Sr. OT Network Engineer - Princeton, IN
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 8 October 2026.
About the role
Toyota Tsusho Systems's standard text
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
What this role asks for
In most of Toyota Tsusho Systems's ads
Cybersecurity
Named in most of its open postings, whatever the role.
88% of this description is written for the role. The rest is Toyota Tsusho Systems's standard text, folded away below.
Read against Toyota Tsusho Systems's other open postings on this site.
The team: CUSTOMER SUCCESS DIVISION HIRES STEADILY
This role is one of 4 open in CUSTOMER SUCCESS DIVISION. 1 was posted in the last 30 days and the oldest in August: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cisco (4 of 4), Cybersecurity (4 of 4), Networking (3 of 4)
OTHER ROLES ON THIS TEAM
- Principal Network Architect - Guadalajara, MX posted Sep 30
- Sr. OT Network Engineer - Georgetown, KY posted Aug 20
- Sr. OT Network Engineer - Liberty, NC posted Aug 20
From the team and dates on Toyota Tsusho Systems's own job board.
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