Sr. OT Network Engineer (Princeton, IN)
Princeton, Indiana
Contract
Design and strengthen the networks that keep industrial and manufacturing environments connected and secure. As a Senior OT Network Engineer, you’ll deliver and maintain operational technology infrastructure, apply network segmentation and zero-trust principles, and help ensure resilient plant-floor operations.
This is a hands-on technical leadership role for an engineer who can work across IT and plant teams. You’ll shape secure OT network architectures, lead Cisco SD-Access implementation, troubleshoot complex issues, and help other technical teams build confidence in OT networking and security.
- 10+ years of progressive network engineering experience, or equivalent practical experience.
- Hands-on experience with routing, switching, LAN/WAN, and high-availability network environments.
- Experience designing or securing OT networks in manufacturing, industrial, or plant-floor settings.
- Knowledge of network segmentation, zero-trust principles, and industrial DMZ (IDMZ) design.
- Strong communication, problem-solving, and stakeholder collaboration skills.
- Bachelor’s degree in a STEM field or equivalent experience.
- Experience implementing Cisco SD-Access (SDA), DNA Center/Catalyst Center, and Cisco ISE.
- Familiarity with microsegmentation, identity-based access policies, or software-defined firewalls.
- Experience with industrial wireless, next-generation firewalls, or high-availability design.
- Familiarity with industrial protocols such as EtherNet/IP or Modbus.
- Active certifications such as CCNP, CCIE, CISSP, or GICSP.
- Deploy, modernize, and manage OT network infrastructure across industrial environments.
- Design secure network architectures using IDMZ, macro-segmentation, and microsegmentation across Purdue Model layers.
- Implement Cisco SD-Access to support fabric automation and identity-based access control.
- Troubleshoot complex network incidents and coordinate upgrades, cutovers, and maintenance activities.
- Partner with IT and plant teams to translate operational needs into secure network solutions.
- Mentor local technical teams on OT networking and security fundamentals.
Approximate focus areas; workload may vary by project and operational needs.
- OT network architecture and infrastructure lifecycle — 25%
- Cisco SD-Access and fabric implementation — 20%
- Network segmentation and OT security — 20%
- Troubleshooting and escalation support — 15%
- Upgrades, cutovers, and maintenance — 10%
- Collaboration and technical mentorship — 10%
As part of our promise to talent, Kelly supports those who work with us through a variety of benefits, perks, and work-related resources. Kelly offers eligible employees voluntary benefit plans including medical, dental, vision, telemedicine, term life, whole life, accident insurance, critical illness, a legal plan, and short-term disability.
As a Kelly employee, you will have access to a retirement savings plan, service bonus and holiday pay plans (earn up to eight paid holidays per benefit year), and a transit spending account. In addition, employees are entitled to earn paid sick leave under the applicable state or local plan.
Click here for more information on benefits and perks that may be available to you as a member of the Kelly Talent Community.
What you didn’t know about us:
- Competitive salary
- Health, Dental and Vision Benefits
- Short/Long Term Disability and Critical Care/Illness Protection
- Life Insurance and Retirement Plans
- Employee Assistance Program
- With this position, you will get the opportunity to work with our game changing clients and further advance your already valuable experience in the telecom industry!
We are Connectors. We thrive on ‘quality over quantity’ and put in the work building strong relationships. We create connections, discover qualities, uncover skills, and place people with accuracy. We are your true partner!
We are Collaborators. You’ll be working with a wholly-owned subsidiary of Kelly and part of the Kelly Telecom division. It allows us to be as nimble and fiercely competitive as a startup while having the backing of a multibillion dollar publicly traded company which has been in business for 75 years. With direct access to hiring managers, services don’t stop at standard recruiting processes. We use our expertise to improve your application skills and provide ongoing career support.
We give 24/7 Support. We are in this together. We provide around the clock availability, competitive employee benefits, and continuously check-in to make sure things are going smoothly. Check out our Glassdoor page!
Kelly Telecom is an equal opportunity employer and will consider all applications without regard to race, genetic information, sex, age, color, religion, national origin, veteran status, disability, or any other characteristic protected by law. For more information click Equal Employment Opportunity is the law.
You should know: Your safety matters! Vaccination against COVID-19 may be a requirement for this job in compliance with current client and governmental policies. A recruiter will confirm and share more details with you during the interview process.