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Senior Network Security Engineer F5Firewall

Intertec Softwares Pvt Ltd

Dubai

On-site

AED 120,000 - 200,000

Full time

Today
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Job summary

A technology services company in Dubai is looking for a network engineer to plan and implement network upgrades, develop network architecture, and manage firewalls and disaster recovery plans. Candidates should have experience with three-tier network architecture and various firewall configurations. This role is critical to maintaining high availability and security in network operations.

Responsibilities

  • Plan, schedule and implement network upgrades with minimal user impact.
  • Develop and implement network architecture and drawings.
  • Manage three-tier network architecture.
  • Configure Alto Firewall and security policies.
  • Configure perimeter firewall with integrations.
  • Manage Cisco Wireless Controllers and SSIDs.
  • Configure and manage DNS and DHCP pools.
  • Manage IPS and disaster recovery plans.
Job description
Responsibilities
  • Plan, schedule and implement network upgrades, implementations and migrations for clients in a timely manner and during times that will have the least impact on the users of the affected systems.
  • Develop and implement the architecture and design of networks and network drawings.
  • Manage three‑tier network architecture which includes core switches, distribution switches and access switches, leased lines and MPLS links with high availability.
  • Configure Alto Firewall with active and passive modes and security policies, QOS, NAT, sub interfaces, aggregated interfaces, virtual routers and zones.
  • Configure perimeter firewall with master/slave configuration VDOM, IPsec VPN, SSL VPN, vendor‑specific IP subnet, user integration with AD via LDAP, NAT configuration and traffic shaping.
  • Manage Cisco Wireless Controllers 9800 with Active/Standby, all SSIDs integrated with ISE for 802.1X and vendor‑specific access.
  • Configure and manage DNS and DHCP pool.
  • Configure and manage IPS.
  • Configure, design and manage F5 BIG‑IP LTM Load Balancer: create VIPs, create pools and associate pools with VIPs, create Persistence Profile, SSL Profile, SSL Offloading and iRules for high‑availability solution with network failover.
  • Configure and manage F5 GTM devices for the DNS solution for external and internal websites, synchronized between DC and DR.
  • Create and manage access policy in F5 APM for VPN based traffic.
  • Maintain disaster recovery plans for IT operations and participate in organizational and customer level disaster recovery testing.
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