OT Onsite Field Engineer — Deployment & Support

EY; Grand Rapids (MI); On-site; USD 105,000 - 192,000; Full time

Job summary

EY is seeking an Onsite Field Support Engineer – OT to enable site readiness, coordinate infrastructure, onboard assets, validate deployments, troubleshoot issues, document, and manage the handoff to steady-state support in operational technology environments.

The role requires broad technical capability across infrastructure, networking, endpoint support, and practical OT environments, with strong problem-solving, field execution discipline, and collaboration with site personnel, engineering

Qualifications

• Bachelor's degree in Information Technology, Engineering, Cybersecurity, Computer Science, or equivalent technical experience preferred.
• 5+ years of experience in field support, infrastructure support, networking, cybersecurity, industrial technology, or implementation roles.
• Experience supporting site-based technology deployments, infrastructure implementation, or operational readiness activities.
• Working knowledge of networking fundamentals, IP addressing, VLANs, routing/switching concepts, and connectivity troubleshooting.
• Ability to work in manufacturing, laboratory, industrial, or operational environments where safety, production continuity, and site coordination are important.

Responsibilities

• Site onboarding, implementation readiness, and deployment activities for OT and industrial environments.
• Assistance with site surveys, readiness checks, deployment logistics, and implementation preparation.
• Coordinate local field activities with project teams, engineering resources, site personnel, vendors, and support teams.
• Identify access issues, site constraints, environmental limitations, and technical dependencies that may affect implementation.
• Installation, validation, and troubleshooting of network and security infrastructure.
• Connectivity checks, cabling coordination, device placement, switchport identification, VLAN/IP information gathering, and basic network troubleshooting.
• Validate communication paths between OT assets, site infrastructure, monitoring platforms, and approved network/security services.
• Coordinate with specialized engineering teams when configuration, architecture, or advanced troubleshooting support is required.
• Identification, validation, and documentation of OT assets and supporting infrastructure.
• Asset inventory reconciliation, ownership validation, and documentation updates.
• Onboarding assets into approved monitoring, visibility, or support platforms where applicable.
• Validate asset connectivity and basic operational readiness after implementation activities.
• Support implementation testing, connectivity validation, readiness reviews, and defect tracking.
• Hands‑on troubleshooting for connectivity, endpoint, OT asset, infrastructure, and deployment‑related issues.
• Coordinate escalation to engineering, architecture, vendor, or operations teams as needed.
• Support post‑implementation stabilization and early‑life support activities.

Skills

Troubleshooting

Documentation

Communication

Coordination

Networking basics

IP addressing

VLANs

Routing & Switching

Education

Bachelor's degree in Information Technology, Engineering, Cybersecurity, Computer Science, or equivalent technical experience preferred

Tools

Switches

Firewalls

Monitoring tools

Endpoint connectivity

Job description

EY is seeking an Onsite Field Support Engineer – OT to enable site readiness, coordinate infrastructure, onboard assets, validate deployments, troubleshoot issues, document, and manage the handoff to steady-state support in operational technology environments.

The role requires broad technical capability across infrastructure, networking, endpoint support, and practical OT environments, with strong problem-solving, field execution discipline, and collaboration with site personnel, engineering