Senior Network Engineer

Euronet facilitates the movement of payments around the world, serving as a critical link between financial institutions, retailers, service providers, and their end consumers. Following Euronet’s acquisition of CoreCard, this is a unique opportunity to shape the future of card issuing and payment innovation while working with a global payments leader.

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.

• →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

• 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

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