Senior F5 Administrator

Senior F5 Administrator The Senior F5 Administrator is responsible for the design, implementation, and operational management of enterprise F5 BIG‑IP application delivery and traffic management platforms across on‑premises and cloud environments. This role serves as a Level‑3 escalation point and provides architectural leadership for load balancing, application availability, SSL/TLS services, and resiliency designs supporting business‑critical applications. Responsibilities Operate and support enterprise F5 BIG‑IP platforms (physical, virtual, and cloud), ensuring high availability and performance for business‑critical applications. Provide Level‑3 operational support for incidents, outages, and complex performance issues, serving as an escalation point for F5‑related services. Configure and maintain application traffic services, including VIPs, pools, health monitors, persistence, profiles, and iRules. Manage platform lifecycle activities, including software upgrades, hotfixes, and routine maintenance across environments. Implement and support SSL/TLS services, including certificate deployment, renewal, and synchronization in high‑availability configurations. Partner with application, network, and security teams to onboard new services and resolve operational issues in production environments. Support hybrid and cloud‑based deployments, including F5 services in AWS and/or Azure and integration with upstream security controls. Maintain operational documentation, including runbooks, standards, and configuration records to support audits and service continuity. Qualifications 5+ years of hands‑on experience administering F5 BIG‑IP platforms Strong expertise with: VIPs, pools, monitors, persistence, profiles iRules (development and troubleshooting) Experience with high‑availability (HA) designs and traffic failover Strong understanding of: TCP/IP, DNS Load‑balancing algorithms and application behavior Preferred Qualifications Experience with F5 in cloud environments (AWS and/or Azure) Familiarity with application resiliency and blue/green deployment patterns 1 Experience integrating F5 with security platforms (WAF, firewalls, segmentation) Scripting or automation experience (Ansible, Python, Bash, REST APIs) Working Conditions This is a hybrid position requiring three days in office per week in one of our core locations (Cedar Rapids, IA / Denver, CO / Philadelphia, PA) Non‑traditional work hours as needed Participate in scheduled on‑call rotations and provide after‑hours support as required to maintain the security and availability of critical network services. Relocation assistance will not be provided for this position. Compensation The Salary for this position generally ranges between $94K - $120K annually. Please note that the salary range is a good faith estimate for this position and actual starting pay is determined by several factors including qualifications, experience, geography, work location designation (in‑office, hybrid, remote) and operational needs. Salary may vary above and below the stated amounts, as permitted by applicable law. Additionally, this position is typically eligible for an Annual Bonus based on the Company Bonus Plan/Individual Performance and is at the Company’s discretion. #J-18808-Ljbffr