Larsen & Toubro Ltd

Engineering Manager -IP-MPLS Data Networking system

Larsen & Toubro Ltd
Faridabad
Not disclosed
Work from OfficeWork from Office
Full TimeFull Time
Min. 10 yearsMin. 10 years

Job Description

Engineering Manager -IP-MPLS Data Networking system

Lead Designer - IP/MPLS Routing & Data Networking (BTN, GE, SDH/PDH/FOTS)

Department

Engineering - Telecommunications (S&T) / Telecom Design

Reporting To

Engineering Manager / Lead Telecom Architect

Job Summary

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.

Key Responsibilities

Network Design & Engineering

  • 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.

IP/MPLS & Routing Design

  • 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.

Data Networking

  • 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

Technical Documentation

  • 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.

Testing & Commissioning Support

  • 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.

Cybersecurity & Compliance

  • Implement network security best practices.
  • Support compliance with: 
    • IEC 62443
    • ISO 27001
    • NIST Cybersecurity Framework
  • Design secure remote access and network access controls.

Stakeholder Coordination

  • Collaborate with: 
    • Signalling teams
    • Telecom teams
    • System integrators
    • Customers and consultants
  • Review vendor proposals, technical submittals, and design deliverables.

Required Qualifications

  • Bachelor's Degree in: 
    • Telecommunications Engineering
    • Electronics & Communication Engineering
    • Computer Science /Information Technology

Experience

  • 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

Technical Skills

Mandatory

  • 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

Preferred

  • Segment Routing (SR-MPLS)
  • MPLS-TP
  • SDN Solutions
  • IPv6
  • Network Management Systems (NMS)
  • Cybersecurity for Critical Infrastructure
  • Data Center Networking

Certifications (Preferred)

  • CCNP Enterprise
  • CCIE Enterprise Infrastructure
  • Nokia NRS I / NRS II
  • JNCIP-SP / JNCIE-SP
  • ITIL Foundation
  • IEC 62443 Cybersecurity Certification

Key Competencies

  • Network Architecture Design
  • Analytical Problem Solving
  • Technical Documentation
  • Design Review & Verification
  • Stakeholder Management
  • Communication Skills
  • Team Collaboration
  • Project Delivery Focus

Deliverables

  • 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

Location: Faridabad – Delhi NCR
Employment Type: Full-Time
Level: Designer / Senior Designer / Lead Designer (depending on experience)

Job role

Work location
Work locationFaridabad
Department
DepartmentEngineering - Hardware & Networks
Role / Category
Role / CategoryHardware
Employment type
Employment typeFull Time
Shift
ShiftDay Shift

Job requirements

Experience
ExperienceMin. 10 years

About company

Name
NameLarsen & Toubro Ltd
Job posted by Larsen & Toubro Ltd

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