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Senior Linux System Administrator Jobs in Florida

Systems Administrator Senior

Mary Esther, FL · On-site

$78K - $106K/yr

... Linux, System Administration Certifications: None Experience: 3 + years of related experience US ... Location Onsite - Mary Esther, FL Responsibilities As a Systems Administrator Senior, you will ...

Sr System Administrator Overall Responsibility: We are seeking an experienced Systems Administrator ... Demonstrated experience with Linux server management, troubleshooting, and performance tuning.

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Systems Administrator (AWS | Windows Server | Azure) Location : Tallahassee, FL (100% Onsite ... Azure DevOps * Linux (RedHat/Ubuntu) * Microsoft 365 Administration * GCP * API Management

Linux Systems Administration Job Code: 38013 Job Location: Melbourne, FL Job Schedule: 5/8: ... We are seeking an experienced Systems Administrator to join our team. The successful candidate will ...

Strong Linux Administration experience ( RedHat and Ubuntu ) * Knowledge of networking fundamentals , including TCP/IP and DNS * Experience with system monitoring, troubleshooting, performance tuning ...

Position System Administrator * Location: Eglin AFB, Florida * Security Clearance: Active Secret ... Basic knowledge of Linux administration. * Understanding of Networking fundamentals (TCP/IP, DNS ...

Administer, troubleshoot, and optimize Linux servers, ensuring high availability, security, and ... Monitor system performance, analyze logs, perform tuning, and conduct proactive maintenance to ...

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Administer, troubleshoot, and optimize Linux servers, ensuring high availability, security, and ... Monitor system performance, analyze logs, perform tuning, and conduct proactive maintenance to ...

Showing results 41-60

Senior Linux System Administrator information

See Florida salary details

$16.4K

$95.1K

$133.4K

How much do senior linux system administrator jobs pay per year?

As of Aug 9, 2026, the average yearly pay for senior linux system administrator in Florida is $95,076.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $112,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior Linux system administrator?

To thrive as a Senior Linux System Administrator, you need deep expertise in Linux/UNIX system administration, scripting, networking, and troubleshooting, typically backed by several years of industry experience and a relevant degree or certifications like RHCE or CompTIA Linux+. Proficiency with tools such as Ansible, Puppet, Docker, and monitoring platforms, as well as experience with cloud environments, is highly valued. Strong problem-solving abilities, communication skills, and the capacity to mentor junior team members are crucial soft skills. These abilities are essential for ensuring reliable system uptime, seamless team collaboration, and effective response to complex IT challenges.

What is a senior Linux system administrator?

A Senior Linux System Administrator is responsible for managing, configuring, and maintaining Linux-based systems and servers. They handle system performance tuning, security hardening, troubleshooting, and automation through scripting and configuration management tools. Additionally, they oversee backups, software updates, and infrastructure reliability. This role often involves mentoring junior administrators and collaborating with development and IT teams to support business operations.

What are the typical daily responsibilities of a senior Linux system administrator?

Senior Linux System Administrators are responsible for managing, maintaining, and optimizing Linux-based servers and infrastructure. Their daily tasks often include monitoring system performance, managing user permissions, applying security patches, automating processes through scripting, and troubleshooting technical issues. They regularly collaborate with developer, security, and operations teams to support new deployments and ensure system reliability. Additionally, they may mentor junior administrators and contribute to designing infrastructure improvements, making this a dynamic and influential role within IT operations.

What are the most commonly searched types of Linux System Administrator jobs in Florida? The most popular types of Linux System Administrator jobs in Florida are:
What job categories do people searching Senior Linux System Administrator jobs in Florida look for? The top searched job categories for Senior Linux System Administrator jobs in Florida are:
What cities in Florida are hiring for Senior Linux System Administrator jobs? Cities in Florida with the most Senior Linux System Administrator job openings:
What are popular job titles related to Senior Linux System Administrator jobs in FL? For Senior Linux System Administrator jobs in FL, the most frequently searched job titles are:
Infographic showing various Senior Linux System Administrator job openings in Florida as of August 2026, with employment types broken down into 82% Full Time, 2% Part Time, and 16% Contract. Highlights an 86% In-person, and 14% Remote job distribution, with an average salary of $95,076 per year, or $45.7 per hour.

Systems Administrator Senior

GDIT

Mary Esther, FL • On-site

$78K - $106K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 9 days ago


General Dynamics Information Technology rating

7.8

Company rating: 7.8 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

88th of 223 rated it services


Job description

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Interim Secret

Clearance Level Must Be Able to Obtain:

Secret

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Critical Systems, Information Technology (IT) Systems, Linux, System Administration

Certifications:

None

Experience:

3 + years of related experience

US Citizenship Required:

Yes

Job Description:

Overview

GDIT/ARMA-Global is currently pursuing a qualified candidate to serve as a Systems Administrator Senior supporting the sustainment of critical technologies for our customers.

Company Overview

GDIT/ARMAGlobal is a fullservice integrator delivering a wide range of Information Technology services to Government and Commercial clients. We bring extensive experience in overseeing the design, implementation, execution, and sustainment of domestic and international programs, emphasizing nofail mission support. GDIT/ARMAGlobal prides itself on providing creative solutions to client challenges through talent and expertise committed to customer success.

Location

Onsite - Mary Esther, FL

Responsibilities

As a Systems Administrator Senior, you will support customer mission objectives by administering, maintaining, and troubleshooting client systems in support of realtime operational requirements. You will collaborate with a multidisciplinary team to deliver resilient and secure system sustainment services that enhance enterprise operations.

You'll be critical to executing solutions in support of customer outcomes. Specifically, you'll be:

  • Staying current on new technology platforms, software, tools, and capabilities that improve efficiency and reduce cost while supporting service expansion and customer mission needs

  • Supporting project milestones and providing handson technical development, integration, implementation, and sustainment of mobile device services

  • Supporting the execution of approved technology strategies and fostering productive partnerships that deliver resilient, highly available mobile management solutions

Role-Specific Knowledge Skills and Abilities:

  • Experience supporting or administering TAK systems, including TAK Server and TAK clients (ATAK, WinTAK, WebTAK)

  • Ability to install, configure, update, and maintain TAK Server components, plugins, data services, and federated connections

  • Experience troubleshooting TAK connectivity, network replication, data feeds, plugin behavior, and certificatebased authentication issues

  • Knowledge of TAK user management, group structures, rolebased access, datasharing configuration, and mission package deployment

  • Ability to support TAK integration with external systems, services, or data sources (e.g., mapping sources, location feeds, mission data inputs)

  • Ability to diagnose TAK client performance issues and provide Tier2 support to users operating TAK in missionfocused environments

  • Familiarity with operational workflows where TAK is used for situational awareness, collaboration, and mission execution

  • Experience creating, maintaining, or updating TAK configuration documentation, SOPs, checklists, or missionsupport artifacts

  • Linux administration experience including navigating the command line, installing packages, managing services, handling permissions, performing log analysis, and troubleshooting Linux client systems

  • Understanding of Windows workstation administration including profiles, policies, and application support

  • Experience supporting system and application issues across distributed operational environments and remote users

  • Understanding of IT fundamentals including networking basics, authentication, hardware peripherals, virtualization, and storage concepts

  • Experience with Active Directory for user and device management

  • Ability to work independently or collaboratively in fastpaced operational settings

  • Strong communication skills with the ability to explain technical concepts to users with varying technical backgrounds

  • Patience, professionalism, and a customerservice mindset when engaging with users

  • Selfmotivated, adaptable, and capable of responding quickly to operational requirements including oncall support

Security Requirements

  • Must have a SECRET clearance with the ability to obtain an SCI (TS/SCI)

Physical Demands

  • Lift over 35 LBS

Work Environment

  • Work is primarily performed in an administrative office environment

Education, Certification and Experience Requirements

  • BS in a related technical discipline or equivalent related experience plus required experience

  • 3+ years of combined DoW and/or Commercial industry IT service experience

  • 2+ years of Linux systems administration experience

  • 2+ years using and supporting Windows operating systems

  • Experience supporting client systems in enterprise or missionfocused environments

  • Certifications;

    • Current DoD 8570.01-M IAT Level II certification (Sec+ CE or equivalent) Required

    • Linux+ Desired

    • Amazon Web Services Certified Solutions Architect (Associate or Professional) Desired


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, and 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.

The likely salary range for this position is $89,250 - $120,750. 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:

None

Telecommuting Options:

Onsite

Work Location:

USA FL Mary Esther

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 at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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About General Dynamics Information Technology

Sourced by ZipRecruiter

GDIT is 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. Its 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber, and application development.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US