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Added 1 min ago
NI
Software Engineer, SME
Navstar Inc.
Chantilly, VA
- $190,000 to $240,000 USD / year
Navstar is seeking an experienced, hands-on SME Software Engineer to support an exciting new greenfield software development effort hosted within an AWS cloud environment. The selected…
Added 1 min ago
NI
Software Security Engineer - DevSecOps, SME
Navstar Inc.
Chantilly, VA
- $190,000 to $240,000 USD / year
Navstar is seeking an experienced, hands-on Software Security Engineer to design, develop, and implement secure software solutions supporting an enterprise AWS cloud migration and…
Added 1 min ago
NI
Cloud Architect & Engineer, SME
Navstar Inc.
Chantilly, VA
- $190,000 to $240,000 USD / year
Navstar is seeking an experienced, hands-on Cloud Architect / Cloud Engineer to design, build, and maintain secure, scalable AWS cloud infrastructure supporting an enterprise cloud…
Added 1 min ago
Product Engineer, Freight Tech
Ally Logistics
Grand Rapids, MI
Our Product Solutions team is looking for a Product Engineer to drive internal product outcomes across the business. This role sits at the intersection of business strategy and technical…
Added 1 min ago
SG
Operation research engineer
Syngenta Group
Malta, IL
- $106,000 to $197,600 USD / year
…Analytics & Data Sciences Team is seeking an Operations Research Engineer in Malta, IL. This role will drive operational efficiency and decision quality across Seeds Research & Development…
Added 1 min ago
Senior Presales Systems Engineer - HPE Networking
Hewlett Packard Enterprise
San Diego, CA
We are seeking a Senior Presales Systems Engineer with deep expertise in networking, security, cloud architecture, and automation to support enterprise and federal customers across complex…
Added 1 min ago
Systems Analyst (Site Reliability Engineer) On-Sire, Oak Ridge, TN
Hewlett Packard Enterprise
All, TN
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Added 1 min ago
Systems Analyst (Site Reliability Engineer) On-Site, Oakridge, TN
Hewlett Packard Enterprise
All, TN
We are seeking a skilled Systems Analyst Site Reliability Engineer at HPE to support Oak Ridge National Labs in a security area that that requires a DOE Q clearance for access. This is a…
Added 1 min ago
Presales Consultants
Hewlett Packard Enterprise
Sunnyvale, CA
The Presales Systems Engineer plays an important role in supporting the sale and adoption of advanced networking and security solutions. This position combines technical networking…
Added 1 min ago
Senior Presales Systems Engineer
Hewlett Packard Enterprise
Frisco, TX
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Added 2 mins ago
Senior Mechanical Engineer
Cubic Defense Applications, Inc.
Orlando, FL · San Diego, CA
Job Summary: Cubic Defence Senior Mechanical Engineer role contributes mechanical engineering into multi-disciplinary product development teams. The Senior Mechanical Engineer is…
Added 3 mins ago
AI Software Engineer (TS/SCI)
Vantor Services Inc.
Herndon, VA · Westminster, CO
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Added 3 mins ago
Staff Antenna Design Engineer
ŌURA
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…award-winning products help our global community gain a deeper knowledge of their readiness, activity, and sleep quality by using their Oura Ring and its connected app. We've helped…
Added 3 mins ago
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Quality Engineer III
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San Diego, CA
- $100,000 to $125,000 USD / year
The Quality Engineer III creates various quality system documents including procedures and work instructions. Quality Engineer III will support a wide range of quality-related engineering…
Added 3 mins ago
Sr. SOC Engineer
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SOC Security Engineer
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Added 3 mins ago
Transportation Specialist
DEPARTMENT OF TRANSPORTATION
United States
Organization Name Chief Engineer, Director of Operations, District 4/ Stillwater
Added 4 mins ago
Transformer Engineer
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Principal Hardware-in-the-Loop Engineer (Closed)
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Added 4 mins ago
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Field Service Engineer II
Insight Global
Chandler, AZ
- From $28 USD / hour
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Added 4 mins ago
Senior Opto-Mechanical Engineer
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San Francisco, CA
As an Astranis Opto-Mechanical Design Engineer you will own the complete lifecycle of various opto-mechanical systems on our spacecraft. Whether it is incremental improvements or the…
Added 5 mins ago
Senior Construction Project Manager
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…experience working in 11 states, we have the resources and knowledge to complete projects of any scale. As a MasTec Company, we are poised for continued growth and an exciting…
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Equipment and Controls Technician – Portland, TN
Kinder Morgan
PORTLAND, TN
…Technician, Electrical and Instrumentation Technician (E&I Tech), Engineer, Controls, Compression Technician, Instrumentation Controls and Electric Tech, or similar. Experience working with…
Added 5 mins ago
SI
Software Engineering - Principal
Salesforce, Inc.
CA
- $197,300 to $344,700 USD / year
The software engineer role at Salesforce encompasses architecture, design, implementation, and testing to ensure we build products right and release them with high quality. Equally…

GD Information Technology, Inc.

Linux Systems Engineer

United States

The likely salary range for this position is $110,500 - $149,500.

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Job details

Pay: The likely salary range for this position is $110,500 - $149,500.
Experience: Experience: 5+ years of related experience
Posting language: English
Posted: Nov 3, 2026

Original job description

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, Linux, Linux Server, RedHatCertifications:

NoneExperience:

5 + years of related experienceUS Citizenship Required:

Yes

Job Description:

Advance how our customers operate while you advance your career. Join GDIT as a Senior Linux Systems Engineer 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 Senior Linux Systems Engineer, 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 Senior must have:

Certification: Applicable DoW 8140 or DoW 8570 Certification
Experience: 5+ years of related experience
Required skills:
Demonstrated proficiency administering Red Hat and CentOS Linux systems in enterprise environments.
Strong experience building, deploying, and maintaining Linux server infrastructures.
Expertise in system performance tuning, availability management, and security hardening.
Experience implementing patches, updates, and configuration changes in controlled environments.
Ability to troubleshoot and resolve complex systems issues under operational constraints.
Strong documentation skills for system configurations, procedures, and troubleshooting guides.
Proven ability to work collaboratively across multiple IT disciplines.
Desired Skills:
Red Hat Certified System Administrator (RHCSA) or higher
ITIL 4 Foundation Certification
Experience supporting USCENTCOM environments and familiarity with mission systems and operational requirements.
Knowledge of enterprise-scale infrastructure operations.
Experience mentoring junior administrators and contributing to team development.
Security clearance level: TS/SCI
US citizenship required

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

#centcomcits #gditprioity

The likely salary range for this position is $110,500 - $149,500. 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:

Travel Required:

Less than 10%

Telecommuting Options:

Onsite

Work Location:

USA FL MacDill 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 encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as 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. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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