Sr. OT Network Engineer - Princeton, IN

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