F5 Network Engineer

• Serve as a senior subject matter expert for F5 BIG-IP LTM and GTM/DNS.
• Manage and support enterprise F5 configurations including virtual servers, pools, nodes, monitors, profiles, persistence, SSL/TLS, and high availability.
• Support F5 GTM/DNS for global traffic management, DNS-based availability, failover, and traffic distribution.
• Troubleshoot complex F5 production issues related to load balancing, DNS, SSL/TLS, connectivity, performance, and availability.
• Perform root cause analysis and act as an L3 escalation point.
• Support F5 migrations, hardware replacements, configuration migrations, upgrades, patching, and lifecycle management.
• Implement F5 security updates, configuration hardening, and platform improvements.
• Support both physical and virtual F5 environments.
• Review existing F5 implementations and recommend resiliency, performance, security, and capacity improvements.
• Use Terraform and Infrastructure as Code practices to automate F5 configuration and deployment.
• Support Palo Alto firewall policies and advanced firewall troubleshooting.
• Troubleshoot Cisco routing, switching, and network connectivity issues.
• Support F5 and network services in hybrid and AWS cloud environments.
• Create implementation plans, change documentation, troubleshooting procedures, and technical standards.
• Provide technical leadership and mentoring to other engineers.
• Support after-hours maintenance windows when required.

• 5+ years of F5 BIG-IP experience.
• Deep, recent hands-on F5 LTM experience in large enterprise production environments.
• Deep, recent hands-on F5 GTM/DNS experience.
• Strong understanding of load balancing, application traffic management, DNS, high availability, failover, and traffic distribution.
• Hands-on experience configuring and troubleshooting virtual servers, pools, nodes, health monitors, profiles, persistence, SSL/TLS.
• Experience supporting physical and virtual F5 BIG-IP deployments.
• Experience with F5 migrations, hardware/platform replacements, configuration migrations, upgrades, and patching.
• Strong F5 production troubleshooting experience.
• Experience with F5 performance, capacity, resiliency, security hardening, and infrastructure optimization.
• Strong experience with Palo Alto Firewalls.
• Intermediate Cisco routing and switching knowledge.
• Strong knowledge of TCP/IP, routing, switching, DNS, SSL/TLS, firewalls, and network troubleshooting.
• Experience serving as a senior/L3 escalation point.
• Strong root cause analysis and problem-solving skills.
• Technical leadership and mentoring experience.
• Strong technical documentation and communication skills.
• Nice-to-Have Skills: Terraform experience, especially for F5/network automation; Infrastructure as Code; AWS networking experience; AWS CloudFront; hybrid data center and AWS environments; Ansible / Ansible Automation Platform; F5 ASM/WAF; additional Palo Alto firewall experience; Azure or Google Cloud Platform networking; ServiceNow; Jira; relevant certifications in F5, Palo Alto, Cisco, AWS, or Terraform., Bachelor’s degree in Computer Science, Computer Engineering, Information Technology, Network Engineering, or a related technical field. The real hiring focus is deep F5 LTM + GTM/DNS experience. Palo Alto, Cisco, Terraform, and AWS are valuable, but the strongest candidates will be the ones with recent, hands-on enterprise F5 engineering and troubleshooting depth.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.