Linux Systems Administrator

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret

Clearance Level Must Be Able to Obtain:

Top Secret/SCI

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

CentOS, IT Troubleshooting, Linux, Red Hat Enterprise Linux (RHEL)

Certifications:

None

Experience:

5 + years of related experience

US Citizenship Required:

Yes

Job Description:

Advance how our customers operate while you advance your career. Join GDIT as a SME Linux Systems Administrator and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT:
As a SME Linux Systems Administrator , the work you’ll do at GDIT will be impactful to the mission of USCENTCOM. You will play a crucial role in configuration, maintenance, and optimization of Linux-based server environments supporting a large-scale enterprise infrastructure. This role supports mission-critical systems across an environment of more than 5,000 users, 1,000 servers, and 10,000 endpoints. The administrator will collaborate closely with other Enterprise Services teams to ensure system availability, performance, security compliance, and operational efficiency in support of USCENTCOM mission requirements.

Duties and Responsibilities

• Configure, deploy, and maintain Linux server environments, including physical and virtual systems.

• Administer Red Hat and CentOS Linux systems, ensuring stability, performance, and security compliance.

• Configure and manage Linux services such as Apache, Nginx, DNS, DHCP, LDAP, and related system services.

• Monitor system performance and availability, proactively identifying and resolving issues before they impact operations.

• Troubleshoot and resolve complex system issues, including problems without existing documented solutions.

• Implement system patches, updates, and security hardening in accordance with DoD and organizational policies.

• Manage SSL/TLS certificate lifecycle activities supporting Linux-based services.

• Collaborate with infrastructure, network, storage, and security teams to design and implement Linux-based solutions aligned with enterprise requirements.

• Participate in system upgrades, migrations, and the deployment of new Linux infrastructure components.

• Ensure incidents, problems, and service requests are tracked, prioritized, escalated, and resolved appropriately.

• Develop and maintain technical documentation, including system configurations, troubleshooting guides, and standard operating procedures.

• Produce reports and data sets to inform leadership of system performance, trends, and improvement opportunities.

• Provide technical mentorship and guidance to junior administrators and team members.

• Support projects focused on improving the security, efficiency, scalability, and resilience of Linux environments.

• Assist in developing and enforcing system policies and best practices.

• Participate in enterprise initiatives to modernize and standardize infrastructure services.

• Contribute to continuous improvement efforts across Enterprise Services teams.

WHAT YOU’LL NEED TO SUCCEED:
Bring your technology expertise and drive for innovation to GDIT. The Systems Administrator SME must have:

• Certification:
  Applicable DoD 8140 or DoD 8570 Certification (CompTIA Security + CE cert.)

• Experience:
  
  5+ years of related experience in Linux/Red Hat Systems Administration.

• Required skills:

• Desired
  
  Skills:

• Security clearance level: TS/SCI clearance is required

• US citizenship required due to the TS/SCI clearance requirement

• Must be able to work on site. Not a remote role.

GDIT IS YOUR PLACE :
At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• Growth: AI-powered career tool that identifies career steps and learning opportunities

• Support:
  An internal mobility team focused on helping you achieve your career goals

• Rewards:
  Comprehensive benefits and wellness packages, 401K with company match, competitive pay and paid time off

• Community:
  Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

#ARMA

#CENTCOM/CITS

The likely salary range for this position is $114,750 - $155,250. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

Less than 10%

Telecommuting Options:

Onsite

Work Location:

USA FL Mac Dill AFB

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and 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. To…