Network Support Engineer – OT / Manufacturing

Job Description: Network Support Engineer – OT / Manufacturing

Number of Openings: 4
Work Environment: Manufacturing Plant / Onsite Support
Job Type: Full-Time

Job Summary

We are seeking a Network Support Engineer to support and troubleshoot network infrastructure within a manufacturing plant environment. The ideal candidate will have hands-on knowledge of network switches, basic routing, VLANs, enterprise network connectivity, and fiber-optic troubleshooting. The role involves supporting network-connected industrial devices, identifying connectivity issues, monitoring network performance, and ensuring reliable communication across the plant network.

Key Responsibilities

• Provide onsite network support for manufacturing plant infrastructure and operational technology (OT) networks.
• Configure, monitor, and troubleshoot Layer 2 and Layer 3 switches and basic routing configurations.
• Support VLAN configuration, access and trunk ports, Spanning Tree Protocol (STP), and EtherChannel.
• Troubleshoot Ethernet connectivity, MAC address learning, IP addressing, subnetting, and network communication issues.
• Perform fiber-optic cable troubleshooting using Optical Time-Domain Reflectometer (OTDR) testing and other appropriate diagnostic tools.
• Identify and resolve fiber connectivity issues, signal loss, cable breaks, and network link failures.
• Troubleshoot end-to-end network connectivity between switches, routers, network devices, and connected manufacturing equipment.
• Monitor network performance, investigate high CPU utilization on network devices, and identify potential software, configuration, or traffic-related issues.
• Use IT Service Management (ITSM) ticketing systems and network monitoring tools to track incidents, document findings, and resolve network issues.
• Assist with network incident management, root cause analysis, escalation, and preventive maintenance.
• Understand enterprise network architecture, including switches, routers, firewalls, access points, servers, and connected endpoint devices.
• Maintain network documentation, including High-Level Design (HLD), Low-Level Design (LLD), network diagrams, configurations, and troubleshooting procedures.
• Coordinate with IT infrastructure teams, plant operations, and other technical teams to maintain network availability.

Required Technical Skills

• Basic routing and switching concepts.
• Layer 2 and Layer 3 switches.
• VLANs, access ports, and trunk ports.
• MAC address tables and switch forwarding behavior.
• Spanning Tree Protocol (STP) and EtherChannel.
• IP addressing, subnetting, default gateways, and basic routing protocols.
• Fiber-optic connectivity and OTDR testing fundamentals.
• Ethernet cabling and end-to-end network troubleshooting.
• Network device CPU utilization and performance troubleshooting.
• ITSM tools and network monitoring applications.
• Understanding of enterprise network architecture and HLD/LLD documentation.

Preferred Qualifications

• Experience supporting networks in manufacturing, industrial, warehouse, or plant environments.
• Familiarity with Operational Technology (OT) networks and industrial network-connected devices.
• Experience with network monitoring, incident management, and ticketing systems.
• Ability to diagnose network connectivity issues independently and document troubleshooting steps.
• Strong communication, analytical, and problem-solving skills.

Job Type: Full-time

Pay: $22.00 - $25.00 per hour

Benefits:

• 401(k)
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

Experience:

• DHCP: 3 years (Required)
• DNS: 3 years (Required)
• ServiceNow: 3 years (Required)
• Network support: 3 years (Required)

Work Location: In person

Salary : $22 - $25