F5 Systems Administrator
GDIT· enterprise· Defense IT· Oct 12, 2026 · 16d ago
Macdill Afb, FL
Hybrid
Full-time
Senior
$123K–$167K
5+ years exp
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:
Application Delivery Controller, F5 Load Balancer, Global Server Load Balancing (GSLB), System Administration 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 F5 Technician (F5 Systems Administrator) and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.
WHAT YOU WILL DO :
As a F5 Technician (F5 Systems Administrator), the work you’ll do at GDIT will be impactful to the mission of USCENTCOM. You will play a crucial role in configuring, maintaining, and troubleshooting F5 load balancing and traffic management systems to ensure high availability, reliability, and performance of critical applications and services. This role will involve working with network and systems teams to optimize application delivery and implement solutions to support USCENTCOM’s infrastructure and mission requirements.
Duties and Responsibilities:
Configure, deploy, and maintain F5 BIG-IP systems, including Load Balancers, Application Delivery Controllers (ADCs), and SSL offloading configurations.
Troubleshoot and resolve F5-related performance and availability issues, ensuring minimal service disruptions.
Collaborate with network, systems, and security teams to integrate F5 solutions into the broader network and infrastructure environment.
Design and implement traffic management rules, including global server load balancing (GSLB) and local server load balancing (LSLB).
Manage F5 configurations for SSL/TLS offloading, including key and certificate management for secure communication.
Monitor F5 systems for health and performance, providing proactive recommendations for optimization.
Configure and maintain F5 iRules to manage application traffic and provide enhanced functionality for specific use cases.
Ensure compliance with security policies, best practices, and regulatory requirements in the deployment and maintenance of F5 systems.
Support incident response and root cause analysis for any F5-related issues impacting critical applications or services.
Develop and maintain documentation for F5 configurations, change management, troubleshooting guides, and standard operating procedures.
Provide technical support and guidance to other IT teams and end-users regarding F5 traffic management solutions.
Assist in performing F5 system upgrades, patches, and troubleshooting tasks to ensure continued system functionality.
Collaborate with vendors to resolve hardware or software-related issues and escalate problems when necessary.
WHAT YOU’LL NEED TO SUCCEED :
Bring your technology expertise and drive for innovation to GDIT. The F5 Technician/Systems Administrator must have:
Certification: Applicable DoW 8140 or DoW 8570 Certification (i.e., CompTIA Security CE)
Experience: 5 years of related F5 Systems Administration experience. Role requirements:
Assist in the design and implementation of new F5 solutions to improve application delivery, scalability, and security.
Participate in capacity planning for F5 devices and the overall infrastructure to meet growing demand and service requirements.
Continuously evaluate and recommend enhancements to optimize the performance, security, and availability of applications.
Develop and conduct training sessions for staff on F5 best practices and configuration management.
Technical skills:
Must have hands-on experience with F5 BIG-IP systems, including Load Balancers, ADCs, and SSL offloading.
Knowledge of networking protocols, including TCP/IP, HTTP, HTTPS, DNS, and SSL/TLS.
Experience with F5 iRules and traffic management policies for application delivery.
Proficiency in configuring and managing F5 systems for high availability, disaster recovery, and scalability.
Ability to troubleshoot complex F5 issues, including performance, connectivity, and security problems.
Familiarity with monitoring and reporting tools for F5 system performance (e.g., F5 Analytics).
Strong understanding of application delivery, load balancing, and optimization techniques.
Excellent documentation skills for creating and maintaining configuration guides, troubleshooting steps, and change management records.
Desired Skills:
F5 Certified Administrator (F5-CA)
F5 Certified Technology Specialist (F5-CTS)
ITIL 4 Foundation Certification
Experience working with USCENTCOM and familiarity with its mission and operations.
Experience with F5 integration in hybrid cloud or multi-cloud environments.
Familiarity with automation and orchestration tools for F5 management (e.g., Ansible, Terraform).
Experience with DNS, HTTP/HTTPS, and security mechanisms in the context of F5 load balancing.
Ability to work with multiple teams to design and implement end-to-end application delivery solutions.
Required Security clearance level: current/active TS/SCI clearance is required
US citizenship required due to the TS/SCI clearance requirement
Must be able to work on site at MacDill AFB. Not a remote role.
WHAT GDIT CAN OFFER :
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
#ARMA
#CENTCOMCITS
#GDITPRIORITY
The likely salary range for this position is $123,250 - $166,750. 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:
Less than 10%
T elecommuting 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 at gdit.com/tc .
Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans
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Benefits
Benefits detected in the listing.
Dental
Vision
401k
401(K)
Paid Time Off
Wellness