Linux Senior System Administrator

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Secret

Clearance Level Must Be Able to Obtain:

Secret

Suitability:

Public Trust/Other Required:

None

Job Family:

Systems Administration

Job Qualifications:

Skills:

Certifications:

Red Hat Certified System Administrator (RHCSA) - Red Hat, Security+, CE - CompTIA - Security+ CE - CompTIA, CompTIA

Experience:

US Citizenship Required:

Yes

Job Description:

We are GDIT. We stay at the forefront of innovation to solve complex technical challenges.

GDIT is your place. Make it your own by discovering new ways to apply the latest technologies securely and expertly. Own your opportunity at GDIT and you’ll be a meaningful part of improving how agencies operate.  Our work depends on a Linux System Administrator joining our team to support the Guard Enterprise Cyber Operations Support (GECOS) program in Falls Church, VA.

This is an IT Service Management contract in support of the operation, modernization, expansion, and further evolution of the ARNG’s global Information Technology (IT) services including networking, compute, storage, infrastructure, applications, hosting, and program management services.  The GECOS program supports the ARNG enterprise IT infrastructure, its Wide Area Network (WAN), authentication and directory services, cybersecurity, application hosting, and associated services. GECOS uses ITIL best practices framework as the basis for IT Service Management (ITSM) model.

To be successful in this position you need to be collaborative and willing to work within a team. While you will need to be a self-starter completing tasks on your own, working together is critical in this role. You will be interfacing with the client and senior staff. Therefore, you should be articulate in your communications because your opinion matters. You will need to explain technical intricacies in a way that is easily understood.

HOW A LINUX SYSTEM ADMINISTRATOR 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 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.

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:

• 10+ years of overall demonstrated expe