Senior IT Infrastructure Engineer (network)

Job ID - 36501

Function - DIO

Job location - Gurgaon/Bangalore

Job Type - Permanent

Why we need this role

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 standards 

Collaborate with: 

Security teams (segmentation, network security controls) 

Cloud engineering teams 

Platform and infrastructure teams 

Participate in the on-call rota to support critical network incidents 

What we're looking for

Required Skills & Experience 

Strong hands-on experience with: 

Cisco networking technologies (core requirement) 

Data centre networking and Cisco ACI 

F5 load balancing platforms 

Experience with: 

Juniper networking technologies (desirable) 

Hybrid cloud networking (Azure and/or GCP) 

Deep knowledge of: 

Network segmentation and secure network design 

Routing and switching protocols (e.g. BGP, OSPF) 

Layer 4–7 load balancing concepts 

High availability and resilient design 

Proven ability to design, implement, and support enterprise-scale network environments 

Strong troubleshooting experience across: 

LAN 

WAN 

Data centre fabric 

Hybrid cloud connectivity 

Shape 

✅ Technical Competencies 

Recognised as a network SME within the team 

Ability to lead complex technical delivery and problem resolution independently 

Strong understanding of: 

Secure-by-design networking 

Network segmentation strategies (macro and micro segmentation) 

High availability, resilience, and fault tolerance 

Hands-on experience implementing and operating Cisco ACI environments 

Ability to contribute to design decisions in partnership with architecture teams 

✅ Behavioural & Professional Skills 

Ownership & Accountability: Takes responsibility for network stability, performance, and security 

Technical Leadership: Influences engineering standards and solutions without direct line management 

Security Focus: Embeds secure-by-design principles into all network solutions 

Collaboration: Works effectively across infrastructure, security, and cloud teams 

Communication: Clearly articulates technical concepts and designs 

Continuous Improvement: Drives optimisation, automation, and simplification initiatives 

✅ Preferred Qualifications 

Certifications such as: 

Cisco (CCNP / CCIE) 

F5 certifications 

Cloud networking certifications (Azure / GCP) 

Exposure to: 

Network automation tools (Ansible, Terraform, etc.) 

Container networking and modern application delivery