Senior Network Engineer

Corpay is currently looking to hire a Senior Network Engineer. In this role, the Senior Network Engineer will design, implement, secure, and support a global enterprise network environment. This role is hands-on and requires strong technical experience with Cisco routing, switching, firewalls, remote-access VPN, F5 load balancing, network automation, and network-security policy management.

The successful candidate will be a senior technical resource for network operations, projects, troubleshooting, and security/compliance initiatives. They must be comfortable working independently, collaborating with infrastructure and security teams, participating in change management, and supporting occasional after-hours maintenance or incident response. You will work with internal teams and report directly into the Global Network Director.

As a Senior Network Engineer, you will work in an onsite environment, reporting to our Peachtree Corners office location 5 days per week.

Corpay will set you up for success by providing:

• Assigned workspace in our Peachtree Corners office location
• Company-issued equipment
• Formal, hands-on training

The responsibilities of the role will include:

• Designing, implementing, operating, and troubleshooting enterprise LAN, WAN, Internet edge, data center, and remote-site networks.
• Configuring and supporting Cisco routers, Catalyst/Nexus switches, ASA firewalls, and Cisco Secure Firewall Threat Defense (FTD) appliances managed through FMC.
• Supporting routing and switching technologies including BGP, OSPF, EIGRP, VLANs, HSRP/VRRP, port channels, QoS, multicast, and network segmentation.
• Administering and troubleshooting firewall access-control policies, NAT, intrusion policies, site-to-site VPNs, remote-access VPNs, and SSL VPN/SAML integrations.
• Managing F5 BIG-IP LTM services, including virtual servers, pools, monitors, SSL profiles, persistence, iRules, traffic troubleshooting, and high availability.
• Supporting wireless infrastructure, including wireless LAN design, access-point deployment, SSIDs, authentication, guest access, and troubleshooting.
• Administering network access control solutions such as Aruba/HP Clear Pass or equivalent platforms, including 802.1X, RADIUS, TACACS+, device profiling, and guest/BYOD access.
• Using Net Brain or equivalent tools for network discovery, documentation, mapping, automation, and troubleshooting.
• Using Algo Sec or equivalent firewall-policy management tools to analyze, validate, document, and implement firewall changes.
• Partnering with Security, Infrastructure, Cloud, Help Desk, and application teams to deliver secure, reliable connectivity.
• Participating in PCI, audit, vulnerability-remediation, and network-segmentation initiatives.
• Creating and maintaining network diagrams, standards, operational procedures, implementation plans, and support documentation.
• Leading or participating in network upgrades, migrations, acquisitions, and new-site deployments.
• Analyzing complex network incidents, performing root-cause analysis, and recommending long-term corrective actions.
• Participating in an on-call rotation and provide support during planned maintenance windows when needed.

• Bachelor's degree in Information Technology, Computer Science, or related field; equivalent professional experience will be considered.
• 7+ years of progressively responsible enterprise network engineering experience.
• Strong hands-on experience with Cisco routers, switches, ASA, and FTD firewalls.
• Strong understanding of TCP/IP, DNS, DHCP, NAT, VLANs, routing, switching, and network-security principles.
• Strong experience with dynamic routing protocols, especially BGP and OSPF.
• Experience supporting enterprise VPN technologies, including site-to-site IPsec and remote-access SSL VPN.
• Experience with F5 BIG-IP LTM, including virtual servers, pools, monitors, SSL/TLS, and high-availability configurations.
• Experience with Net Brain, Algo Sec, or comparable network automation, policy-management, or topology-mapping tools.
• Experience with enterprise wireless and network-access control solutions, preferably Aruba/HP Clear Pass or equivalent.
• Ability to troubleshoot packet-level network and application connectivity issues using tools such as Wireshark, tcpdump, packet captures, and flow data.
• Experience working within formal change-management, incident-management, and problem-management processes.
• Strong written and verbal communication skills, including the ability to explain…