Siemens

Automation, digitalization, and smart infrastructure provider

Networking Subject Matter Expert

Network Engineering & AdministrationConfirmed live in the last 24 hours

Full-timeMumbai, Maharashtra, IndiaNo salary listed

About the Job

Requirements

A BE/B.Tech in Electronics, Electrical, Instrumentation, Computer Science, IT, or equivalent is required.
8–15 years of experience is required.
Expertise in TCP/IP, subnetting, routing, switching, VLAN, STP, RSTP, MRP, OSPF, static routing, network redundancy design, and fiber optic networks.
Experience with BACnet/IP, Modbus TCP/IP, OPC UA, SNMP, and MQTT.
Experience with Cisco switches, Hirschmann industrial switches, Siemens Scalance, Moxa switches, and firewall technologies.
Knowledge of IEC 62443, the NIST framework, ACL management, VPN configuration, and network segmentation.
Experience using Wireshark, SolarWinds, PRTG, Cisco Packet Tracer, Visio, or AutoCAD.
Competency in solution architecture, customer presentations, problem solving, root cause analysis, team leadership, stakeholder management, and tender and compliance review.

Responsibilities

Provide pan-India technical support for design and engineering, commissioning, and troubleshooting.
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.
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.
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.
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.
Act as L4 subject matter expert for project teams.
Review engineering deliverables and mentor engineering and commissioning teams.
Support tendering, solution architecture, customer presentations, and technical clarifications.

Desired Qualifications

Project experience in airports, data centers, metro rail, smart cities, pharmaceutical facilities, commercial high-rise buildings, or critical infrastructure projects.
CCNA or CCNP certification.
Siemens Scalance certification.
Fortinet NSE certification.
Palo Alto certifications.
IEC 62443 cybersecurity training.

"We're improving the way we live and work by intelligently connecting energy systems, buildings, and industries!!

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.

JOIN US! WE MAKE REAL WHAT MATTERS. THIS IS YOUR ROLE"

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

"WE DON'T NEED SUPERHEROES, JUST SUPER MINDS!

WE’VE GOT QUITE A LOT TO OFFER. HOW ABOUT YOU?

We’re Siemens. A collection of over 379,000 minds building the future, one day at a time in over 200 countries. We're dedicated to equality and we welcome applications that reflect the diversity of the communities we work in across Gender, LGBTQ+, Abilities & Ethnicity. All employment decisions at Siemens are based on qualifications, merit and business need. Bring your curiosity and imagination, and help us shape tomorrow.

Find out more about Smart Infrastructure at: https://new.siemens.com/global/en/company/topic-areas/smart-infrastructure.html and about Siemens careers at: www.siemens.com/careers"

About the Company

Siemens

Automation, digitalization, and smart infrastructure provider

Siemens is a global engineering and technology company focused on automation, digitalization, smart infrastructure, and mobility. Its products and solutions span industrial automation systems, electrical equipment, energy management, and digital services that help industries run more efficiently. The company’s core technology comes from its history of electrical generation and distribution, including the dynamo-electric principle, and it now sells hardware, software, and services that connect factories, buildings, grids, and transportation networks. Siemens differentiates itself through scale, a broad portfolio across the value chain, and a long track record of large-scale, multi-country projects in infrastructure and industry. Its goal is to enable smarter, more sustainable industrial processes and urban systems by integrating hardware, software, and digital services to improve productivity, energy efficiency, and mobility.

Company size: 10,001+
Company stage: IPO
Headquarters: Munich, Germany
Founded: 1847

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