System Administrator II (Big IP F5)

DLS Engineering

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Montgomery, AL Until 9/5/2026 5+ years exp First posted March 18, 2026 Last posted July 7, 2026
Job description

About DLS Engineering


DLS is an engineering firm with 30 years of Federal Government contracting experience. Our small business efficiencies coupled with a commitment to excellence allow us to provide reliable solutions with integrity for our nation's most critical defense and national security priorities.

Position overview:

DLS Engineering is seeking a System Administrator II (Big IP F5) professional for a full-time position in support of the Air Force Intranet Control (AFINC) program at Gunter Annex in Montgomery, Alabama. This is an on-site position.


As part of AFINC, the mission of the 26th Network Operations Squadron (26 NOS) is to provide mission assurance to the warfighter through the operation, management, and defense of the Department of Defense Information Network (DODIN). In the execution of its mission, the 26 NOS maintains network infrastructure, to include routers, switches, proxies, firewalls, servers, workstations, printers, Storage Area Networks (SAN) and test labs, to provide maneuverability and defense of both classified and unclassified networks.


A day in the life:

  • Operate, maintain, monitor F5 appliances, configurations, identify BIG-IP Traffic Processing Objects, and analyze overall health and effectiveness of multiple Big IP F5 instances.
  • Manage application integration designs around application logic and authentication configuration (session management, application redirects, rewrites, migration scenarios, app routing, CAC/PIV authentication).
  • Support, troubleshoot and configure SSL intercept/inspection, web certificates, certificate management, PKI Certificate Authority (CA) bundles, private/public keys.
  • Install, configure, and administer Big IP F5 Platform Suite referencing Web Applications with Local Traffic Manager (LTM) and Access Policy Manger (APM) services.
  • Install and patch Big IP F5 systems, and document DISA Security Technical Implementation Guidelines (STIGs) checklists.
  • Design and administrator load balancing strategies/ techniques, in application switching / traffic management, knowledge of persistence and SSL certificates.
  • Create and maintain documentation detailing architecture components, configurations, monitoring & alerting setup, troubleshooting guides, and checklists.

When I read the below it sounds like me:

  • 5+ years of professional experience with Big IP F5 products performing systems administration, including installations, configurations, monitoring system performance and availability, upgrades, troubleshooting, and certificate management.
  • Active Secret Clearance
  • IAT-II Certification (required)
  • At least 1 of the following three certifications: F5 Certified Technology Specialist (F5-CTS) - Local Traffic Manager (LTM) OR F5-CTS- Access Policy Manager (APM) OR F5 BIG-IP Certified Administrator

Other information:

  • We offer a competitive salary and a 401k program with company match.
  • We offer a comprehensive benefits package including health, vision, dental, life, and disability insurance.
  • We offer a generous paid time off package
  • If accommodation is needed with the application and / or the interview process for applicants with disabilities, please contact Human Resources at 757-494-5151.
  • DLS is an E-Verify company.
  • DLS is an equal employment opportunity employer. Qualified applicants will receive consideration without regard to age, race, religion, sex (pregnancy, sexual orientation, gender identity), national origin, or disability. We encourage all qualified applicants to apply. If you believe you have been discriminated against, please contact Barbara Ellison. You also have the right to file a charge of discrimination with the equal employment opportunity commission.
  • Must be able pass a government background check, which will be completed before employment.
About this role

Summary

Manage, monitor, and troubleshoot Big IP F5 appliances, configurations, and security for DoD network.

Job title

System Administrator II (Big IP F5)

Experience level

5+ years

Minimum experience

5+ years exp

Industry

defense

Location requirements

on-site in Montgomery, AL; no remote work allowed

Salary

Not specified

Management role

No

Skills & keywords

Required skills

Big IP F5SSL certificatesPKInetwork securitydisaster recovery

Preferred skills

F5-CTSF5-CTS-APMF5 BIG-IP Certified Administrator

Specializations

Big IP F5SSL certificatesnetwork securityfirewallsPKI
Locations

Structured locations inferred from the posting.

Montgomery, AL, USA

On-site City
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