Engineering Manager -IP-MPLS Data Networking system
Larsen & Toubro
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Job summary
Larsen & Toubro in Faridabad (Delhi NCR) seeks a Lead Designer for IP/MPLS Routing & Data Networking to design end-to-end networks for railway and critical infrastructure projects, including SCADA, CCTV, PA/PIDS, and signaling backbones.
You will develop network architectures, routing designs, QoS, security zoning, and documentation (NDD/DDD/ICD), and support FAT/SAT and field commissioning while ensuring cyber security compliance per IEC 62443/ISO 27001.
Qualifications
- Bachelor's Degree in Telecommunications Engineering, Electronics & Communications Engineering, or CS/IT.
- 10–15 years of IP/MPLS and data networking design experience.
- Railway/metro/critical infrastructure projects experience preferred.
- Vendor exposure with Cisco, Nokia, Juniper, Huawei, or Alcatel-Lucent.
Responsibilities
- Design end-to-end IP/MPLS networks for railway and infrastructure projects.
- Create Layer 2/3 topologies including core, distribution, access, and data center links.
- Prepare routing and switching designs and ensure high availability with redundancy.
- Develop QoS, traffic engineering, security zoning, and network documentation (NDD/DDD/ICD).
- Support FAT/SAT, testing, and field deployment; collaborate with signallers, telecoms, and system integrators.
Skills
Education
Tools
Job description
Engineering - Telecommunications (S&T) / Telecom Design
Engineering Manager / Lead Telecom Architect
The IP/MPLS Routing & Data Networking Designer is responsible for the design, engineering, configuration strategy, and implementation support of IP/MPLS-based communication networks for railway, transportation, metro, Semi high speed and High-speed rail Projects and critical infrastructure projects that involves supporting the FRMC S5G Radio System backbone. The role involves developing network architectures, routing designs, redundancy schemes, cybersecurity-compliant solutions, and technical documentation to ensure high availability, scalability, and reliability of operational and enterprise communication systems.
- Develop end-to-end IP/MPLS network architectures for railway and infrastructure projects.
- Design Layer 2 and Layer 3 network topologies including:
- Core networks
- Distribution networks
- Access networks
- Data center connectivity
- Prepare routing and switching designs using industry best practices.
- Design high-availability and resilient network solutions with redundancy mechanisms.
- Design and document:
- MPLS
- MPLS-TP
- Segment Routing (SR-MPLS) (where applicable)
- VPN services (L2VPN/L3VPN)
- Configure and validate routing protocols:
- OSPF
- IS-IS
- BGP
- Static Routing
- Develop QoS strategies for mission-critical applications.
- Define traffic engineering and bandwidth management requirements.
- Design Ethernet-based communication systems.
- Define VLAN, VRF, subnetting, and IP addressing plans.
- Develop network segmentation and security zoning.
- Ensure integration of telecom subsystems such as:
- SCADA
- CCTV
- PA/PIDS
- AFC
- Signalling systems
- Data centres
- Prepare:
- Network Design Documents (NDD)
- Detailed Design Documents (DDD)
- Interface Control Documents (ICD)
- Method Statements
- Configuration Guidelines
- FAT/SAT Procedures
- Develop network schematics, routing diagrams, and rack layouts.
- Support Factory Acceptance Tests (FAT).
- Support Site Acceptance Tests (SAT).
- Review routing tables, failover testing, and performance results.
- Participate in troubleshooting and root-cause analysis activities.
- Implement network security best practices.
- Support compliance with:
- IEC 62443
- ISO 27001
- NIST Cybersecurity Framework
- Design secure remote access and network access controls.
- Collaborate with:
- Signalling teams
- Telecom teams
- System integrators
- Customers and consultants
- Review vendor proposals, technical submittals, and design deliverables.
- Bachelor's Degree in:
- Telecommunications Engineering
- Electronics & Communication Engineering
- Computer Science /Information Technology
- 10–15 years of experience in IP/MPLS and data networking design.
- Experience in railway, metro, transportation, utility, or critical infrastructure projects preferred.
- Experience with major vendors such as:
- Cisco
- Nokia
- Juniper
- Huawei
- Alcatel-Lucent
- IP/MPLS Network Design
- OSPF
- IS-IS
- BGP
- MPLS L2VPN/L3VPN
- Ethernet Networking
- VLAN and VRF Design
- QoS Design
- TCP/IP Protocol Suite
- Network Redundancy and High Availability
- Segment Routing (SR-MPLS)
- MPLS-TP
- SDN Solutions
- IPv6
- Network Management Systems (NMS)
- Cybersecurity for Critical Infrastructure
- Data Center Networking
- CCNP Enterprise
- CCIE Enterprise Infrastructure
- Nokia NRS I / NRS II
- JNCIP-SP / JNCIE-SP
- ITIL Foundation
- IEC 62443 Cybersecurity Certification
- Network Architecture Design
- Analytical Problem Solving
- Technical Documentation
- Design Review & Verification
- Stakeholder Management
- Communication Skills
- Team Collaboration
- Project Delivery Focus
- High-Level Design (HLD)
- Low-Level Design (LLD)
- IP Addressing Plan
- Routing Design Documents
- MPLS Design Documents
- Network Topology Diagrams
- Redundancy and Failover Strategy
- FAT/SAT Reports
- As-Built Documentation
Faridabad – Delhi NCR
Full-Time
Designer / Senior Designer / Lead Designer (depending on experience)
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