technology • Falls Church, VA

3d • $127,500 - $172,500 • Hybrid

About The Position

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.

Requirements

• 8+ years of overall demonstrated experience as a RHEL 7 and/or RHEL 8 Servers
• Experience administering RHEL 7/8 Linux servers and applying Linux best practices
• 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
• 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.
• Must have a minimum of an active Secret clearance at time of interview and candidate must maintain active clearance.
• US Citizenship Required: Yes

Nice To Haves

• 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.

Responsibilities

• 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.
• 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.
• Experience in handling NFS, CIFS, and SMB permissions.

Benefits

• variety of medical plan options, some with Health Savings Accounts
• dental plan options
• a vision plan
• 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.
• full flex work weeks where possible
• a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: High school or GED