Sr. Lead Engineering Manager - Telecom

Larsen & Toubro; Riyadh; On-site; SAR 300,000 - 420,000; Full time

Job summary

Larsen & Toubro in Saudi Arabia seeks a Specialist to lead end-to-end Telecommunication design for power transmission, substations, and generation plants. You will drive from concept through FAT, commissioning, and troubleshooting, coordinating with engineering and commissioning teams.

The role requires deep hands-on experience with telecom systems, network architecture, and vendor interfaces (Hitachi, GE, Siemens, Huawei, ZTE).

Qualifications

• Engineering expertise in telecom for power transmission substations and generation plants.
• Experience with design, FAT, commissioning, and field troubleshooting of telecom networks.
• Knowledge of telecom equipment such as multiplexers, Ethernet switches, and protective relays.

Responsibilities

• Engineering & Design: develop telecom network architecture for power systems.
• Selection and interfacing of fiber, switches, and GPS/GNSS elements with protection/control systems.
• Support field teams during testing, commissioning, and FAT activities.
• Ensure low-latency, high-availability networks (PRP/HSR, time sync).
• Coordinate with OEM telecom products and domain specialists (Hitachi, GE, Siemens, Huawei, ZTE).

Education

B.E./ B. Tech in Electronics and Communication

M. Tech – Communication system.

Tools

Wireshark

Packet capture

Network monitoring

Modbus TCP/IP

IEC 61850

IEC 104

GOOSE

IEEE 1588 (PTP)

GPS / GNSS

IRIG-B

Job description

The Person Will Be a Specialist And Provide Technical Leadership For The End-to-end Conceptualization, Design, Selection, Integration, Commissioning, And Troubleshooting Of Telecommunication Networks Enabling Reliable, Secure, And Low-latency Control, Monitoring, Metering, And Data Handling For

• Telecommunication system for Power Transmission system & Substation
• Telecommunication system for Power Generation plants

The candidate shall lead from front to successfully execute the following key tasks from Engineering office and provide support from conceptual stage to Commissioning stage to both Engineering and Commissioning team. The expert candidate shall have overall experience in the field of control system for 15 years and in technical leadership level for 5 more years.

Key Responsibilities

• Engineering & Design

1.1) Development of Engineering

• Telecom for Power Transmission System:
• The candidate shall have in-depth knowledge and hands‑on experience in Engineering & Design of Telecommunication system for Substation and Power Transmission system involving Overhead Transmission lines, UG Cable etc. This involves selection of Fiber characteristics, Multiplexer, interface cards required for interfacing with various external elements like protection relays, Meters, Substation Automation System, Speech communication, and data communication, with the support of protection & Control System personnel
• Telecommunication for Plants:
• The candidate shall have in-depth knowledge and hands‑on experience in Engineering & Design of Telecommunication system for Plants and shall be able to apply the same for Conventional generation / Inverter based generation Plants. This involves selection of Fiber characteristics, Ethernet switches, Time Synchronization, protection relays, Meters, Substation Automation System, Speech communication, data communication with the support of protection & Control System personnel.
• Telecom Network Engineering Requirements
• The candidate shall be able to understand the project specific requirements {as mentioned (a) / (b)} and conceptualize the associated Telecom requirements in-depth to develop the Telecom Network Architecture as required.
• Shall have good knowledge in understanding the OEM telecom Products such as Multiplexers, Ethernet switches, Fire optics cables, Time Synchronization elements like GPS / GNSS etc. and be able to apply the practical limitations critically while developing the Telecom Network Architecture.
• Shall be capable of traffic engineering low latency & low jitter network suitable for PPC/EMS control loops (as required by plant design) to meet the fast setpoint execution, disturbance response, and operational stability.
• Shall be conversant with telecom products from lead OEMs such as Hitachi, GE, Siemens, Huawei, ZTE etc. and shall be able to determine the various equipment ratings based on Telecom Budget calculation.
• The candidate shall have hands‑on experience to define the requirement and develop a detailed Specification for the Telecom system and provide it to engineering.
• Basic understanding of purpose of various equipment connected in Transmission system Substation such as PPC, SCADA, RTU, Protection Relay, SCMS, SAS, PMU and their telecom interface points
• Overall knowledge on various communication protocols such as Modbus TCP/IP, IEC 101, IEC 104, IEC 61850, GOOSE being applied through Telecom system.
• Hands‑on experience in selecting and evaluating GPS / GNSS system meeting IRIG-B, PTP protocol, and shall be familiar with IEEE 1588 (PTP) and IEEE C37.238 standards and provide solution with respect to project specific requirements.
• Good knowledge and experience in Cyber security compliance checks and test acceptance and apply the same suitably for the project’s intended telecom requirements.
• Testing & Commissioning & Technical trouble shooting
• The candidate shall have in-depth knowledge and hands‑on experience in Engineering & Design of Telecommunication systems as well as providing necessary support for Factory Acceptance Test (FAT).
• Shall support commissioning team with necessary guidance and procedures for Field testing such as Cold and HOT commissioning of Telecom system. Some of the key field tests are listed below: o Telecom power autonomy + Blackout recovery
• Fiber link certification (validating loss budget) for all critical paths
• Backbone redundancy failover
• PRP/HSR seamless redundancy test
• PTP/NTP Stability test
• WAN connectivity
• Time Synchronization
• Cyber security
• Modbus TCP/IP and/ or IEC 104 Transmission check

The candidate shall have hands‑on experience with diagnosing the network performance using communication tools:

• wire shark
• Packet capture
• Network Monitoring & diagnostics tools
• Different data formats including data compressions – Comtrade.
• Qualification
• B.E./ B. Tech in Electronics and Communication
• M. Tech – Communication system.