It Infrastructure Engineer - Hybrid / Flexible

LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy.Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide.With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation.Our global reach is matched by a culture that empowers innovation and long-term growth.We are looking for an experienced Senior Network Engineer to join our Global Infrastructure team.This role is responsible for designing, implementing, and supporting a global enterprise network across more than 100 international locations.You will partner with Infrastructure, Cloud, Security, OT, and local IT teams to deliver secure, scalable, and highly available networking solutions.Design, implement, and support global LAN/WAN infrastructure Deploy and support Palo Alto firewalls, VPNs and network segmentation Support cloud networking across Microsoft Azure and AWS Design and troubleshoot hybrid connectivity (VPN, ExpressRoute, cloud gateways) Support global ISP management, DIA, and SD-WAN connectivity Work with Cato Networks SASE and/or Palo Alto Prisma Access/Prisma SD-WAN architectures Lead office deployments, migrations and infrastructure refresh projects Support OT / Industrial network segmentation where applicable Produce technical documentation and network diagrams Mentor junior engineers and participate in technical leadershipRequired Technical SkillsEnterprise Networking- Cisco Catalyst- Cisco Nexus- VLANs, STP, EtherChannel- HSRP / VRRP- BGP, OSPF, Static RoutingSecurity- Palo Alto Firewalls- IPSec VPN- SSL VPN- NAT- ACLs- Network Segmentation- Zero TrustSASE / SD-WAN- Cato Networks- Palo Alto Prisma Access- Palo Alto Prisma SD-WAN- SD-WAN architecture- Secure Internet AccessWireless- Cisco Wireless- Meraki Wireless- *****X- Guest Access- Roaming optimizationCloud- Microsoft Azure Networking- Azure Virtual WAN- Azure VPN Gateway- ExpressRoute- AWS NetworkingAuthentication- Microsoft Entra ID- Active Directory- Cisco ISE- RADIUS- Certificate-based authenticationMonitoring & Automation- SolarWinds- LogicMonitor (preferred)- ThousandEyes- Python (preferred)- PowerShell (preferred)- REST APIs (preferred)Preferred CCNP Enterprise Microsoft Certified: Azure Network Engineer Associate Improve global network stability and availability Deliver infrastructure modernization projects Standardize global network architecture Strengthen cloud connectivity and security Collaborate effectively across Infrastructure, Security and Cloud teams.Bachelor’sdegreeinComputerScience,InformationTechnology,NetworkEngineering,Telecommunications,orarelatedfieldrequired.Timeime management abilitiesGood analytic skillsExcellent troubleshooting skillsHigh level of verbal and written english communication skillsHighly organized with strong attention to detail#LI-KRLAt Littelfuse, we support employee growth and development.We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.Full time

Secure Internet AccessWireless- Cisco Wireless- Meraki Wireless- *****X- Guest Access- Roaming optimizationCloud- Microsoft Azure Networking- Azure Virtual WAN- Azure VPN Gateway- ExpressRoute- AWS NetworkingAuthentication- Microsoft Entra ID- Active Directory- Cisco ISE- RADIUS- Certificate-based authenticationMonitoring & Automation- SolarWinds- LogicMonitor (preferred)- ThousandEyes- Python (preferred)- PowerShell (preferred)- REST APIs (preferred)Preferred CCNP Enterprise Microsoft Certified: Azure Network Engineer Associate Improve global network stability and availability Deliver infrastructure modernization projects Standardize global network architecture Strengthen cloud connectivity and security Collaborate effectively across Infrastructure, Security and Cloud teams. Bachelor’sdegreeinComputerScience,InformationTechnology,NetworkEngineering,Telecommunications,orarelatedfieldrequired. Timeime management abilitiesGood analytic skillsExcellent troubleshooting skillsHigh level of verbal and written english communication skillsHighly organized with strong attention to detail#LI-KRLAt Littelfuse, we support employee growth and development.

We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities. Full time

LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy. Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide. With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation. Our global reach is matched by a culture that empowers innovation and long-term growth.