Littelfuse (NASDAQ: 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.
Guided by our principles We Care, We Succeed With Our Customers, and We Own the Outcome, we work collaboratively, think boldly, and deliver solutions that move industries forward.
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.
About Your Job
Design, implement, and support integral LAN/WAN infrastructure
Manage enterprise routing, switching and wireless environments
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
Maintain Cisco Catalyst, Cisco Nexus and Meraki environments
Implement *****X, Cisco ISE, RADIUS and Zero Trust initiatives
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 leadership
Required Technical Skills
Enterprise Networking - Cisco Catalyst - Cisco Nexus - VLANs, STP, EtherChannel - HSRP / VRRP - BGP, OSPF, Static Routing
Security - Palo Alto Firewalls - IPSec VPN - SSL VPN - NAT - ACLs - Network Segmentation - Zero Trust SASE / SD-WAN




SASE / SD-WAN - Cato Networks - Palo Alto Prisma Access - Palo Alto Prisma SD-WAN - SD-WAN architecture - Secure Internet Access
Wireless - Cisco Wireless - Meraki Wireless - *****X - Guest Access - Roaming optimization
Cloud - Microsoft Azure Networking - Azure Virtual WAN - Azure VPN Gateway - ExpressRoute - AWS Networking
Authentication - Microsoft Entra ID - Active Directory - Cisco ISE - RADIUS - Certificate-based authentication
Monitoring & Automation - SolarWinds - LogicMonitor (preferred) - ThousandEyes - Python (preferred) - PowerShell (preferred) - REST APIs (preferred)
Preferred Certifications
CCNP Enterprise
PCNSE
Microsoft Certified: Azure Network Engineer Associate
CCIE Enterprise (preferred, not required)
What Success Looks Like
Improve global network stability and availability
Deliver infrastructure modernization projects
Standardize global network architecture
Strengthen cloud connectivity and security
Reduce operational complexity through automation
Collaborate effectively across Infrastructure, Security and Cloud teams.
About You
7+ years of experience.
Bachelor's degree in Computer Science, Information Technology, Network Engineering, Telecommunications, or a related field required.
Master's degree preferred.
Equivalent combination of education and relevant experience may be considered.
Strong foundation in enterprise networking, network security, cloud networking, and infrastructure architecture.
Timeime management abilities
Good analytic skills
Excellent troubleshooting skills
High level of verbal and written english communication skills
Highly organized with strong attention to detail
At Littelfuse, we support employee growth and development.
Guided by our culture principles, our teams work together to deliver value for customers and make a positive impact in the communities where we operate.




We are an equal opportunity employer committed to fostering an inclusive workplace where everyone has the opportunity to grow and contribute.
We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.
Our humble roots date back to ****, where, in the back of a garage on Chicago's northside, our founder, Edward Sundt, developed a small, fast-acting, protective fuse for use in sensitive test meters.
Sundt wanted to call his new company producing these small fuses, "Little Fuse," but wasn't allowed to trademark two such common words.
So, instead he went with the one-word, misspelled "Littelfuse."
For more than 95 years, Littelfuse has pioneered innovative products that help empower a sustainable, connected, and safer world.
With the ever‐evolving electrification and electronification of customer applications, our product technologies are closely linked to sustainable applications such as electric vehicles and EV charging infrastructure, renewable energy and energy storage, factory automation, power management and more.
Throughout our history, our people have been the foundation of our success — and that remains true today.
Now more than ever, our bright and talented people are a strategic advantage for the company.
From the production line to the engineering lab, the office or distribution center, Littelfuse people are an important part of a diverse, talented team of the best and brightest in the industry.
While Littelfuse has experienced tremendous growth in recent years, we still maintain a small-company, entrepreneurial approach where your efforts will drive our culture, our business, and the overall success of the organization.
No matter where you work or what you do, your contributions will make a difference at Littelfuse — everywhere, every day.
Littelfuse is an Equal Opportunity/Affirmative Action employer.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, gender identity, sexual orientation, disability, protected veteran status, and/or any other protected class under federal, state, or local law.
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