Job Title: OT Network Engineer
Function: Network Services / Operational Technology
Location: Pune
Role Purpose
The OT Network Engineer is responsible for operating and supporting OT network
environments across factories and industrial sites. The role ensures stable, secure,
and resilient OT connectivity supporting plant operations, including industrial
switching, OT firewalls, monitoring, incident response, remote access, lifecycle
management, and network changes with minimal production impact.
The engineer works closely with plant OT teams, central IT, security teams, onsite
support, and vendors to deliver OT network services safely and reliably.
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 production-impacting issues.
• Participate in major incidents and maintain accurate ITSM updates.
• Execute planned OT network changes within approved processes and
maintenance windows.
• Support upgrades, recent 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 secur

📌 OT Network Engineer (India)
🏢 Tata Consultancy Services
📍 India