About the Role

We are seeking a motivated and detail-oriented OT Network Specialist to support and maintain Operational Technology (OT) network environments across industrial and critical infrastructure systems. The ideal candidate will have hands-on experience with industrial networking technologies, network troubleshooting, cybersecurity best practices, and OT environments such as manufacturing, utilities, energy, or industrial automation.

This role offers an opportunity to work with cross-functional teams to ensure the reliability, security, and performance of industrial network infrastructure while supporting digital transformation initiatives. Key Responsibilities

? Support and maintain OT network infrastructure.

? Troubleshoot network connectivity and performance issues.

? Configure and manage switches, routers, firewalls, and VPNs.

? Support ICS/SCADA network environments.

?️ Assist with OT cybersecurity and network segmentation initiatives.

? Maintain network documentation and asset inventories.

? Collaborate with engineering and operations teams to resolve network-related issues.

Required

Qualifications

? Bachelor's degree or Diploma in Industrial Automation, Network Engineering, Electrical Engineering, or a related field.

? 2–3 years of experience supporting OT, industrial, or enterprise network environments.

⚙️ Hands-on experience with network technologies including TCP/IP, VLANs, routing, switching, VPNs, and firewalls.

? Understanding of industrial protocols such as Modbus TCP, EtherNet/IP, DNP3, Profinet, OPC UA, or similar.

? Experience with Cisco, Fortinet, Palo Alto,



or similar networking technologies.

? Knowledge of network monitoring and troubleshooting tools.

? Familiarity with industrial control systems, SCADA environments, and OT architectures.

? Strong analytical, troubleshooting, and problem-solving skills.

?️ Excellent English verbal and written communication skills.

Preferred

Qualifications

? Experience working in manufacturing, utilities, energy, oil & gas, mining, or critical infrastructure environments.

? Knowledge of OT cybersecurity frameworks and standards such as IEC 62443, NIST CSF, or NERC CIP.

? Industry certifications such as CCNA, Network+, Fortinet NSE, Cisco CyberOps, or equivalent.

?️ Experience with network access control (NAC), SIEM solutions, or industrial cybersecurity tools.

☁️ Familiarity with cloud connectivity and remote access solutions for industrial environments.

Technical

Skills

✅ Industrial Networking

✅ TCP/IP, Routing & Switching

✅ Cisco & Fortinet Technologies

✅ Industrial Protocols (Modbus, OPC UA, EtherNet/IP, Profinet)

✅ Firewalls & VPN Technologies

✅ Network Monitoring & Diagnostics

✅ OT Cybersecurity Fundamentals

✅ SCADA & Industrial Control Systems

✅ Network Documentation & Asset Management What We Offer

? Competitive salary and benefits package

? Fully remote work opportunity within Canada

? Professional development and certification support

? Exposure to cutting-edge OT and cybersecurity technologies

? Team-oriented and innovative work workplace

? Career growth opportunities within a rapidly growing technology team

📌 1. OT Network Specialist (Richmond Hill)
🏢 Arista Cyber
📍 Richmond Hill