Note: The job is a remote job and is open to candidates in USA. Dice is seeking a Lead Consultant - OT Network Device Engineer for a remote opportunity. The engineer will support a manufacturing customer's OT network device environment, focusing on troubleshooting network connectivity issues and providing reactive support for OT network devices.
Responsibilities
- Provide remote reactive support for assigned OT network device tickets through the customer's existing ticketing process
- Troubleshoot Ewon remote access connectivity issues, including device reachability, loss of connectivity, access path validation, and coordination with customer or site contacts when onsite action is required
- Troubleshoot OT switches, firewalls, VLANs, interfaces, routing handoffs, firewall rules, and basic OT network connectivity issues
- Support connectivity troubleshooting south of the IT/OT firewall, up to the OT network device interface
- Work with customer IT resources when issues involve dependencies such as Cisco ISE, firewall policy, SD-WAN, routing, remote access, endpoint/network access control, or other shared IT/OT infrastructure
- Review available site diagrams, network documentation, device inventories, access methods, and site contact information
- Use available time between tickets to support initial site/device discovery, documentation review, and identification of recurring support patterns
- Help identify candidate sites for future onboarding into proactive monitoring and subscription support
- Document troubleshooting actions, findings, risk areas, support gaps, and recommended follow-up actions
- Operate within agreed support boundaries, change-control expectations, escalation paths, and customer approval processes
- Escalate issues outside the agreed scope, including PLCs, SCADA, HMIs, historians, production applications, vendor-managed systems, industrial control system logic, and production process issues
Skills
- Strong hands-on network troubleshooting experience with switches, firewalls, VLANs, trunk/access ports, routing basics, ACLs, interface troubleshooting, and remote connectivity
- Experience supporting network equipment in manufacturing, industrial, plant, or OT-adjacent environments
- Cisco networking experience, including switch troubleshooting/configuration and coordination with firewall or access-control teams
- Ability to troubleshoot remote access issues involving Ewon or similar industrial/vendor remote access appliances
- Ability to distinguish OT network device issues from PLC, SCADA, HMI, production application, or industrial control system issues
- Comfortable working in environments with incomplete documentation, inconsistent site maturity, and mixed local technical capability
- Strong documentation skills, including the ability to capture troubleshooting steps, device information, site notes, escalation paths, and recurring issue patterns
- Ability to communicate clearly with service desk teams, IT network teams, site personnel, vendors, OT stakeholders, and non-networking resources who may be assisting locally
- Strong understanding of change-control discipline in production or plant environments, including the need for approval before production-impacting changes
- Experience with Cisco Industrial Ethernet platforms, Cisco IE-series switches, or similar industrialized networking equipment
- Familiarity with Rockwell/Stratix-adjacent environments and industrial networking concepts
- Understanding of Purdue Model concepts and practical IT/OT demarcation boundaries
- Familiarity with industrial protocols and networking behaviors such as EtherNet/IP, PTP/CIP Sync, DLR/REP ring resiliency, QoS, and OT segmentation concepts
- Experience with Cisco ISE, TrustSec/SGT, Catalyst Center, Cisco Cyber Vision, ThousandEyes, Secure Equipment Access, Claroty or similar visibility, access-control, or monitoring platforms
- Ability to produce or update basic L2/L3 diagrams, port maps, VLAN summaries, device inventories, connectivity notes, and as-built documentation
- Experience operating under pre-check, post-check, rollback planning, and controlled maintenance/change windows in production environments
Benefits
- Medical, Dental, Life Insurance, 401K.
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