Senior Network Engineer

Euronet Worldwide, Inc.•Norcross, GA

19h•Onsite

About The Position

CoreCard is seeking a Senior Network Engineer located in our Norcross (Atlanta) office. The Senior Network Engineer to support our 24x7 payment processing environments, where uptime targets are 99.999%. You'll be the go-to expert for production network operations and infrastructure projects, from strategy and deployment through troubleshooting and optimization. You'll work on mission-critical payment systems where your work directly affects reliability, security, and customer trust.

Requirements

5–10 years of network engineering experience, or a Bachelor's degree plus relevant experience
SonicWall and/or Fortinet firewall administration
Strong VPN design and configuration, both site-to-site and client-to-site
Cisco/Dell switch and router configuration, plus solid IP subnetting skills
Active Directory, Windows Server (2012+), DNS, DHCP, and GPO
VMware/ESXi administration (snapshots, storage, vSAN)
PCI environment and audit experience, vulnerability scanning, and patching
Microsoft Defender, endpoint security, and O365 administration

Nice To Haves

Network or infrastructure certifications
AWS or Azure experience
Vendor management and software licensing experience

Responsibilities

Troubleshoot complex LAN, WAN, and VPN connectivity issues
Maintain secure, high-availability payment processing and corporate infrastructure
Serve as subject matter expert and provisioning engineer on key projects
Analyze client networks and document physical and logical network diagrams
Build and improve network policies, procedures, and security standards
Provision and install hardware and software across end-user, corporate, and processing environments
Take part in on-call rotation and emergency response