Main Purpose
An OT (Operational Technology) Network Architect is responsible for designing, maintaining and troubleshooting industrial network environments. Their focus is on networks that control physical processes, such as those found in manufacturing, energy, and critical infrastructure.
Key Responsibilities:
Network Design & Implementation
Designing and deploying OT networks that integrate with IT environments while ensuring minimal downtime. Configuring switches, routers, Fortigate firewalls, and supporting industrial protocols (e.g., Modbus, PROFINET, DNP3). Implementing segmentation strategies like vdom & vlan segregation for non-chemicals and full segregation for our chemical plants.
Security & Compliance
Enforcing cybersecurity best practices to protect against threats like ransomware and unauthorized access.
Applying security policies in line with frameworks like NIST, IEC 62443, or NERC CIP.
Monitoring network activity for anomalies and vulnerabilities.
Support OT security incident response activities
Monitoring & Troubleshooting
Using tools such as Solar Winds, Splunk,



or SCADA systems to monitor network health.
Diagnosing and resolving connectivity issues, latency problems, and device failures.
Performing root cause analysis and documenting resolutions.
Remote Support & Maintenance
Leverage remote access solutions (Netskope, VPNs, jump hosts, or bastion servers) for secure remote troubleshooting. Updating firmware, patches, and configurations without disrupting operations. Supporting industrial devices like PLCs, RTUs, and HMIs.
Collaboration & Documentation
Working with plant engineers, IT teams, and security teams to align network strategies.
Documenting network diagrams, change logs, and security policies.
Conducting training sessions to educate on best practices for network security and troubleshooting.
Innovation
Stay abreast of industry trends and emerging technologies in OT security to drive innovation and continuous improvement.
Cross-Functional

📌 Ot network architect (Pune)
🏢 Orbia Pune
📍 Pune