Networks-OT_L2

Role - Networks-OT_L2

Years of Experience - 8 to 10 years

Location - Pune

• Key Responsibilities
• Operate and support OT LAN and connectivity services across manufacturing sites.
• Ensure network health, availability, and performance aligned with plant constraints and SLAs.
• Support centralized remote operations for OT environments.
• Manage industrial switching environments and plant connectivity.
• Configure, troubleshoot, and optimize switches, VLANs, segmentation, and redundancy.
• Support industrial protocols such as PROFINET, Modbus, and EtherNet/IP.
• Support OT firewalls (e.g., mGuard or equivalent).
• Implement firewall rules, segmentation, NAT, and secure communication paths.
• Align OT network changes with cybersecurity and plant security requirements.
• Coordinate with security teams on hardening, patching, vulnerabilities, and secure remote access.
• Monitor OT networks using approved tools.
• Troubleshoot and resolve incidents, especially productionimpacting issues.
• Participate in major incidents and maintain accurate ITSM updates.
• Execute planned OT network changes within approved processes and maintenance windows.
• Support upgrades, new site rollouts, and design changes.
• Maintain configurations, backups, baselines, and rollback plans.
• Support secure OT remote access for internal teams and approved vendors.
• Ensure access follows defined approvals, monitoring, and security controls.
• Manage OT IP addressing, subnet planning, and documentation.
• Support firmware upgrades, patching, and lifecycle management of OT devices.
• Track EOL/EOS risks and coordinate upgrades during plant shutdown windows.
• Coordinate with onsite teams, OEMs, and vendors for breakfix, RMA, and escalations.
• Maintain OT network documentation, diagrams, inventories, and runbooks.
• Contribute to RCA and continuous improvement of OT network operations.
• Technical Skills:
• Strong experience in OT / industrial network operations
• Handson experience with industrial Ethernet switching
• Experience with OT firewalls (mGuard preferred)
• Knowledge of network segmentation, IT/OT separation, and OT security zones
• Solid understanding of TCP/IP, VLANs, routing, redundancy, NAT, ACLs, and firewalls
• Experience with monitoring tools, incident/change management, and lifecycle activities
• Knowledge of Purdue model and OT cybersecurity is desirable