Network Administrator

Steel-Dynamic; Columbus (MS); Presencial; USD 70.000 - 110.000; Jornada completa

Descripción de la vacante

Steel Dynamics is seeking an experienced network professional to own the Cisco-based network infrastructure across our Columbus, MS offices, data center, and plant environments. This hands-on role focuses on reliability, security, and growth within a manufacturing setting.

You will administer Cisco routers, switches, wireless controllers, and firewalls; manage VPNs to remote sites; plan VLANs and inter-VLAN routing; monitor health, analyze logs, and lead root-cause analysis for complex issues.

Formación

• Hands-on Cisco expertise required.
• Experience with TCP/IP, VLANs, DNS, DHCP.
• Experience configuring firewalls and VPNs.
• Strong documentation and communication skills.
• Ability to work in an active industrial environment.
• Valid driver's license.
• Associate degree in IT required.

Responsabilidades

• Administer, configure, and maintain Cisco routers, Catalyst switches, wireless LAN controllers and firewalls across office, data center, and plant environments.
• Manage Cisco firewall and VPN connectivity to remote sites.
• Implement VLANs, trunking, spanning tree, and inter-VLAN routing per change management procedures.
• Proactively monitor network health and performance, analyze logs and alerts, and lead troubleshooting and root-cause analysis for complex connectivity, latency, and outage issues.
• Support plant-floor and OT networks, partnering with OT and controls engineers to keep production systems connected, segmented, and secure.
• Plan and execute maintenance, IOS upgrades, hardware refreshes, and expansion projects.
• Oversee installation of switches, access points, optics, and fiber/copper cabling.
• Maintain accurate network documentation, including device inventory, IP addressing, VLANs, switch-port records, uplinks, configuration backups, and diagrams.
• Apply network security best practices, including ACLs, port security, segmentation, and configuration standards.
• Coordinate with system administrators, vendors, service providers, and end users, and mentor junior IT staff.
• Occasional night and weekend work required.

Conocimientos

Cisco IOS/IOS-XE

Catalyst switching

Routing

Wireless

TCP/IP

Subnetting

VLANs

Spanning Tree

DNS/DHCP

Firewalls/VPN

Monitoring tools

Documentation

Communication

Self-starter

Educación

Associate degree in IT

Bachelor's degree in IT

Descripción del empleo

Subsidiary

Steel Dynamics

Overview

Own the day-to-day operation, reliability, and growth of the Cisco-based network infrastructure across the division's offices, data center, and manufacturing plant. This is a hands-on role for a network professional with strong Cisco skills who is comfortable

supporting networks in a manufacturing environment.

Responsibilities

• Administer, configure, and maintain Cisco routers, Catalyst switches, wireless LAN controllers and access points, and firewalls across office, data center, and plant environments
• Manage Cisco firewall and VPN connectivity to remote sites
• Implement VLANs, trunking, spanning tree, and inter-VLAN routing per change management procedures
• Proactively monitor network health and performance, analyze logs and alerts, and lead troubleshooting and root-cause analysis for complex connectivity, latency, and outage issues
• Support plant-floor and OT networks, partnering with OT and controls engineers to keep production systems connected, segmented, and secure
• Plan and execute maintenance, IOS upgrades, hardware refreshes, and expansion projects
• Oversee installation of switches, access points, optics, and fiber/copper cabling
• Maintain accurate network documentation, including device inventory, IP addressing, VLANs, switch-port records, uplinks, configuration backups, and diagrams
• Apply network security best practices, including ACLs, port security, segmentation, and configuration standards
• Coordinate with system administrators, vendors, service providers, and end users, and mentor junior IT staff
• Occasional night and weekend work required

Qualifications

• Strong, hands-on Cisco expertise, including IOS/IOS-XE CLI, Catalyst switching, routing, and wireless
• In-depth knowledge of TCP/IP, IPv4 addressing and subnetting, VLANs, trunking, spanning tree, DNS, and DHCP
• Experience configuring and supporting firewalls, VPNs, and network segmentation
• Proficiency with network monitoring and troubleshooting tools, and a structured, evidence-based approach to diagnosing problems
• Strong documentation habits and clear communication skills with both technical and non-technical audiences
• Self-starter who works well independently and as part of a team
• Ability to work in an active industrial environment, including heat, noise, required PPE, use of lifts, network closets, and walking long distances through active production areas
• Valid driver's license
• Associate's degree in an IT-related field

Preferred:

• Cisco CCNA certification strongly preferred; CCNP a plus
• 6-8 years of progressive network administration or engineering experience, with significant time supporting networks in a manufacturing or industrial setting
• Experience with Cisco Unified Communications Manager (CUCM)
• Experience with Cisco Industrial Ethernet (IE) switches
• Hands-on experience with fiber optics, SFP modules, and wireless site surveys
• Experience supporting network buildouts for new facilities or major plant expansions
• Bachelor's degree in an IT-related field

Steel Dynamics, Inc., and all affiliated entities are equal opportunity employers.