Data Center Engineer– Cisco ACI L3

Data Center SME – Cisco ACI L3 Engineer

Company Overview

Enterone is seeking a highly skilled Data Center Subject Matter Expert specializing in Cisco Application Centric Infrastructure (ACI) to join our technical operations team in Mumbai, India.

Position Summary

We are looking for an experienced Cisco ACI L3 Engineer to lead the design, deployment, and operational support of enterprise-scale ACI fabrics. This role demands deep technical expertise in multi-datacenter network architectures, including Multi-Pod and Multi-Site deployments, along with advanced Layer-3 networking capabilities. The ideal candidate will serve as a subject matter expert, driving infrastructure excellence while supporting critical production environments.

Key Responsibilities

ACI Fabric Management

Design, deploy, configure, and maintain Cisco ACI fabrics across single pod, Multi-Pod, and Multi-Site architectures

Implement and manage ACI constructs including tenants, application profiles, bridge domains, VRFs, Endpoint Groups (EPGs), and contracts

Configure and optimize fabric policies, access policies, and security policies within APIC (Application Policy Infrastructure Controller)

Layer-3 Network Services

Design and implement L3Out configurations for external network connectivity

Configure and troubleshoot dynamic routing protocols including BGP and OSPF within ACI environments

Manage route leaking, route maps, and policy-based routing across VRF boundaries

Implement and support VXLAN / EVPN overlay technologies

Multi-Site Orchestration

Operate and maintain Cisco Nexus Dashboard Orchestrator (NDO) for multi-fabric policy orchestration and automation

Design stretched network services across geographically distributed data centers

Manage inter-site connectivity, site-to-site routing, and disaster recovery configurations

Operations & Support

Provide Level 3 technical support for incidents, outages, and performance degradation issues

Conduct root cause analysis (RCA) for complex underlay and overlay network problems

Monitor fabric health using APIC dashboards, syslog, SNMP, and streaming telemetry

Execute planned maintenance windows including ACI / APIC upgrades and patch management

Automation & Continuous Improvement

Develop automation scripts using Python, Ansible, or XML / JSON APIs to streamline operations

Implement Infrastructure-as-Code practices for ACI configuration management

Conduct regular health checks, capacity planning, and performance optimization reviews

Documentation & Governance

Create and maintain comprehensive technical documentation including network diagrams, runbooks, and standard operating procedures (SOPs)

Support change management processes and ensure compliance with ITIL best practices

Participate in design reviews, architecture discussions, and technical knowledge sharing sessions

Required Qualifications

Experience

3–5+ years of hands-on experience with Cisco ACI and Nexus 9000 series switches in production environments

Proven track record of managing large-scale data center networks with 24 / 7 uptime requirements

Experience with Multi-Pod and Multi-Site ACI deployments

Technical Skills

Expert-level knowledge of :

Cisco APIC GUI and CLI operations

Nexus Dashboard Orchestrator (NDO) / Multi-Site Orchestrator (MSO)

ACI fabric initialization, discovery, and topology management

Tenant networking : VRFs, bridge domains, EPGs, contracts, filters

L3Out configurations with BGP and OSPF

VXLAN and EVPN control / data plane operations

Strong troubleshooting skills in :

ACI underlay (IS-IS, MP-BGP) and overlay (VXLAN) issues

Endpoint learning, policy resolution, and forwarding behavior

Fabric interconnect and inter-pod / inter-site connectivity

Performance bottlenecks and packet flow analysis

Automation capabilities :

Scripting with Python (preferred) or other languages

Configuration management using Ansible

RESTful API interaction with ACI (XML / JSON)

Version control systems (Git)

Certifications (Preferred)

Cisco Certified Network Professional Data Center ( CCNP Data Center )

Cisco Certified Internetwork Expert Data Center ( CCIE Data Center ) – highly desirable

Cisco ACI specialization certifications

Additional Requirements

Strong analytical and problem-solving abilities

Excellent written and verbal communication skills

Ability to work in a fast-paced, mission-critical environment

Experience with ITIL processes and change management

Willingness to participate in on-call rotation and after-hours maintenance windows

Preferred Qualifications

Experience with Cisco Nexus Dashboard Insights (NDI) for analytics and troubleshooting

Knowledge of data center security technologies (firewalls, load balancers, microsegmentation)

Familiarity with VMware NSX, SD-WAN, or other data center technologies

Experience with monitoring and observability tools (Splunk, ELK, Grafana, Prometheus)

Understanding of DevOps / NetOps methodologies

What We Offer

Opportunity to work with cutting-edge data center technologies

Collaborative and innovative work environment

Professional development and certification support

(Additional benefits to be specified by company)

Location

Mumbai, India onsite

How to Apply

Interested candidates should submit their resume along with relevant certifications to (contact email / application portal).

Equal Opportunity Employer Statement

Enterone) is committed to creating a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, national origin, disability status, or any other characteristic protected by law.