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Engineering Manager -Telecom Maintenance & Management System

Date Posted: Aug 04, 2026

Job Detail

  • location_on
    Location Faridabad, Haryana, India
  • desktop_windows
    Job Type: Full Time/Permanent
  • schedule
    Shift:
  • analytics
    Career Level:
  • group
    Positions:
  • calendar_view_day
    Experience:
  • male
    Gender: No Preference
  • school
    Degree:
  • calendar_month
    Apply Before: Nov 15, 2026

Job Description

The TMMS & VoIP System Designer is responsible for the design, engineering, integration, testing, and maintenance support of Telecommunications Maintenance Management Systems (TMMS) and Voice over Internet Protocol (VoIP) systems for railway, metro, airport, and infrastructure projects. The role ensures reliable communication, centralized monitoring, fault management, and maintenance of telecom systems in compliance with project specifications and industry standards. Suitable for Railway, Metro, Airport, Data Centre, and Critical Infrastructure Telecommunication Projects.

Key Responsibilities -TMMS Design & Engineering

  • Develop Telecom Maintenance Management System architecture and design.
  • Define monitoring and control requirements for telecom subsystems.
  • Design interfaces between TMMS and telecom systems, including: 
    • CCTV
    • PA/PIDS
    • Telephone Systems
    • Radio Systems
    • Transmission Networks
    • Access Control Systems
    • Network Equipment
    • UPS Systems
  • Develop alarm management and event logging functionalities.
  • Configure SNMP-based network monitoring and management solutions.
  • Prepare telecom asset management databases and maintenance workflows.

VoIP System Design

  • Design IP-based telephony architecture and network topology.
  • Define SIP-based communication requirements.
  • Configure and integrate: 
    • IP-PBX Systems
    • SIP Servers
    • Media Gateways
    • VoIP Phones
    • Softphones
    • Voice Recording Systems
  • Develop dial plans, numbering schemes, and call routing strategies.
  • Ensure interoperability with legacy telephone systems and emergency communication systems.

Integration & Interface Management

  • Coordinate with signalling, SCADA, AFC, ICT, and telecom teams.
  • Define interface requirements between TMMS, VoIP, and other railway systems.
  • Support integration activities during system implementation and commissioning.
  • Resolve communication and network interoperability issues.

Testing & Commissioning

  • Prepare Factory Acceptance Test (FAT) procedures.
  • Support Site Acceptance Testing (SAT).
  • Conduct functionality, performance, and redundancy testing.
  • Verify alarm reporting, fault management, and call quality requirements.
  • Support troubleshooting during commissioning and operations.

Documentation

Prepare and maintain:

  • System Design Documents (SDD)
  • Telecom Architecture Drawings
  • Interface Control Documents (ICD)
  • Network Diagrams
  • Bill of Materials (BOM)
  • Configuration Documents
  • Testing Procedures and Reports
  • Operation & Maintenance Manuals

Compliance & Quality

  • Ensure compliance with project specifications and telecom standards.
  • Follow cybersecurity requirements for telecom and IP-based systems.
  • Support RAMS activities and system reliability assessments.
  • Participate in design reviews and audits.

Educational Qualification

Essential

  • Bachelor's Degree in: 
    • Electronics & Communication Engineering
    • Telecommunications Engineering

Preferred

  • Master's Degree in Telecommunications, Networking, or Systems Engineering.

Experience

Designer / Engineer

  • 8-15 years of experience in telecom system design and integration.
  • Experience in railway, metro, airport, smart city, or infrastructure projects preferred.

Senior Designer / Lead Engineer

  • 8+ years of experience in telecom systems engineering.
  • Experience in managing telecom design and integration activities.

Technical Skills

TMMS

  • Telecom Maintenance Management Systems
  • Network Management Systems (NMS)
  • Fault Management Systems (FMS)
  • SNMP Monitoring and Configuration
  • Alarm and Event Management
  • Asset Management Systems

VoIP

  • IP Telephony Architecture
  • SIP Protocol
  • RTP/RTCP
  • VoIP Network Design
  • IP-PBX Systems
  • Session Border Controllers (SBC)
  • Voice Recording Systems
  • Emergency Telephone Systems

Networking

  • TCP/IP
  • VLAN
  • VPN
  • Ethernet Switching
  • Routing Protocols
  • Cybersecurity Fundamentals
  • Network Redundancy Design

Knowledge of Standards

  • ITU-T Recommendations
  • IEEE 802.3 Ethernet Standards
  • SIP (RFC 3261)
  • IEC 62443 Cybersecurity Standards
  • ISO 27001 Information Security
  • EN 50121 (EMC for Railways)
  • EN 50126 (RAMS)
  • IEC 61375 (where railway network integration is required)

Preferred Tools

  • Cisco Unified Communications Manager (CUCM)
  • AVAYA IP Office
  • Unify/OpenScape
  • 3CX
  • Asterisk
  • Wireshark
  • SolarWinds NMS
  • PRTG Network Monitor
  • ManageEngine OpManager
  • AutoCAD
  • Visio
  • DOORS / Polarion

Key Competencies

  • Telecom System Engineering
  • VoIP Network Design
  • Troubleshooting and Problem Solving
  • Technical Documentation
  • Stakeholder Management
  • Interface Coordination
  • Communication Skills
  • Quality and Compliance Focus

Typical Deliverables

  • TMMS Architecture and Configuration Documents
  • VoIP System Design Documents
  • Interface Control Documents (ICD)
  • Network Architecture Drawings
  • IP Addressing Plans
  • Device Configuration Sheets
  • Alarm & Event Mapping Matrix
  • FAT/SAT Procedures and Reports
  • O&M Manuals
  • As-Built Documentation

Job details

  • Business: Transportation Infrastructure IC
  • Location: Faridabad, Haryana
  • Experience: 8-15 years
  • CTC range: ₹10,00,000 – ₹15,00,000 a year
  • Skills: Commercial Design, Document Creation

Source: Larsen & Toubro careers — Read the original posting and apply

This role is listed by the employer on its own careers site. Kaam Ki Khoj does not process applications for it.

Company Overview

Larsen & Toubro
Larsen & Toubro · Mumbai, Maharashtra, India
799 open roles

Larsen & Toubro is an employer in the Construction/Engineering sector with operations in India. This is a directory listing maintained by Kaam Ki Khoj so that candidates can find the organisation; it is not an official company page and Kaam Ki Kh... Read More

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