Senior Systems Administrator Jobs in Florida
Senior Systems Administrator jobs in Florida are in strong demand, with active hiring across financial services, healthcare, defense contracting, and tourism technology companies at every level from mid-career to principal engineer. The largest concentrations of openings are in Tampa, Miami, and Orlando, where established employers like Lockheed Martin, AdventHealth, and Citigroup maintain significant operations and rely heavily on senior infrastructure talent. The most sought-after specializations in Florida include cloud infrastructure management, virtualization, Active Directory, and network security hardening. Find a role that fits below and apply directly.
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ARMA, a GDIT company, supports some of the most complex programs within Special Operations Forces (SOF).
Software Updates
System Configuration
System Optimization
Technical Support
Troubleshooting
REQ#: RQ228529
Public Trust: None
Requisition Type: Regular
Your Impact
Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.
Job Description
As a Cybersecurity Systems Administrator, the work you’ll do at GDIT will be impactful to the mission of UISCENTCOM. You will play a crucial role in provide cyber technical support for Cyber Operations Security Operations Center (CSOC). Support will consist of configuring, tuning, optimizing, and maintaining critical security infrastructure to safeguard the organization's digital assets against evolving cyber threats. You'll be responsible for overseeing the operation and maintenance of essential cybersecurity systems, including Security Information and Event Management (SIEM), Endpoint Detection Response (EDR) systems, network access control (Comply-to-Connect), and Security Orchestration, Automation, and Response (SOAR) platforms.
Responsibilities:
Configuration and Optimization:
Collaborate with cybersecurity stakeholders to define and implement effective configurations for SIEM, EDR, and network access control solutions.
Customize and optimize alert rules, correlation searches, and detection mechanisms within SIEM to align with security requirements and organizational objectives.
Deploy new SIEM instances including clustered deployments and apps.
Fine-tune EDR policies, rulesets, and scanning parameters to enhance endpoint visibility and threat detection capabilities.
Configure network access control policies for the comply-2-connect solution to enforce security posture and mitigate risks associated with unauthorized devices.
Ability to support Linux environment, editing and maintaining Splunk configuration files and apps.
Work with other Cybersecurity Engineering team members and will be required to interact with end users to gather requirements, perform troubleshooting, and provide assistance with the creation of Splunk search queries and dashboards.
Integrate cyber tools with variety of legacy data sources.
Maintenance and Support:
Conduct routine maintenance tasks, such as software updates, patches, and performance tuning, to ensure the reliability and efficiency of cybersecurity systems.
Provide timely support and troubleshooting assistance to address issues and incidents related to SIEM, EDR, C2C, and SOAR platforms, collaborating with vendors or higher-level support as necessary.
Perform regular system audits and health checks to identify vulnerabilities, misconfigurations, or performance issues, implementing corrective actions as needed.
Provide occasional presentations of tool capabilities to leadership
Policy Development and Compliance:
Develop and enforce configuration standards, security policies, and operational procedures for cybersecurity systems, ensuring compliance with regulatory requirements and industry best practices.
Monitor compliance with security policies and regulations through audits, assessments, and reporting activities, taking corrective actions to address any deviations or gaps.
Collaborate with compliance and audit teams to streamline regulatory compliance efforts and demonstrate adherence to security standards.
Integration and Automation: Integrate cybersecurity systems with other security controls, data sources, and IT infrastructure components to create a cohesive security ecosystem.
Develop and maintain automation scripts, playbooks, and workflows within the SOAR platform to automate routine tasks, orchestrate incident response processes, and enhance operational efficiency.
Explore opportunities for innovation and continuous improvement by leveraging automation, orchestration, and integration with emerging technologies and industry trends.
Training and Knowledge Sharing:
Provide training sessions and document processes to empower internal teams with the knowledge and skills required to effectively utilize cybersecurity systems.
Share expertise, best practices, and lessons learned with colleagues through formal and informal channels, fostering a culture of collaboration and knowledge sharing within the cybersecurity team.
WHAT YOU’LL NEED TO SUCCEED
Bring your cyber expertise and drive for innovation to GDIT. The Information Security Analyst Principal must have:
Education: Bachelor’s degree in Information Systems, Computer Science, Computer Engineering, or another related field
Certification: Applicable DoD 8140 or DoD 8570 Certification
Experience: 5+ years of related experience
Technical skills:
Proficiency in Linux environments, including system administration tasks and shell scripting for automation and customization.
Solid understanding of cybersecurity principles, threat landscapes, and best practices for configuring and tuning security tools.
Strong analytical skills and attention to detail, with the ability to troubleshoot complex technical issues and optimize system performance.
Excellent communication and collaboration skills, with the ability to interact effectively with technical and non-technical stakeholders.
Demonstrated ability to work independently, prioritize tasks, and meet deadlines in a dynamic and fast-paced environment.
Desired Skills:
Prior CENTCOM/COCOM experience
Previous SOC experience is a plus
Previous cyber system administration is a plus
Linux experience
Security clearance level: TS/SCI
US citizenship required
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
#gditpriority
#armajobs
#centcomcits
Work Requirements
5 + years of related experience
- may vary based on technical training, certification(s), or degree
CompTIA Security+ CE | CompTIA - CompTIA
Less than 10%
U.S. Citizenship Required
Salary and Benefit Information
The likely salary range for this position is $102,000 - $138,000. 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.
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
See All 30 Senior Systems Administrator Jobs in Florida
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Where Florida roles are concentrated, by current openings.
Senior Systems Administrator Job Market in Florida
A snapshot from current Florida openings, updated as new roles post.
Who's Hiring



Top Industries Hiring
- Aerospace & Defense
What Florida Employers Look For
The qualifications that appear most often in senior systems administrator jobs across Florida.
- Minimum seven years of systems administration experience managing enterprise infrastructure environments
- Proficiency with Windows Server, Linux, and Active Directory in large-scale deployments
- Hands-on experience with virtualization platforms such as VMware vSphere or Microsoft Hyper-V
- Relevant certifications such as Microsoft MCSA, CompTIA Security Plus, or VMware VCP preferred
- Experience supporting cloud platforms including AWS, Azure, or Google Cloud in hybrid environments
- Strong scripting and automation skills using PowerShell, Bash, or Python for systems management
Senior Systems Administrator Jobs in Florida: Frequently Asked Questions
How do you become a senior systems administrator in Florida?
Senior systems administrator roles in Florida do not require a state-issued license, but employers consistently expect a bachelor's degree in computer science, information technology, or a related field combined with several years of progressive infrastructure experience. Industry certifications such as CompTIA Security Plus, Microsoft Azure Administrator, or VMware VCP carry real weight with Florida hiring managers, particularly in the defense, healthcare, and financial services sectors that anchor the state's IT labor market.
How much do senior systems administrators make in Florida?
Senior systems administrators in Florida earn a median of about $95,200 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $59,340 for the lowest 10% to over $143,140 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire senior systems administrators in Florida?
Employers hiring senior systems administrators in Florida right now include General Dynamics Information Technology, L3Harris, and Northrop Grumman, based on current listings on Migrate Mate as of September 2026. Florida's mix of large defense contractors around Tampa and Melbourne, major hospital systems in Orlando and Miami, and regional financial institutions creates a broad and consistent base of senior-level infrastructure hiring throughout the state.
Which Florida cities have the most senior systems administrator jobs?
Tampa, Orlando, and Melbourne have the most senior systems administrator openings in Florida right now. Tampa leads because of the concentration of defense contractors and financial services firms on the Gulf Coast, while Orlando's healthcare networks and hospitality technology companies drive steady hiring, and Miami's position as a regional headquarters hub for multinational corporations generates ongoing demand for senior infrastructure talent.
Are there remote senior systems administrator jobs in Florida?
Yes, and more than most technical fields, since much of the configuration, monitoring, and scripting work can be done off-site. About 44% of senior systems administrator openings tied to Florida are remote or hybrid as of September 2026, reflecting how widely cloud tools and remote management platforms have been adopted. The portions of the role most likely to remain on-site involve physical hardware maintenance, data center work, and classified government contract environments.
How can I get hired as a senior systems administrator in Florida with little or no experience?
The most realistic entry path is starting as a help desk technician or junior systems administrator at a Florida employer and building toward the senior tier through demonstrated project ownership. Large Florida health systems like AdventHealth and HCA Florida run structured IT associate programs that bring in candidates with associate degrees or CompTIA A Plus certification. Gaining hands-on lab experience with virtualization and cloud tools, then earning a recognized certification, is the credential combination that most consistently opens doors with Florida hiring teams.
Where can I find and apply to senior systems administrator jobs in Florida?
You can find and apply to senior systems administrator jobs in Florida on Migrate Mate, which lists current openings from employers actively hiring across the state. Search the listings for roles that match your experience level, specialization, and preferred location, then apply directly to the ones that fit.
See All 30 Senior Systems Administrator Jobs in Florida
Find roles in Florida that match your experience and apply in just a few clicks.
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