Sr. OT Network Engineer - Princeton, IN

Toyota Tsusho Systems US, Inc.; Princeton (IN); On-site; USD 120,000 - 150,000; Full time

Job summary

Toyota Tsusho Systems US, Inc. is seeking a Sr. OT Network Engineer to join the System Solution team onsite. The role emphasizes hands-on OT and enterprise networking in manufacturing environments, delivering secure network solutions with zero unplanned downtime.

The ideal candidate has 10+ years in network engineering, strong OT cybersecurity knowledge, and the ability to bridge IT and plant engineering teams to ensure reliable, scalable networks and successful project execution.

Qualifications

• Bachelor's degree in electrical/computer engineering or CS or equivalent experience.
• 10+ years of progressive network engineering experience.
• Experience supporting OT, industrial, or manufacturing networks.
• Strong knowledge of enterprise networking and secure design.
• Ability to collaborate across IT and plant teams.
• Experience in high-availability environments and operational support.
• Strong communication with technical and non-technical stakeholders.

Responsibilities

• Serve as onsite OT network engineer for initiatives.
• Lead deployment and adoption of OT network infrastructure.
• Design and implement secure, resilient networks for industrial environments.
• Ensure OT cybersecurity requirements, IDMZ, and access controls.
• Provide escalation support and coordinate with vendors.
• Mentor local IT support and operational staff on OT networking.
• Contribute to project planning, cutovers, and readiness.
• Translate business and production needs into network solutions.

Skills

OT networking

Enterprise networking

High availability

Collaboration

Mentor/Trainer

Education

Bachelor's degree in EE/CE/CS

Tools

CCNA

CCNP

CISSP

IDMZ concepts

Job description

About TTS-US:

Founded in 2011, Toyota Tsusho Systems US, Inc. (TTS-US) is a Toyota group company, that develops IT solutions wherever global businesses operate. Transforming into a technology and mobility company, TTS-US with it's 8 TTS affiliates worldwide is establishing a secure and resilient Toyota global value chain. The creative capacity to forge such limitless business opportunities is one of the strengths of Toyota Tsusho Systems.

Position Summary:

We are seeking a highly motivated and experienced Sr. OT Network Engineer with over 10 years of experience to join our dynamic System Solution team. This position is ideal for a candidate a hands-on network professional with strong OT and enterprise networking experience, proven ability to work in manufacturing environments, and a collaborative approach to supporting both technical teams and non-technical stakeholders. The successful candidate will be responsible for onsite serves as a key technical resource and liaison between IT and plant engineering to ensure OT network solutions are delivered securely, efficiently, and with zero unplanned downtime.

Requirements

Essential Functions:

Description / Essential Functions:

• Serve as the onsite network engineer for OT-related initiatives
• Lead the deployment and adoption of OT network infrastructure
• Support the design and implementation of secure, resilient network architectures for industrial and manufacturing environments
• Ensure OT cybersecurity requirements are incorporated into network solutions, including segmentation, IDMZ, and access control practices
• Provide escalation support for network incidents and coordinate issue resolution with internal teams and vendors as needed
• Assist with network standards, implementation practices, and documentation for OT environments
• Mentor and train local IT support teams and operational staff on OT network fundamentals and troubleshooting
• Contribute to project planning, cutovers, maintenance activities, and operational readiness
• Collaborate with stakeholders to translate business and production requirements into effective network solutions

Technology Scope

Candidates should have experience with a broad mix of enterprise and OT networking technologies, including:

• Enterprise LAN/WAN networks
• OT / industrial network environments
• Network segmentation and secure network design
• IDMZ architecture
• Firewalls and secure connectivity
• VLANs, routing, switching, and redundancy
• Network monitoring and troubleshooting
• Wireless networking in industrial or manufacturing settings
• High availability network design
• Support for plant-floor, automation, and edge-connected systems
• Industrial network connectivity and protocols

Minimum qualification:

Required Education & Experience:

• Bachelor's degree in electrical engineering, computer engineering, computer science, or related field; and/or commensurate work experience
• 10+ years of progressive network engineering experience
• Experience supporting OT, industrial, or manufacturing network environments
• Strong knowledge of enterprise networking and secure network design
• Demonstrated ability to collaborate across IT and plant teams
• Experience troubleshooting complex network issues in high-availability environments
• Strong communication and interpersonal skills, with the ability to work effectively with technical and non-technical stakeholders
• Experience supporting deployments, maintenance windows, cutovers, and operational support activities
• Ability to train and mentor support personnel and operational teams
• Strong ownership mindset and ability to drive tasks through completion

Preferred Qualifications:

• Experience in manufacturing, industrial, or plant-floor environments
• Familiarity with OT cybersecurity concepts, IDMZ, and segmentation strategies
• Experience with automation, controls, or industrial systems networking
• Background supporting large-scale OT network deployments or plant modernization efforts
• Experience working with production engineering, maintenance, and operations teams
• Certifications such as CCNA, CCNP, CISSP, or other networking/security credentials
• Experience developing network standards, deployment procedures, or architecture guidance for OT environments

Position Type/Expected Hours of Work:

• Onsite contract: Standard business hours
• Occasional after-hours or weekend work may be required based on business needs
• Limited travel expected