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. DUTIES & RESPONSIBILITIES: Design and architecture • 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. Deployment and migration • 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. Operations and support • 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. Team and customer delivery • Support pre-sales with solution sizing, BoQ review, SOW and RFP technical responses. • Present technical status to customer stakeholders and internal management.Company Description Education: Minimum : • 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). Desired: • CCIE Security / Data Center / Enterprise. • Cisco ISE or ACI specialist certification. Experience: Minimum: • Minimum 10 years in enterprise networking, including 5+ years delivering network security projects. Desired: • System integrator or managed-services experience in the UAE/GCC. • Hands-on delivery of multi-vendor firewall and F5 migrations.