Job DescriptionJob Title: OT Network Engineer NFunction: Network Services / Operational Technology NLocation: Pune NRole PurposenThe OT Network Engineer is responsible for operating and supporting OT network Nenvironments across factories and industrial sites. The role ensures secure, secure, Nand resilient OT connectivity supporting plant operations, including industrial Nswitching, OT firewalls, monitoring, incident response, remote access, lifecycle Nmanagement, and network changes with minimal production impact. NThe engineer works closely with plant OT teams, central IT, security teams, onsite Nsupport, and vendors to deliver OT network services safely and reliably. NKey Responsibilitiesn N Operate and support OT LAN and connectivity services across manufacturing Nnsites.nnEnsure network health, availability, and performance aligned with plant Nnconstraints and SLAs. Nn Support centralized remote operations for OT environments. N Manage industrial switching environments and plant connectivity. N Configure, troubleshoot, and optimize switches, VLANs, segmentation, and Nnredundancy.n N Support industrial protocols such as PROFINET, Modbus, and EtherNet/IP. N Support OT firewalls (e.G., mGuard or equivalent). N Implement firewall rules, segmentation, NAT, and secure communication paths. N Align OT network changes with cybersecurity and plant security requirements. N Coordinate with security teams on hardening, patching, vulnerabilities, and Nnsecure remote access. Nn Monitor OT networks using approved tools. N Troubleshoot and resolve incidents, especially production-impacting issues. N Participate in major incidents and maintain accurate ITSM updates. N Execute planned OT networkchanges within approved processes and Nnmaintenance windows. NnSupport upgrades,new site rollouts, and design changes.



N Maintain configurations, backups, baselines, and rollback plans. N Support secure OT remote access for internal teams and approved vendors. N Ensure access follows defined approvals, monitoring, and security controls. N Manage OT IP addressing, subnet planning, and documentation. N Support firmware upgrades,patching, and lifecycle management of OT devices. N Track EOL/EOS risks andcoordinate upgrades during plant shutdown windows. N Coordinate with onsite teams, OEMs, and vendors for break-fix, RMA, and Nnescalations.n N Maintain OT network documentation, diagrams, inventories, and runbooks. N Contribute to RCA and continuous improvement of OT network operations. NnRequired Skills & Experience NTechnical Skillsn N Strong experience in OT/ industrial network operations N Hands-on experience with industrial Ethernet switching N Experience with OT firewalls (mGuard preferred) N Knowledge of network segmentation, IT/OT separation, and OT security zones N Solid understanding of TCP/IP, VLANs, routing, redundancy, NAT, ACLs, and Nnfirewallsn N Experiencewith monitoring tools, incident/change management, and lifecycle Nnactivitiesn N Knowledgeof Purdue model and OT cybersecurity is desirable NnExperiencen N 5+ years in network operations, with 23 years in OT / industrial environments N Experience supporting manufacturing plants or industrial sites N Experience in high-availability, safety-critical environments NnSoft Skillsn N Strong troubleshooting and analytical skills N Calm under production-impacting situations N Good communication and coordination skills N Strong documentation and change discipline N Willingness to work in 24x7 or on-call support models if required NnPreferredn N Experiencein global manufacturing environments N Exposure to OT cybersecurity, IT/OT convergence, or factory modernization N

📌 Ot Network Engineer (Pune)
🏢 TCS
📍 Pune