Senior Linux Administrator Team Lead

Job Qualifications

Critical Systems, Enterprise Systems, Software Updates, System Administration, Technical Issues

Regular – Type of Requisition.

Currently Must Have:
Secret | Must Be Able To Obtain:
Secret

None

IT Infrastructure and Operations

Critical Systems, Enterprise Systems, Software Updates, System Administration, Technical Issues

None

5+ years of related experience

Yes

• Provide system administration support for Linux operating systems including installing software, applying patches, managing file systems, monitoring performance, and troubleshooting alerts from monitoring tools.
• Analyze and resolve problems associated with the operating system, servers, hardware, and applications software. Detect, diagnose, and report related problems on servers, including system failure analysis and recovery, ensuring 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, perform a variety of tasks, and work 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 DoD 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.

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.

10+ years of overall demonstrated experience as a RHEL 7 and/or RHEL 8 server administrator.

• Experience managing RHEL 7 and RHEL 8 Linux servers.
• Highly versed in Linux administration and best practices.
• Familiar with enterprise network architectures.
• Experience with automated configuration management (Ansible, Puppet, Chef, etc.).
• Familiar with programming/scripting skills for automation (Bash, Ruby, Python, Perl, etc.).
• General understanding of Linux internals (system calls, file systems, processes, etc.).
• General understanding of TCP/IP and related protocols (HTTP, FTP, NFS, etc.).
• Experience with Power Shell scripting engine to automate tasks.
• Excellent problem solving, analytical, and decision‑making capabilities, including understanding user requirements, troubleshooting technical issues, successfully resolving issues and challenges, and developing creative solutions for process improvement.
• Dependability, consistent attendance, following instructions, responding to management direction, and soliciting feedback to improve.
• Must have customer service experience as this position will require engagement with senior military and government leadership.
• Must present ideas clearly through briefings, meetings, and interactions with leadership of different skill levels.
• Must provide…