Senior Network Engineer

Corpay•Atlanta, GA

3d•Onsite

About The Position

Corpay is hiring a Senior Network Engineer to design, implement, secure, operate, and support a global enterprise network. This hands-on senior technical role covers Cisco routing and switching, firewalls, remote-access VPN, F5 load balancing, network automation, wireless, network access control, and security-policy management. The engineer will support network operations, projects, troubleshooting, and security and compliance initiatives, working independently and in collaboration with infrastructure, security, cloud, help desk, application, and other internal teams. The position reports to the Global Network Director and is based onsite at Corpay’s Peachtree Corners office five days per week. The role includes participation in an on-call rotation and occasional after-hours maintenance or incident response. Corpay provides an assigned office workspace, company-issued equipment, and formal hands-on training. The successful candidate will help maintain secure, reliable network connectivity; support audit and regulatory initiatives; document network designs and operations; and lead or participate in upgrades, migrations, acquisitions, and new-site deployments.

Requirements

Bachelor’s degree in Information Technology, Computer Science, or a related field; equivalent professional experience will be considered.
At least 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 NetBrain, AlgoSec, or comparable network automation, policy-management, or topology-mapping tools.
Experience with enterprise wireless and network-access control solutions, preferably Aruba/HP ClearPass 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 technical issues to technical and non-technical stakeholders.
Strong troubleshooting and analytical skills; ability to prioritize multiple incidents, projects, and operational responsibilities.
Sound judgment when balancing security, availability, performance, and business requirements.
Ownership mentality, ability to work independently, and a collaborative, service-oriented approach with internal customers and technology partners.
Commitment to maintaining current technical knowledge and recommending practical improvements.
Ability to work onsite at the Peachtree Corners office five days per week and participate in an on-call rotation and planned maintenance support when needed.

Nice To Haves

Cisco certifications such as CCNP Enterprise, CCNP Security, or CCIE.
F5 Certified Technology Specialist (CTS) certification or comparable F5 experience.
Experience with Cisco FMC, Secure Firewall, Secure Workload, Meraki, ThousandEyes, or SD-WAN.
Experience with ServiceNow, automation workflows, Python, Ansible, REST APIs, or infrastructure-as-code practices.
Experience supporting cloud networking in AWS and/or Microsoft Azure.
Experience in a regulated environment, particularly PCI DSS, financial services, or payment processing.
Experience with Zscaler, SASE, zero-trust, segmentation, or security-compliance tooling.

Responsibilities

Design, implement, operate, and troubleshoot enterprise LAN, WAN, Internet edge, data center, and remote-site networks.
Configure and support Cisco routers, Catalyst and Nexus switches, ASA firewalls, and Cisco Secure Firewall Threat Defense appliances managed through FMC.
Support routing and switching technologies, including BGP, OSPF, EIGRP, VLANs, HSRP/VRRP, port channels, QoS, multicast, and network segmentation.
Administer and troubleshoot firewall access-control policies, NAT, intrusion policies, site-to-site VPNs, remote-access VPNs, and SSL VPN/SAML integrations.
Manage F5 BIG-IP LTM services, including virtual servers, pools, monitors, SSL profiles, persistence, iRules, traffic troubleshooting, and high availability.
Support wireless infrastructure, including WLAN design, access-point deployment, SSIDs, authentication, guest access, and troubleshooting.
Administer network access control solutions such as Aruba/HP ClearPass or equivalent, including 802.1X, RADIUS, TACACS+, device profiling, and guest/BYOD access.
Use NetBrain or equivalent tools for network discovery, documentation, mapping, automation, and troubleshooting.
Use AlgoSec or equivalent firewall-policy management tools to analyze, validate, document, and implement firewall changes.
Partner with Security, Infrastructure, Cloud, Help Desk, and application teams to deliver secure, reliable connectivity.
Participate in PCI, audit, vulnerability-remediation, and network-segmentation initiatives.
Create and maintain network diagrams, standards, operational procedures, implementation plans, and support documentation.
Lead or participate in network upgrades, migrations, acquisitions, and new-site deployments.
Analyze complex network incidents, perform root-cause analysis, and recommend long-term corrective actions.
Participate in an on-call rotation and provide support during planned maintenance windows when needed.
Work within formal change-management, incident-management, and problem-management processes.