Senior Network Security Engineer: Private Cloud & Cisco ACI

kbctechnologies; United Arab Emirates; On-site; AED 250,000 - 380,000; Full time

Job summary

kbctechnologies in Dubai is seeking an experienced Network Security Engineer to operate and support software-defined networking and security components within a Nutanix private-cloud environment.

The role will manage cloud networking, virtual networks, routing, micro-segmentation, and coordinate with FTA and its MSP for Cisco ACI, perimeter firewalls, and external load balancers. On-site with 8×5 on-call support and reports to Service Delivery Manager.

Qualifications

• 7-9 years of professional experience in enterprise networking and security.
• Strong knowledge of enterprise networking, TCP/IP, routing, switching, VLANs, DNS, and load balancing.
• Experience with Nutanix Flow, virtual networking, and micro-segmentation.
• Working knowledge of Cisco ACI concepts, including APIC, EPGs, bridge domains, contracts, and spine/leaf architecture.
• Understanding of firewall policies, network-security controls, and traffic flow.
• Experience troubleshooting hybrid physical and virtual network environments.
• Knowledge of security hardening, access control, change management, and incident management.
• Ability to work onsite with on-call support.

Responsibilities

• Manage Nutanix cloud networking for the proposed infrastructure.
• Configure and support network segments, virtual networks, routing, and connectivity within the SDDC.
• Administer micro-segmentation and distributed security policies.
• Support internal load-balancing configurations within the private-cloud environment.
• Monitor network and security health, availability, utilization, latency, and alerts.
• Troubleshoot connectivity issues affecting virtual machines, clusters, Kubernetes workloads, storage, backup, and databases.
• Review network logs and alerts and coordinate incident resolution.
• Maintain network diagrams, configuration documents, rule bases, and operating procedures.
• Support endpoint groups, VLANs, bridge domains, contracts, and connectivity requirements with the Cisco ACI team.
• Coordinate approved changes on Cisco ACI spine/leaf infrastructure.
• Coordinate perimeter-firewall, external load-balancer, and upstream-network changes with FTA and the existing MSP.
• Review micro-segmentation rules and security policies for compliance and least-privilege access.
• Participate in network and security patching, hardening, and vulnerability-remediation activities.
• Verify configuration backups and network-device health.
• Assist with network-capacity planning, traffic analysis, and performance optimization.
• Support DR connectivity, failover testing, and recovery exercises.
• Participate in major-incident resolution, root-cause analysis, and vendor escalation.
• Prepare network availability, performance, capacity, incident, and security-compliance reports.

Skills

Enterprise networking

TCP/IP

Routing

Switching

VLANs

DNS

Load balancing

Nutanix Flow

Virtual networking

Micro-segmentation

Cisco ACI concepts

Firewall policies

Incident management

Education

CCNP Enterprise / Data Center / Security or equivalent certification

Tools

Nutanix Flow

Cisco ACI

Job description

kbctechnologies in Dubai is seeking an experienced Network Security Engineer to operate and support software-defined networking and security components within a Nutanix private-cloud environment.

The role will manage cloud networking, virtual networks, routing, micro-segmentation, and coordinate with FTA and its MSP for Cisco ACI, perimeter firewalls, and external load balancers. On-site with 8×5 on-call support and reports to Service Delivery Manager.