Senior F-5 Systems Administrator

Clearance Level
Interim Secret
Systems Administration
Fort Huachuca, Arizona
Onsite Workplace
Key Skills For Success


Network Administration


REQ#: RQ165256
Public Trust: MBI Full 5C (T3)
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

Senior F-5 Certified Big-IP Admin

Transform technology into opportunity as a Senior F-5 Certified Big-IP Admin with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

At GDIT, people are our differentiator. We are looking for an eager and energetic F5 Certified BIG-IP Subject Matter Expert (SME) who can perform day to day operations and troubleshooting of TMOS-based devices to join our team supporting the Network Enterprise Technology Command (NETCOM) out of Ft. Huachuca, Arizona. The F5 Certified BIG-IP Administrator will be a part of a diverse team supporting a globally distributed information system, responsible for the analysis, administration and support of voice, video, and/or data communications networks.


  • Manages all F5 BIG-IP components for a globally dispersed information system.
  • Assist in managing load balance traffic and viewing statistics and logs.
  • Execute TCPDUMP activities and reporting on BIG-IP Systems.
  • Responsible for shutting down and restarting BIG-IP Systems
  • Deliver high availability services within the local LAN/MAN/WAN
  • Provide load balancing administration and support for DNS routing between enterprise locations.
  • Save and replicate configuration data and oversee its transition onto a BIG-IP System
  • Define user roles and administrative partitions.
  • Configure, locate, manage, and recognize iRules components within the GUI and CLI.
  • Troubleshoot virtual server connectivity issues, hardware, and basic performance.
  • Troubleshoot complex network problems, network device configurations and coordinate with various department administrators to facilitate connectivity issue resolution
  • Maintains F5 BIG-IP security and ensures compliance with security policies and procedures.
  • Maintains F5 BIG-IP appliances by applying patches and performing firmware upgrades.
  • Responsible for opening support tickets with F5 and must provide detailed reports for current device status.
  • Interfaces with vendor to ensure resolution during F5 BIG-IP outages or periods of reduced performance.
  • Develops testing strategies and document results.
  • Design and document technical solutions
  • Provides advice and basic operation training to internal and external customers.
  • Maintains current knowledge of relevant hardware and software applications as assigned.
  • Participates in special projects as required.


  • Education: Technical Training, Certification(s) or Degree: BS in Information Technology or Computer Science related field or equivalent years of experience
  • Certifications: Security+ required. Following are good to have: 8570 baseline certification: IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, or SSCP.
  • Required Experience: 6+ years of related experience in F5 administration
  • Required Technical Skills: F5, Networking, troubleshooting, proxy experience
  • Familiarity with VMware virtualization.
  • Experience with LTM, APM, GTM and DNS desired
  • Must have an in-depth understanding of GUI troubleshooting tools, TCP dumps and other utilities.
  • .Must have a high level understanding of networking fundamentals.
  • Must be able to investigate basic device management connectivity problems.
  • Understanding of Linux system administration desired
  • Understanding of programming/scripting knowledge such as Python, Ansible a plus
  • Security Clearance Level: Secret
  • Required Skills and Abilities: communication, problem solving,
  • Location: On Customer Site, Fort Huachuca, AZ

● 401K with company match
● Comprehensive health and wellness packages
● Internal mobility team dedicated to helping you own your career
● Professional growth opportunities including paid education and certifications
● Cutting-edge technology you can learn from
● Rest and recharge with paid vacation and holidays

Work Requirements
Years of Experience

6 + years of related experience

* may vary based on technical training, certification(s), or degree


CompTIA - Security+ CE - CompTIA

Travel Required

Less than 10%


U.S. Citizenship Required

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.