CISCO Nexus Admin Network Engineer

Job Description:

Mandatory Skills: CISCO Nexus Admin .

Primary Skill - Cisco Nexus admin L2/L3 switching & routing CCNA / CCNP Enterprise certification Cisco ISE Cisco SD-Access and Catalyst Center

Secondary Skill - Network security and firewall technologies FortiGate Firewalls - Firewall policies VPNs routing multi-VDOM.

L3/L2 Network Engineer - Enterprise Connectivity (SDN / Security / Wireless)

Role Overview:
As an L3/L2 Network Engineer you will be responsible for the implementation monitoring and troubleshooting of enterprise connectivity solutions across campus and data center environments. You will support software-defined networking security infrastructure and cloud-integrated services to ensure stable secure and scalable operations. This role focuses on day-to-day operations incident resolution and network performance optimization while collaborating with engineering security and operations teams to maintain a reliable and resilient enterprise network ecosystem.

Key Responsibilities

Operations & Support

• Monitor and maintainenterprise network infrastructureacross campus and data center environments
• PerformL2/L3 troubleshootingof network security and connectivity issues
• Ensure adherence toincident management and escalation processes

Incident & Problem Management

• Diagnose and resolve:
  • Network outages and performance issues
  • Routing firewall wireless and SDN-related incidents
• Conductroot cause analysis (RCA)and support problem management activities
• Work onmajor incidentsin coordination with cross-functional teams

Network Monitoring & Performance

• Monitor network health usingtools and dashboards (Catalyst Center FortiAnalyzer etc.)
• Identify performance bottlenecks and implement optimization measures
• Ensurehigh availability and uptimeof services

Configuration & Change Management

• Execute network configurations and changes in line withchange management processes
• Assist in deployment and validation ofnetwork upgrades and enhancements
• Maintain configuration standards and documentation

Security & Compliance

• Support implementation of:
  • Firewall policies
  • Network segmentation
  • Identity and access control (ISE)
• Ensure compliance withenterprise security standards

Collaboration & Continuous Improvement

• Work closely with:
  • Architects and engineering teams for implementation
  • Security teams for compliance
  • Operations teams for service continuity
• Contribute toautomation and process improvement initiatives

Technology Stack / Scope

Cisco SD-Access - Troubleshooting SDA fabric VXLAN overlays SDA policies
Catalyst Center (DNA Center) - Network monitoring provisioning support assurance workflows
NDFC (Nexus Dashboard Fabric Controller) - Monitoring and troubleshooting VXLAN EVPN data center fabrics
Cisco ISE - AAA troubleshooting endpoint profiling issues
FortiManager - Firewall configuration management and policy updates
FortiAnalyzer - Log monitoring reporting and security analysis
FortiGate Firewalls - Firewall policies VPNs routing multi-VDOM
BGP Routing - Monitoring and troubleshooting eBGP/iBGP
Aruba Wireless - APs controllers SSIDs ClearPass integration L3L2 - JD 1 Word

Required Skills & Qualifications Technical Skills

• Strong experience in: o Enterprise networking (L2/L3 switching & routing) o Network troubleshooting and incident resolution
• Knowledge of: o SDN concepts and Cisco SD-Access o Routing protocols (BGP OSPF - preferred) o Network security and firewall technologies o Wireless networking (Aruba preferred) Platform Expertise
• Hands-on experience with: o Cisco SD-Access and Catalyst Center o Cisco ISE o Fortinet stack (FortiGate FortiManager FortiAnalyzer) o Data center networking (VXLAN/EVPN exposure preferred) Additional Skills Basic scripting/automation (Python or similar - preferred)
• Understanding of cloud networking concepts (AWS/Azure - preferred)
• Familiarity with ITSM tools (e.g. ServiceNow) Experience Requirements
• L2 Engineer: 3-5 years of experience in enterprise networking
• L3 Engineer: 5-8 years of experience with advanced troubleshooting and escalation handling
• Proven experience in: o Supporting enterprise or data center networks o Handling major incidents and critical issues Behavioral & Soft Skills
• Strong problem-solving and analytical skills
• Effective communication and stakeholder coordination
• Ability to work in 24x7 support environments
• Proactive mindset with focus on continuous improvement Preferred Certifications
• Cisco (CCNA / CCNP Enterprise)
• Fortinet NSE certifications
• Aruba certifications (optional / preferred) Why This Role Matters

This role ensures:
Operational stability and high availability of enterprise networks
Faster incident resolution and reduced downtime
Continuous optimization and modernization of network infrastructure

Required Skills:

Cisco NexusNexusCCNPCCNACisco ISECisco Access PointsCatalyst