OneMain Financial Jobs

Technical Support Engineer (OT) Location(s): Toledo, OH, US, 43659-0001 Function: Information Technology Audience: Experienced Professional Work Arrangement: Hybrid Requisition ID: 68255 PURPOSE OF THE JOB The Technical Support Engineer - Operational Technology (OT) is a handson technical specialist responsible for the reliability, performance, and OT network and firewall infrastructure across manufacturing facilities. The role focuses on incident response, maintenance, and proactive monitoring of OT networks and firewalls in close collaboration with plant engineers, IT/OT teams, and external vendors. Operating in a dynamic manufacturing environment, the engineer executes standard support processes to resolve network issues, maintain cybersecurity compliance, and continuously improve operational procedures. Success in this role requires strong foundational knowledge of OT networking and firewalls, along with a collaborative, servicefocused mindset. Reports to: GIS Director, Manufacturing Security & Infrastructure Span of Control: Individual contributor JOB RESPONSIBILITIES Knowing Our Businesses and their Strategies Develop and maintain a strong understanding of Owens Corning specific business processes and operations locally and globally Build relationships within the organization, cross-functionally, and with key business stakeholders; continuously enhance connection to remain aligned with core objectives Understand how IT/OT Security and services are directly aligned with the company's strategic objectives by regularly engaging with key business stakeholders Executing Strategy Maintenance and Troubleshooting Respond to incidents, requests, alerts, and outages to minimize operational downtime Perform preventive and corrective maintenance on OT network devices and firewalls Troubleshot OT network and security issues in collaboration with plant engineers, IT/OT teams, and vendors Review firewall and network logs; perform root cause analysis (RCA) and document findings for incidents Provide handson support and maintain playbooks for key OT network and security platforms (e.g., Palo Alto) Deliver metrics, monthly performance dashboards, and guidance on network health and monitoring tools Security/Network Performance Monitoring Monitor OT network and firewall performance using tools such as PRTG and NCM Configure dashboards, metrics, and alerting for plant and regional stakeholders Proactively identify and remediate misconfigurations, vulnerabilities, and performance issues Monitor network availability, utilization, throughput, latency, and OT backup solutions Manage and prioritize servicelevel tickets; escalate issues as needed Validate compliance with cybersecurity and network standards Partner with SOC and vendors to ensure systems are patched, updated, and aligned with supported code versions Standards and Processes Define, maintain, and continuously improve OT network and firewall SOPs Execute firewall and OT network change management, including impact assessment, testing, and rollback planning Support vendor platform oversight to minimize operational disruption Collaborate with plant teams and equipment vendors to understand network designs and change risk Oversee firewall commissioning and lifecycle management, including policy alignment, optimization, and cleanup Service Excellence Deliver consistent, reliable service aligned with service level expectations Collaborate with IT/OT support teams, produ