Senior Enterprise Network Engineer - SASE, SD-WAN & Cloud

FirstKey Homes LLC; Atlanta (GA); On-site; USD 110,000 - 160,000; Full time

Job summary

FirstKey Homes LLC is seeking an Enterprise Network Engineer to design and operate the company’s global network across corporate offices, cloud environments and remote users. This hands-on engineering role focuses on secure, resilient, high-performing connectivity and standards-based modernization.

The role covers LAN/WAN/WLAN, SASE/SD-WAN, NAC and Azure networking, requiring collaboration with Infrastructure Operations and Cybersecurity to ensure security, performance and high availability.

Qualifications

• 5+ years of professional experience in enterprise networks.
• Strong knowledge of Layer 2 and Layer 3 networking fundamentals.
• Hands-on experience with enterprise routing and switching.
• Strong understanding of TCP/IP, Wireless & RADIUS Auth, VLANs, Spanning Tree, Link Aggregation, BGP and OSPF, DNS and DHCP, NAT, VPN, QoS, Network Segmentation & Access Control.
• Experience troubleshooting complex network and application connectivity issues.
• Strong experience supporting firewalls, SD-WAN/SASE, Software-Defined Networking.
• Experience in managing cloud-based networks such as within Microsoft Azure.
• Strong experience in working with Cisco Catalyst & Meraki.
• Experience implementing and managing Access Control solutions.
• CCNP or equivalent demonstrated enterprise networking knowledge.

Responsibilities

• Design, configure, maintain and troubleshoot enterprise LAN, WAN, WLAN and Internet connectivity.
• Manage enterprise routing and switching infrastructure; primarily Cisco Catalyst.
• Configure and troubleshoot VLANs, trunking, spanning tree, link aggregation, routing protocols, ACLs and network segmentation.
• Maintain high-availability in network connectivity across corporate and cloud networks.
• Perform network capacity planning, performance analysis and proactive improvement.
• Develop and maintain network diagrams, standards, configuration documentation and operational procedures.
• Administer and optimize the organization’s SASE environment.
• Support secure remote access, internet and cloud connectivity through the SASE platform.
• Troubleshoot routing, application performance, connectivity and policy issues across the WAN.
• Assist with continued migration from traditional network architecture toward SASE and a zero-trust model.
• Lead or significantly contribute to NAC implementation and administration.
• Develop an optimized network segmentation and access-control strategy for all corporate device classes.
• Implement and maintain 802.1X and related authentication technologies where applicable.
• Partner with Cybersecurity to implement network security policies, vulnerability remediation and network infrastructure hardening.
• Configure, maintain and troubleshoot enterprise wireless networks.
• Perform wireless performance analysis and assist with RF optimization, coverage capacity and troubleshooting roaming issues.
• Configure and troubleshoot VNets, subnets, routing, NSGs, VPN connectivity and related Azure networking services.
• Support connectivity between cloud resources, corporate networks, remote users and applicable third-party environments.
• Collaborate with Systems and Cloud Engineering teams on infrastructure projects requiring network design or connectivity.
• Serve as an escalation point for complex network incidents and performance issues.
• Perform packet captures, traffic analysis and systemic troubleshooting of network and application connectivity.
• Participate in root-cause analysis for significant infrastructure incidents.
• Monitor network health, availability, utilization and performance.

Skills

Network design

Cisco routing

WLAN/WiFi

SASE/SD-WAN

Azure networking

Network security

Troubleshooting

Documentation

NAC

CCNP

Education

CCNP or equivalent

Tools

Cisco Catalyst

Meraki

SD-WAN tools

Azure networking

Job description

FirstKey Homes LLC is seeking an Enterprise Network Engineer to design and operate the company’s global network across corporate offices, cloud environments and remote users. This hands-on engineering role focuses on secure, resilient, high-performing connectivity and standards-based modernization.

The role covers LAN/WAN/WLAN, SASE/SD-WAN, NAC and Azure networking, requiring collaboration with Infrastructure Operations and Cybersecurity to ensure security, performance and high availability.