Senior Network Security Engineer - F5Firewall

Responsibilities (Includes All Tasks): • Planning, scheduling, and implementing network upgrades, implementations, and migrations for clients in a timely manner, during times that will have the least impact on users of the affected systems. • Developing and implementing the architecture and design of networks and network diagrams. • Managing three-tier network architecture, including core switches, distribution switches, access switches, leased lines, and MPLS links with high availability. • Configuring Alto Firewall in active and passive modes, managing security policies, Qo S, NAT, sub-interfaces, aggregated interfaces, virtual routers, and zones. • Managing perimeter firewalls with master/slave configuration, VDOM, IPsec VPN, SSL VPN, vendor-specific IP subnets, user integration with AD via LDAP, NAT configuration, and traffic shaping. • Managing Cisco Wireless Controllers 9800 in Active/Standby mode, with all SSIDs integrated with ISE for 802.1X and vendor-specific access. • Configuring and managing DNS and DHCP pools. • Configuring and managing IPS. • Designing and managing F5 BIG-IP LTM Load Balancer, including creating VIPs, pools, persistence profiles, SSL profiles, SSL offloading, and i Rules, aiming for high availability and network failover. • Configuring and managing F5 GTM devices for DNS solutions, ensuring synchronization between data centers and disaster recovery sites. • Creating and managing access policies in F5 APM for VPN traffic. • Maintaining disaster recovery plans for IT operations and participating in organizational and customer-level disaster recovery testing. #J-18808-Ljbffr