Network Engineer (Nexus/ACI) ? L3

Job Description

Job Title: Network Engineer (Nexus/ACI) ? L3 Department/Group: SI Job Location: Mumbai Travel Required: Yes Position Summary We are seeking an experienced Network Engineer (Nexus/ACI) ? L3 with deep hands-on expertise in Cisco Nexus switches and Cisco ACI (Application Centric Infrastructure) . The selected candidate will act as a Resident Engineer , responsible for managing, troubleshooting, and optimizing Nexus and ACI environments to ensure seamless network performance and reliability across enterprise data centers. Key Responsibilities Deployment & Configuration Configure, deploy, and maintain Cisco Nexus switches and Cisco ACI fabrics for data center and enterprise environments. Integrate ACI with external devices such as firewalls, load balancers, and virtualization platforms. Implement advanced features like VXLAN EVPN, Service Graphs, Multi-Chassis Link Aggregation (MLAG), VMM Domain, and Fabric Path. Ensure proper integration with existing infrastructure during new deployments. Network Management & Optimization Monitor and manage Cisco Nexus/ACI environments to ensure high availability and optimal performance. Conduct capacity planning, performance tuning, and proactive maintenance. Utilize Python, Ansible, and REST APIs for network automation within ACI environments. Troubleshoot Nexus and ACI hardware/software issues and ensure timely resolution. Troubleshooting & Issue Resolution Provide L3-level technical support for complex network incidents. Perform root cause analysis (RCA) and implement corrective measures. Collaborate with cross-functional teams to resolve issues impacting infrastructure or business operations. Network Security & Compliance Ensure compliance with security standards and organizational policies. Implement ACI-based segmentation, access control policies, and other security best practices. Documentation & Reporting Maintain up-to-date documentation of network configurations, diagrams, and standard operating procedures. Provide regular reports on network health, incidents, and performance metrics. Stay current with emerging Cisco ACI and Nexus features, recommending upgrades and improvements where needed. Qualifications, Certifications & Experience Requirements Total Experience: 6+ years, including at least 3 years of hands-on experience managing Cisco Nexus/ACI environments. Experience managing large-scale data center networks for a minimum of 1 year. Strong understanding of data center technologies including Software-Defined Networking (SDN). Solid knowledge of Layer 3 protocols such as OSPF, BGP, VRF, and L3Out. Expertise with Cisco Nexus family (7000, 5000, 9000 series) and ACI APIC Controllers. Proficiency with tools such as Wireshark, NDB, NetFlow, and other network monitoring tools. Bachelor?s degree in Engineering, Computer Science, or Information Technology (or equivalent experience). Certifications (Preferred) Cisco CCNP Data Center, CCIE Data Center, or Cisco Certified ACI Specialist. Knowledge of EIGRP, MPLS, and other data center protocols is a plus. Soft Skills Strong analytical and troubleshooting abilities. Excellent communication and interpersonal skills to coordinate with multiple stakeholders. Ability to work independently, manage multiple priorities, and deliver within deadlines. Willingness to travel and provide on-site support as per business needs. Flexibility for after-hours or weekend maintenance activities when required. Preferred Skills Deep understanding of networking and switching fundamentals. Experience in configuring and maintaining ACI/Nexus environments. Strong verbal and written English communication skills. Skills: mlag,troubleshooting,cisco,vxlan,aci,nexus,infrastructure,data center,evpn