F5 Big-IP Intermediate Administrator

Clearance Level
Interim Secret
Network Administration
Fort Huachuca, Arizona

REQ#: RQ138518

Travel Required: Less than 10%
Public Trust: NACLC (T3)
Requisition Type: Regular

GDIT is looking for an eager and energetic Intermediate F5 Certified Big-IP Administrator 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.

Job Description:

  • Manages all F5 Big-IP components for a globally dispersed information system.
  • Assist in managing load balance traffic and viewing statistics and logs.
  • Configure virtual servers, pools and monitor BIG-IP configuration states and files.
  • Must have a proper understanding of traffic management shell hierarchical structures and their navigation.
  • Have an understanding of how to use TCPDUMP on BIG-IP Systems.
  • Must be able to define user roles and administrative partitions.
  • Must be able to locate and recognize iRules components and know where they are actualized within the GUI and trigger iRules with events.
  • Must have an in-depth understanding of GUI troubleshooting tools, TCP dumps and other utilities.
  • Must be able to resolve virtual server connectivity issues.
  • Must be able to handle any problem related to hardware and basic performance.
  • Must be able to investigate basic device management connectivity problems.
  • Responsible for opening support tickets with F5, and must provide detailed reports relating to a current device status.
  • 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.
  • Must have an intermediate level understanding of networking fundamentals.
  • Interfaces with vendors to ensure appropriate resolution during F5 BIG-IP outages or periods of reduced performance.
  • Must have a basic understanding of TCL
  • Familiarity with VMware virtualization
  • Develops and implements testing strategies and document results.
  • Provides advice and training to internal and external customers.
  • Troubleshoots and resolves complex problems.
  • Maintains current knowledge of relevant hardware and software applications as assigned.
  • Participates in special projects as required.
  • Experience with LTM, APM, GTM and DNS desired
  • Understanding of basic Linus syntax desired
  • Understanding of programming/scripting knowledge such as Python, Ansible a plus


BS in Information Technology or Computer Science related field or equivalent years of experience


  • 2-5 or more years of F5 network administration experience
  • 8570 certification: IAT Level II Certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, or SSCP)
  • Secret DoD Security Clearance
  • Must be US Citizen
  • Computing environment certificate: F5 Big-IP Admin or equivalent within 6 months of hire.

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

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.