System Architect

L&T Technology Services Ltd.; Bengaluru; On-site; INR 900,000 - 1,500,000; Full time

Job summary

Larsen & Toubro Limited in Bengaluru, India, seeks an experienced telecom engineer to lead integration of LTE/5G, RF systems, and secure IP networks. You will design, test, and implement Layer 2/3 networks, QoS, routing, and security for military-grade environments.

The role requires 7–15 years of relevant experience, a BTech, and strong collaboration with vendors, customers, and certification bodies to ensure interoperability and compliance with MIL-STD standards.

Qualifications

• Integrate telecom systems such as LTE/5G, microwave radios, SATCOM, tactical communication systems, and Network Management Systems (NMS).
• RF analysis and concept
• Design secure IP-based communication networks, including Layer 2/Layer 3 switching, routing, VLANs, QoS, and redundancy.
• Evaluate and integrate COTS equipment, ensuring interoperability across multiple vendors.
• Define IP addressing schemes, routing protocols (OSPF, BGP), multicast, and network security policies.
• Perform system integration with servers, virtualization platforms, storage, firewalls, and cybersecurity solutions.
• Support environmental, EMC/EMI, and military qualification activities (e.g., MIL-STD-810, MIL-STD-461).
• Conduct performance, interoperability, failover, and network resilience testing.

Responsibilities

• Integrate telecom systems such as LTE/5G, microwave radios, SATCOM, tactical communication systems, and Network Management Systems (NMS).
• RF analysis and concept
• Design secure IP-based communication networks, including Layer 2/Layer 3 switching, routing, VLANs, QoS, and redundancy.
• Evaluate and integrate COTS equipment, ensuring interoperability across multiple vendors.
• Define IP addressing schemes, routing protocols (OSPF, BGP), multicast, and network security policies.
• Perform system integration with servers, virtualization platforms, storage, firewalls, and cybersecurity solutions.
• Support environmental, EMC/EMI, and military qualification activities (e.g., MIL-STD-810, MIL-STD-461).
• Conduct performance, interoperability, failover, and network resilience testing.
• Interface with customers, vendors, certification agencies, and user organizations during project execution.

Skills

LTE/5G integration

RF analysis

IP networking

Network design

Security policies

System integration

5G system architecture

Education

Bachelor of Technology (BTech)

Job description

• DEIC-L&T Precision Engineering & Systems IC

Posted On 26 Oct 2026

End Date 24 Apr 2027

Required Experience 7 - 15 years

Skills

Knowledge & Posting Location

SONET/SDH, IP Network, Access & Core Networks Telecommunications Engineering RF Technologies 5G System Architecture

Bachelor of Technology (BTech)

Job Description

• Integrate telecom systems such as LTE/5G, microwave radios, SATCOM, tactical communication systems, and Network Management Systems (NMS).
• RF analysis and concept
• Design secure IP-based communication networks, including Layer 2/Layer 3 switching, routing, VLANs, QoS, and redundancy.
• Evaluate and integrate COTS equipment, ensuring interoperability across multiple vendors.
• Define IP addressing schemes, routing protocols (OSPF, BGP), multicast, and network security policies.
• Perform system integration with servers, virtualization platforms, storage, firewalls, and cybersecurity solutions.
• Support environmental, EMC/EMI, and military qualification activities (e.g., MIL-STD-810, MIL-STD-461).
• Conduct performance, interoperability, failover, and network resilience testing.
• Interface with customers, vendors, certification agencies, and user organizations during project execution.