Job ID - 36501

Function - DIO

Job location - Gurgaon/Bangalore

Job Type - Permanent

Why we need this role

We are seeking a Senior IT Infrastructure Engineer (Network) to act as a technical Subject Matter Expert (SME) across enterprise network services, supporting office, data centre, and hybrid cloud networking environments.

This is a hands-on engineering role focused on delivering resilient, secure-by-design, and high-performance network platforms using predominantly Cisco technologies, with exposure to Juniper and cloud-native networking. The role will be critical in ensuring network segmentation, security, and scalability across the organisation’s global infrastructure

What you will do

Act as a technical SME for network infrastructure, including:

Office / campus networks, Data centre networking, Hybrid cloud connectivity (Azure, GCP)

Design, implement, and support secure, scalable network solutions across:

LAN / WAN / Data Centre / Cloud

Own and optimise Cisco-based network platforms, including:

Routing and switching,



Cisco ACI (Application Centric Infrastructure), Policy-driven segmentation

Support and manage F5 load balancing platforms, including:

LTM configuration and optimisation, Traffic management and application delivery, High availability and failover design

Deliver secure-by-design network architecture, including:

Network segmentation and micro-segmentation, Zero Trust principles, Alignment to enterprise security controls

Design and support hybrid networking solutions, including:

Connectivity to Azure and GCP

VPN and private connectivity models (e.g. ExpressRoute, Interconnect)

Troubleshoot and resolve complex network incidents and performance issues across multi-layer environments

Drive network automation and standardisation to improve operational efficiency

Produce and maintain high-quality network documentation, including:

High-level and low-level designs, Network diagrams, Runbooks and operational procedures, Configuration sta

📌 Senior IT Infrastructure Engineer (Bengaluru)
🏢 Colt Technology Services
📍 Bengaluru