System Administrator II (BIG IP F5)
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Before you apply
LocationMontgomery, AL, US
Work modeon-site
Typefull-time
SeniorityMid
Experience3+ yrs
Company size501–1,000 people
PostedOct 29, 2026 · 5d ago
Verified live12h ago
At a glanceSummarised by Seekless from the posting.
3+ years experience with Big IP F5 products
HS diploma or GED
Security+ certified or equivalent IAT II certification
F5 Certified Technology Specialist (F5-CTS) – Local Traffic Manager (LTM) or F5-CTS – Access Policy Manager (APM) or F5 BIG-IP Certified Administrator or able to obtain within 90 days
Excellent communication skills and analytical skills to troubleshoot issues
Hold a current Secret clearance
Must be a US citizen
Skills
Big IP F5
F5
SSL
PKI
Local Traffic Manager (LTM)
Access Policy Manager (APM)
DISA STIG
Overview
Abacus Technology is seeking a Systems Administrator to provide Big IP F5 support for the Air Force Intranet Control (AFINC) III Support program at Maxwell AFB/Gunter Annex. This is a full-time position.
Responsibilities
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Operate, maintain, monitor F5 appliances, configurations, identify BIG‐IP Traffic Processing Objects, and analyze overall health and effectiveness of multiple Big IP F5 instances.
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Manage application integration designs around application logic and authentication configuration (session management, application redirects, rewrites, migration scenarios, app routing, CAC/PIV authentication).
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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.
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Install and patch Big IP F5 systems, and document DISA Security Technical Implementation Guidelines (STIGs) checklists.
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Design and administrator load balancing strategies/ techniques, in application switching / traffic management, knowledge of persistence and SSL certificates.
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Create and maintain documentation detailing architecture components, configurations, monitoring & alerting setup, troubleshooting guides, and checklists.
Qualifications
3+ years experience with Big IP F5 products. HS diploma or GED. Must be Security+ certified or hold an equivalent IAT II certification. Must hold one of the following certifications or be able to obtain within 90 days of hire: F5 Certified Technology Specialist (F5‐CTS) – Local Traffic Manager (LTM); F5‐CTS – Access Policy Manager (APM); or F5 BIG‐IP Certified Administrator. Experience with Big IP F5 products performing systems administration, including installations, configurations, monitoring system performance and availability, upgrades, troubleshooting, and certificate management. Excellent communication skills and analytical skills to troubleshoot issues. Must be a US citizen and hold a current Secret clearance.
Applicants selected will be subject to a U.S. government security investigation and must meet eligibility requirements for access to classified information.
EOE/M/F/Vet/Disabled
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