Senior Network Engineer Cisco ACI EXP

Accrescent Group; Florida; On-site; USD 110,000 - 165,000; Full time

Job summary

Accrescent Group in the United States is seeking a hands-on Senior Network Engineer to design, deploy and operate modern data center and campus networks, with deep expertise in Routing & Switching, Cisco ACI, and VxLAN/EVPN. The role emphasizes management of leaf-spine fabrics and SDN overlay strategies.

You will lead design and deployment, ensure high availability, and drive automation using Python, Ansible, CI/CD, or VMware NSX for overlay/SDN.

Qualifications

• Bachelor’s in CS/EE/IT or equivalent experience.
• Certifications (preferred): CCNP/CCIE, JNCIP/JNCIE, Arista ACE, VMware VCP-NV.
• 8+ years of network engineering experience; 4+ years hands‑on VxLAN/EVPN.

Responsibilities

• Design and implement L2/L3 networks across DC and campus environments.
• Lead ACI/VxLAN/EVPN fabric designs (Multi-pod/Multisite, route types, control-plane considerations).
• Create high-availability designs (ECMP, MLAG/vPC, BGP/OSPF/IS-IS).
• Configure and maintain leaf-spine architectures, border gateways, and interconnects.
• Troubleshoot complex issues across underlay/overlay, control plane, and data plane.
• Perform capacity planning, performance tuning, and proactive monitoring.

Skills

Routing & Switching

VxLAN/EVPN

Cisco ACI

NetDevOps/Automation

Python

Ansible

VMware NSX

CI/CD

Git

NetBox/Nautilus

Education

Bachelor’s in CS/EE/IT

Tools

Nautilus

NetBox

Prometheus

Grafana

SNMP

gNMI

pyATS

NAPALM

GitHub Actions

GitLab CI

Job description

We are seeking a hands‑on Senior Network Engineer one of a client with deep expertise in Routing & Switching, Cisco ACI, and VxLAN/EVPN (must-have). The ideal candidate will lead the design, deployment, and operations of modern data center and campus networks and bring strong capabilities in either NetDevOps/Automation (Python, Ansible, CI/CD) or VMware NSX for overlay/SDN.

Job Description

Architecture & Design

• Design and implement L2/L3 networks across DC and campus environments.
• Lead ACI/VxLAN/EVPN fabric designs (Multi-pod/Multisite, route types, control-plane considerations).
• Create high-availability designs (ECMP, MLAG/vPC, BGP/OSPF/IS-IS).

Deployment & Operations

• Configure and maintain leaf-spine architectures, border gateways, and interconnects.
• Troubleshoot complex issues across underlay/overlay, control plane, and data plane.
• Perform capacity planning, performance tuning, and proactive monitoring.

Skill Requirements

• Bachelor’s in CS/EE/IT or equivalent experience.
• Certifications (preferred): CCNP/CCIE, JNCIP/JNCIE, Arista ACE, VMware VCP-NV.
• Experience: 8+ years in network engineering; 4+ years hands‑on VxLAN/EVPN.

Must-Have Skills

• Routing & Switching: BGP, OSPF/IS-IS, eBGP/iBGP, route redistribution, policy-based routing, QoS.
• Data Center Fabrics: VxLAN/EVPN (mandatory) with practical experience in DC leaf‑spine design.
• Vendor Proficiency: One or more—Cisco (Nexus/IOS-XE), Arista EOS, Juniper QFX/EX.
• Troubleshooting: Packet analysis, control‑plane convergence, FIB/ARP/ND, MTU/MSS, ECMP.
• Preferred - NetDevOps / Automation / Python (requests, netmiko/paramiko, NAPALM, pyATS).
• Ansible (Jinja2, inventories, roles).
• Version control (Git).
• CI/CD (GitHub Actions/GitLab CI).
• Network source of truth (Nautilus/NetBox).
• Telemetry/observability (SNMP, gNMI, streaming telemetry, Prometheus, Grafana).
• VMware NSX (SDN) / NSX‑T design and operations: T0/T1 gateways, segments, overlay transport zones, Distributed firewall, security groups, micro‑segmentation, Integration with physical gateways, north‑south routing, Edge clusters, load balancer, policy automation.

Nice‑to‑Have

• EVPN route types (RT-2/RT-5), IRB, symmetric/asymmetric routing.
• Multisite/Multipod EVPN, DCI, MPLS L3VPN.
• SD-WAN (Viptela, Prisma, Fortinet).
• Cloud networking (AWS TGW, Azure vWAN, GCP VPC).
• Firewalls (Palo Alto, Fortinet, Cisco ASA/FTD).
• NAC (ISE/Aruba ClearPass).