Linux Administrator - Secret Clearance Required

GD Information TechnologyFairview Park, OH
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

  • Secret clearance required.
  • US Citizenship Required.
  • 6 + years of related experience.
  • High school diploma or AA.
  • 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.
  • Must have a minimum of an active Secret clearance at time of interview and candidate must maintain active clearance.
  • 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.

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.
  • Experience leading or managing teams.

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.
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