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 reliable, 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, 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 define

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