Senior Network Engineer - Cisco ACI & Data Center Networking
First seen by Alion on Oct 17, 2026.
Job Summary :
We are looking for highly skilled L3 Network Engineers with strong hands-on expertise in Cisco Application Centric Infrastructure (ACI), Cisco Nexus switching, and data center networking.
Candidates must have substantial practical experience in Cisco ACI implementation, configuration, troubleshooting, and production support, along with strong Layer 2 / Layer 3 networking expertise.
Mandatory Technical Skills :
- Cisco ACI with 5+ years of hands-on experience
- Cisco Nexus 9000 / 7000 series
- Data Center Networking and Infrastructure
- Layer 2 / Layer 3 routing and switching
- VXLAN EVPN and MP-BGP
- LAN/WAN networking
- Relevant Cisco certification as specified below
Key Responsibilities :
- Provide L3 technical support for complex network incidents and critical production issues.
- Monitor network infrastructure and respond to network management system alerts.
- Install, configure, troubleshoot, and support Cisco ACI infrastructure.
- Design, validate, and implement network configuration changes.
- Execute legacy network-to-ACI migration projects.
- Work on ACI Multi-Pod, Multi-Site, VMM integration, micro-segmentation, and L4-L7 services.
- Troubleshoot routing protocols including BGP, OSPF, EIGRP, IS-IS, and Multicast.
- Prepare implementation plans, test plans, migration documentation, and rollback plans.
- Collaborate with cross-functional teams and customer stakeholders to resolve complex issues.
- Support a 24x7 operational environment as required.
Preferred Technical Expertise :
- Cisco Nexus Dashboard
- Banking or financial services data center networking
- ACI fabric architecture and network solution design
- Advanced troubleshooting and migration execution
Certifications :
- CCNP Enterprise / Data Center or CCIE Data Center. CCIE certification is highly desirable. The exact qualifying certification must be verified during screening.
Candidate Requirements :
- 8 - 10 years of overall network engineering experience.
- Minimum 5 years of practical Cisco ACI experience.
- Strong expertise in data center networking and L3 support.
- Excellent communication, troubleshooting, and technical documentation skills.
- Willingness to work in a 24x7 support environment.
Skills
Network Architect, BGP, CCIE, CCNP, Application Centric Infrastructure, Nexus Network, Cisco, Network Protocols, LANDesk, Datacenter