LAN ACI Engineer

Job Description Must Have Technical/Functional Skills Strong knowledge in Switching technologies – Tenant, VRFs, BDs, EPGs, VXLAN, STP, Trunking, Ether channel, HSRP, VRRP, LACP, PaGP, BGP, OSPF, MP-BGP. Switching Models Nexus 9K, 7K, 5K, 2K, VPC, FEX, VDC, Cisco VSS, VPC, Cisco Catalyst 6800, 6500, 4500, 3800, 3500, 2900 with stacking. Deep understanding of Internet Protocol (IP) addressing and Variable Length Subnet Mask (VLSM). Extensive experience designing and implementing Cisco ACI, SDA (Software-Defined Access), DNAC with Data Center Networking Technologies and Cloud Solutions. Strong experience with Monitoring and Alerting Tools: Cisco APIC/ACI, Nexus Dashboard, Cisco DNAC, Cisco ISE, PagerDuty, Nagios & Thousand Eyes. CCNP Certified (Routing & Switching) & Higher Strong knowledge on Cisco Data Center with ACI environment (Single/Multi Pod) Expert Knowledge of LAN switching technologies: STP, Trunking, Ether channel and good understanding of high availability fundamentals (HSRP and VRRP) Good understanding of Local Area Network (LAN) switching technologies including ACI, APIC, VXLAN, fabric path, SDA, DNAC, ISE, Spanning Tree, Virtual LAN (VLAN), and VLAN Trunking Protocol (VTP) concepts. Good hands-on experience on the load balancing concepts like LACP, PaGP Strong hands-on work experience with Cisco Nexus 9K, 7K, 5K, 2K devices, Cisco Catalyst 9K, 3K & 4K series. Experience in designing, deploying, and troubleshooting VSS, VDC, VPC, OTV, Fabric path, FCoE and multi-tenancy in the datacenter. Deep understanding of Internet Protocol (IP) addressing and Variable Length Subnet Mask (VLSM). Good understanding of DHCP, DNS – Hands‑on experience & troubleshooting knowledge on Infoblox. Troubleshooting network link/device hardware/configuration issues, isolating the problem, fixing the problem Install, configure, and support large‑scale production and corporate network infrastructure including routers, switches, console servers and equipment. Schedule and perform network maintenance, repair, and upgrade tasks as needed while limiting the impact on the production network. Very strong Layer 2 & 3 Networking skills solid BGP, IPV4, IPv6, Change management. Troubleshooting the routing protocols like BGP, EIGRP, Static and OSPF and work with the ISPs and internal teams to resolve the issues. Experience working on CoS, QoS, WRED and related quality of service parameters. Working knowledge on MPLS, Metro Ethernet and Hub & Spoke concepts. Roles & Responsibilities Provide operations support for Enterprise LAN, Security, Data Center, and Campus Network platforms across North America locations. Installing, configuring, and supporting network equipment including Switches & Routers using APIC & DNAC tool. Configuration and operational support experience with Cisco ACI - Spine‑leaf switches, APIC and APIC-EM controller, Nexus switches. Resolve connectivity problems between applications, EPGs, and external networks. Diagnose routing, contracts, and endpoint learning issues. Maintain external connections (L3Out, firewalls, load balancers) and apply micro‑segmentation and policy rules. Add or update ACI objects (tenants, VRFs, bridge domains, EPGs, contracts). Deep understanding of network orchestration and automation using Cisco ACI/APIC, SDA & DNAC with ISE integration. Procuring network equipment and managing subcontractors involved with network installation. Configuring routing and switching to maximize network efficiency and security. Supervise and/or perform site installs, maintenance, upgrades or software enhancements to support the network infrastructure needs. Plan and execute APIC and switch firmware upgrades. Function as a point of escalation for operational entities regarding regular or complex issues. Maximizing network performance through ongoing monitoring and troubleshooting. Investigating faults in the network. Resolve incidents/problems/changes according to established procedures. Work on service improvement activities and complete them within target dates. Explore & support automation where possible. Work closely with customer, infrastructure teams and vendors such as Cisco. Reporting network status to key stakeholders Reporting network status to key stakeholders. Base Salary Range $80,000 to $110,000 per annum. TCS Employee Benefits Summary Discretionary Annual Incentive. Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans. Family Support: Maternal & Parental Leaves. Insurance Options: Auto & Home Insurance, Identity Theft Protection. Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement. Time Off: Vacation, Time Off, Sick Leave & Holidays. Legal & Financial Assistance: Legal Assistance, 401(k) Plan, Performance Bonus, College Fund, Student Loan Refinancing. Qualifications Bachelor of Computer Science #J-18808-Ljbffr