Sr. Network Engineer

We are seeking a Level 2 Network Engineer with Data Center / Cloud Operational expirience with 5-7 years to support, operate, and troubleshoot enterprise data center environments. The role focuses on day-to-day operations, incident resolution, performance optimization, and lifecycle management of large-scale data center networks built on modern architectures such as VXLAN, Spine-Leaf, ACI, and Nexus platforms in high sensitivity Health Care systems

Key Responsibilities

. Provide L2 operational support for enterprise data center networks across production and DR environments.
. Manage and monitor data center fabric built on Spine-Leaf architecture, VXLAN, and EVPN technologies.
. Operate and troubleshoot Cisco Nexus (N7K/N9K), vPC (Virtual Port Channel), and ACI (Application Centric Infrastructure) environments.
. Monitor network health, fabric stability, and performance using Cisco Nexus Dashboard, DNAC (if applicable), and other monitoring tools.
. Troubleshoot issues related to overlay (VXLAN), underlay routing (BGP/OSPF), vPC consistency, and fabric connectivity.
. Support configuration and maintenance of VLANs, VRFs, port channels, vPC domains, and Layer 2/Layer 3 switching.
. Assist in fabric expansion, leaf/spine onboarding, VTEP configuration, and multi-site/DCI connectivity.
. Perform software upgrades, patching, and lifecycle activities for Nexus switches and ACI fabrics.
. Work on ACI tenant configurations, contracts, EPGs, bridge domains, and policies (where applicable).
. Support and troubleshoot multicast, QoS, and high availability features within the data center.
. Participate in incident management, problem management, and RCA activities with proper documentation.
. Collaborate with Server, Virtualization, Security, Storage, and Cloud teams for seamless service delivery.
. Follow standard operating procedures, configuration templates, and compliance guidelines.
. Participate in on-call support and maintenance windows as required.

. Familiarity with Data Center Edge and AGG Routing

. Incident Management, Change Management familiarity for Smooth Data Center Operations.

. Familiarity to understand on-call procedures and respond both reactively and proactively

. Familarity of sensitivity of Health care systems and related IT Operations

What Would Your Day Look Like

. Review dashboards for fabric health, VXLAN tunnels, and Nexus/ACI alerts.
. Troubleshoot incidents related to data center connectivity, overlay/underlay issues, vPC mismatches, and application reachability.
. Perform configuration changes such as VLAN provisioning, port configuration, vPC setup, and ACI policy updates.
. Support new server onboarding, rack/stack connectivity, and leaf switch provisioning.
. Assist in data center migration, expansion, or refresh activities.
. Coordinate with cross-functional teams for issue resolution and deployments.
. Document incidents, changes, and provide inputs for RCA.
. Contribute to improving network stability, automation, and operational efficiency.

. Performincident management, restore services within SLA, and document RCA for recurring issues

. Monitor network health using tools such as SolarWinds/ServiceNow and act on alerts proactively

. On-Call work procedures in Day to Day Operations

Required Qualifications

. Bachelor's Degree (or equivalent) in Engineering / Technology.
. 5-7 years of experience in data center networking and operations.
. Strong hands-on experience with Cisco Nexus switches (N5K/N7K/N9K).
. Solid understanding of Spine-Leaf architecture, VXLAN, EVPN, and data center overlays.
. Experience in vPC configuration, troubleshooting, and best practices.
. Hands-on exposure to Cisco ACI (basic to intermediate level).
. Familiarity with underlay routing protocols (BGP, OSPF, IS-IS) and IP networking fundamentals.
. Experience with Nexus Dashboard, monitoring tools, and network visibility platforms.
. Strong troubleshooting skills across Layer 2, Layer 3, and overlay networks.
. Knowledge of high availability, redundancy, and failover mechanisms.
. Familiarity with ITIL processes, incident/change management.
. Willingness to participate in on-call rotations and maintenance activities.

Preferred / Nice to Have

. Experience with multi-site ACI, DCI (Data Center Interconnect), or hybrid cloud integration.
. Exposure to network automation tools (Python, Ansible, or REST APIs).
. Knowledge of firewalls, load balancers, and security integrations in DC environments.
. Familiarity with virtualization platforms (VMware, Hyper-V) and their networking requirements.
. Certifications such as CCNP Data Center, CCIE DC, or Cisco ACI certifications.
. Experience working in large enterprise or service provider data center environments.

. Azure and Cloud Integration Knowledge or Any Hybrid Cloud Experience