Senior Network and Security Engineer

Design, deploy and hand over enterprise security and data-centre projects for CNS customers across the UAE. The role is hands‑on: the engineer leads implementations end to end
- Next-Gen Firewalls, Zero Trust, NAC, F5 application delivery and Cisco ACI - and acts as the technical escalation point for the team.

Gather customer requirements and produce High-Level Design (HLD) and Low-Level Design (LLD) documents for security and data-centre solutions.

Design segmentation, firewall policy, Zero Trust access and NAC policy models aligned with customer security standards.

Review existing customer environments and recommend hardening, migration and consolidation paths.

Lead end-to-end deployments: staging, configuration, integration, cut-over and post-go-live support.

Plan and execute firewall and load-balancer migrations (policy conversion, rule clean-up, rollback plans) with minimal downtime.

Integrate security platforms with AD/LDAP, RADIUS/TACACS+, PKI, SIEM and SOAR.

Write and run User Acceptance Test (UAT) plans and deliver as-built documentation and knowledge transfer to customers.

Act as L3 escalation for network and security incidents; lead root‑cause analysis for major incidents.

Carry out preventive maintenance (PM) health checks, firmware upgrades and vulnerability remediation within agreed maintenance windows.

Meet SLA targets on assigned tickets and keep ticketing tools up to date.

Support pre‑sales with solution sizing, BoQ review, SOW and RFP technical responses.

Present technical status to customer stakeholders and internal management.

• Bachelor's degree in Computer Science, Electrical/Telecom Engineering or IT (or equivalent experience).
• At least one of: CCNP Security or CCNP Enterprise / Data Center; PCNSE;
  Fortinet NSE 7 / FCSS; F5 Certified Technology Specialist (301/302/303).

• CCIE Security / Data Center / Enterprise.
• Cisco ISE or ACI specialist certification.

Minimum 10 years in enterprise networking, including 5+ years delivering network security projects.

• System integrator or managed‑services experience in the UAE/GCC.
• Hands‑on delivery of multi‑vendor firewall and F5 migrations.

• Next‑Gen Firewall
  - Palo Alto, Forti Gate, Cisco FTD/FMC: HA deployments, policy migration, IPS, URL filtering, SSL decryption, VPN.
• Fortinet Security Fabric
  - Forti Manager, Forti Analyzer, FortiEMS, FortiZTP, Forti Sandbox, FortiADC, Forti Mail.
• Zero Trust / ZTNA / SASE - ZTNA rollouts replacing legacy VPN;
  IdP integration (Entra , Okta) and MFA.
• Network Access Control
  - Cisco ISE, Aruba Clear Pass, FortiNAC: 802.1X, MAB, guest/BYOD, posture, profiling, Trust Sec.
• Application delivery - F5 BIG‑IP LTM, GTM, Advanced WAF, APM; F5OS / rSeries / VELOS.
• Data‑centre fabric
  - Cisco ACI (APIC), Nexus 9000: fabric bring‑up, tenants/VRF/BD/EPG, L3
  
  Out, service graphs.
• Layer 2 / Layer 3 - VLANs, STP, LACP, vPC; BGP, OSPF, EIGRP, VRF, HSRP/VRRP, VXLAN EVPN.
• Zero‑touch SD‑WAN
  - Fortinet SD‑WAN (FortiZTP + Forti Manager) large‑scale branch rollouts.

• Security operations - SIEM (Splunk, QRadar), EDR, vulnerability scanners, CIS hardening.
• Automation
  - Python, Ansible, REST APIs, Terraform for bulk configuration and policy migration.
• Clear written English for HLD/LLD, method statements, change requests and customer reports.
• Valid UAE driving licence; willing to work maintenance windows and join an on‑call rota.

Compliance with policies and procedures based on the ISO standards adopted by CNS.