Senior Network Security Engineer

Job Overview

Key Responsibilities

• :Manage incident, change, and problem management across ACI, SD-ACCESS, and campus/data center network
• sOperate and maintain Cisco ACI fabric, including EPGs, BDs, VRFs, L3Outs, contracts, service graphs, and Multi-Pod environment
• sOperate Cisco SD-ACCESS environments using DNA Center and Cisco ISE (VN/VRF, VXLAN, LISP, SGT, fabric provisioning
• )Execute network deployments, migrations, expansions, and infrastructure upgrades (ACI and DNA Center/IOS-XE
• )Provide 24x7 operational support and on-call coverage for critical incident
• sEnsure adherence to ITIL processes across Incident, Change, and Problem Managemen
• tCollaborate with vendors and Cisco TAC for troubleshooting and resolution of complex issue
• sWork closely with application, security, and infrastructure teams to ensure secure connectivity and policy enforcemen
• tMaintain accurate and up-to-date technical documentation, SOPs, and runbook
• s

Required Experienc

• e:8–10 years of experience in enterprise networking (data center and campus environment
• s)Minimum 5 years of hands-on experience with Cisco A
• CIMinimum 4 years of experience with Cisco SD-ACCESS / DNA Cent
• erStrong experience in ITIL-aligned operational environmen
• tsExperience supporting 24x7 managed services operatio
• nsExposure to enterprise or government environments is an advanta
• ge

Core Technical Skil

• **ls:Cisco A**
• CI: EPGs, BDs, VRFs, L3Outs, Multi-Pod, VMM integration,
• **PBRCisco SD-ACCE**
• SS: DNA Center, VXLAN, LISP, SGT, Cisco ISE integration, VN/VRF segmentat
• **ionRouting & Switchi**
• ng: BGP, OSPF, EIGRP, MPLS, STP, vPC, VLANs, EtherChan
• nelCisco Nexus, Catalyst, and ASR platfo
• rmsITIL Incident, Change, and Problem Managem
• ent

Preferred Ski

• lls:Cisco ISE advanced configuration and policy manage
• mentNetwork automation (Python, Ansible, Terraf
• orm)VMware NSX-T expo
• sureCCIE Data Center / Enterprise certifica
• tion

Ideal Candidate Pro

• file:Strong troubleshooting and analytical s
• killsAbility to operate effectively in high-pressure, 24x7 production environ
• mentsStrong ownership mindset with SLA-driven delivery
• focusExcellent communication and documentation capabil
• itiesProcess-oriented with a focus on operational excel
• lence