Subject Matter Expert -Networking (IBMS)

Location(s)

- Thane - Maharashtra - India

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Smart infrastructure from Siemens makes the world a more connected and caring place – where resources are valued, where impact on the world is considered, where sustainable energy is delivered optimally and efficiently. It provides the flexible infrastructure to allow society to evolve and respond to changing conditions. Technology and the ingenuity of people come together to be at one with our environments and to care for our world. We do this from the macro to the micro level, from physical products, components, and systems to connected, cloud-based digital offerings and services. Siemens offers a broad portfolio of grid control and automation; low- and medium-voltage power distribution, switching and control; and building automation, fire safety and security, HVAC control and energy solutions.
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Position: Networking SME - IBMS Solutions Experience: 8-15 Years Location: Mumbai, India (Travel to project sites as required)
Role Purpose:
The Networking SME will be responsible for designing, reviewing, supporting, commissioning, and troubleshooting enterprise-grade network infrastructure for Integrated Building Management Systems (IBMS), Data Centers, Airports, Metro Rail, Smart Buildings, and Critical Infrastructure projects. The role requires expertise in OT/IT convergence, industrial networking, cybersecurity, and multi-system integration.
Key Responsibilities:
Pan India Technical Support for Design & Engineering, Commissioning & Trouble shooting • Develop network architecture for IBMS, BMS, FAS, CCTV, ACS, PA, SCADA, EMS, CPMS, and Data Center solutions. • Prepare network topology, IP addressing plans, VLAN architecture, redundancy philosophy, and cybersecurity design. • Design Layer-2 and Layer-3 networks for critical infrastructure applications. • Perform bandwidth calculations and network sizing.
System Integration • Integrate BACnet/IP, Modbus TCP/IP, SNMP, OPC UA, MQTT, and other OT protocols. • Support third-party system integration through Ethernet networks. • Define communication architecture between field controllers, servers, workstations, and cloud platforms.
Commissioning & Troubleshooting • Support commissioning of network switches, routers, firewalls, and managed industrial networks. • Resolve communication issues related to online/offline controllers, servers, gateways, and field devices. • Conduct FAT, SAT, performance testing, and redundancy validation. • Analyze network traffic using Wireshark and diagnostic tools.
Cybersecurity • Implement IEC 62443/NIST-based cybersecurity practices. • Configure VLAN segregation, ACLs, firewall rules, VPN access, and secure remote connectivity. • Conduct network security assessments and vulnerability reviews.
Technical Leadership • Act as L4 SME for project teams. • Review engineering deliverables and mentor engineering/commissioning teams. • Support tendering, solution architecture, customer presentations, and technical clarifications.
Required Technical Skills
Networking • TCP/IP, Subnetting, Routing, Switching • VLAN, STP, RSTP, MRP • OSPF, Static Routing • Network Redundancy Design • Fiber Optic Networks
Industrial Protocols • BACnet/IP • Modbus TCP/IP • OPC UA • SNMP • MQTT
Infrastructure • Cisco Switches • Hirschmann Industrial Switches • Siemens Scalance • Moxa Switches • Firewall Technologies
Cybersecurity • IEC 62443 • NIST Framework • ACL Management • VPN Configuration • Network Segmentation
Tools • Wireshark • SolarWinds • PRTG • Cisco Packet Tracer • Visio / AutoCAD
Desired Project Experience • Airports • Data Centers • Metro Rail • Smart Cities • Pharmaceutical Facilities • Commercial High-Rise Buildings • Critical Infrastructure Projects
Educational Qualification • BE/B.Tech in Electronics, Electrical, Instrumentation, Computer Science, IT, or equivalent.
Key Competencies • Solution Architecture • Customer Presentation Skills • Problem Solving • Root Cause Analysis • Team Leadership • Stakeholder Management • Tender & Compliance Review
Preferred Certifications • CCNA / CCNP • Siemens Scalance Certification • Fortinet NSE • Palo Alto Certifications • IEC 62443 Cybersecurity Training
KPI • First-Time Right Engineering • Reduction in Commissioning TAT • Successful FAT/SAT Closure • Network Uptime >99.9% • Zero Critical Cybersecurity Non-Conformities • L4 Technical Support Effectiveness

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