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 general 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 global 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 802.1X, 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

Cato Networks

Palo Alto Prisma Access

Palo Alto Prisma SD-WAN

SD-WAN architecture

Secure Internet Access

Wireless

Cisco Wireless

Meraki Wireless

802.1X

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.

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📌 Sr. Network Engineer (Piedras Negras)
🏢 Littelfuse
📍 Piedras Negras