Tcs hiring Network Domain Architect For Chennai

Tata Consultancy Services; Chennai District; On-site; INR 3,500,000 - 6,000,000; Full time

Job summary

Tata Consultancy Services in Chennai seeks a seasoned Network Domain Architect to define and govern enterprise network architecture spanning on-premises, data centers, and cloud.

You will lead architecture design, governance, and migrations, ensuring security, performance, and scalability across global networks, with a focus on SD-WAN, Zero Trust, and hybrid connectivity.

Qualifications

• 10–15 years of experience in enterprise networking.
• Proven expertise in network architecture design and transformation.
• Experience in large-scale, global environments.

Responsibilities

• Define and maintain enterprise network architecture roadmap.
• Design end-to-end architectures across LAN/WAN/WLAN, data centers, and cloud.
• Develop HLD/LLD documentation and design standards.
• Ensure scalability, resilience, and high availability.
• Architect solutions using routing, switching, load balancers, DNS/DHCP, VPNs.
• Oversee deployment and lifecycle of network infrastructure.
• Design and enforce secure network architecture incl. firewalls, NAC, VPN, zero trust.
• Design and integrate network solutions across Azure/AWS and hybrid connectivity.
• Lead migrations and modernization initiatives to cloud-enabled networks.
• Define performance benchmarks and SLAs; capacity planning and optimization.
• Drive automation using Python/Ansible; explore SD-WAN/SASE and observability tools.
• Governance: enforce standards, policies; lead architecture reviews; trusted advisor to stakeholders.

Skills

Enterprise networking

Routing protocols

Network security

Cisco

Aruba

Juniper

Azure AWS

SD-WAN/SASE

Tools

Cisco

Aruba

Juniper

Job description

Job Description Network Domain Architect

Role Overview

We are seeking an experienced Network Domain Architect responsible for defining, designing, and governing enterprise network architecture across on-premises, data center, and cloud environments. The role focuses on building secure, scalable, and high-performance networking solutions aligned with business and IT strategy.

This is a senior technical leadership role involving architecture design, transformation initiatives, and governance across global network landscapes.

Key Responsibilities

1. Network Architecture & Strategy

• Define and maintain enterprise network architecture roadmap aligned with business needs
• Design end-to-end architectures across:
• LAN / WAN / WLAN
• Data Centre Networks
• Cloud & Hybrid Connectivity
• Develop HLD / LLD documentation and design standards
• Ensure scalability, resilience, and high availability

2. Core Networking & Infrastructure

• Architect solutions using technologies such as:
• Routing & Switching (BGP, OSPF, MPLS, VRF)
• Load balancers, DNS, DHCP
• VPNs and network segmentation
• Oversee deployment and lifecycle of network infrastructure (routers, switches, firewalls)

3. Network Security Architecture

• Design and enforce secure network architecture including:
• Firewalls, IDS/IPS, NAC
• VPN and Zero Trust network principles
• Collaborate with security teams to ensure compliance with enterprise standards
• Define network segmentation and access control

4. Cloud & Hybrid Networking

• Design and integrate network solutions across:
• Azure / AWS cloud environments
• Hybrid connectivity (ExpressRoute, VPN Gateway, SD-WAN)
• Lead migration and modernization initiatives (legacy to cloud-enabled networks

5. Performance & Capacity Planning

• Define network performance benchmarks and SLAs
• Conduct capacity planning and optimization across network landscapes
• Monitor network health and recommend improvements

6. Automation & Innovation

• Drive automation using Python, Ansible, or similar tools
• Evaluate and implement modern technologies such as:
• SD-WAN / SASE
• Network automation & observability tools
• Continuously improve operational efficiency

7. Governance & Stakeholder Management

• Define and enforce network standards, policies, and best practices
• Lead architecture review boards and design governance
• Act as a trusted advisor to stakeholders and business teams
• Collaborate with vendors and service providers

8. Leadership & Delivery

• Provide technical leadership to network engineers and delivery teams
• Support large-scale deployments, migrations, and transformations
• Mentor team members and drive knowledge sharing

Required Skills & Experience

Technical Skills

• Strong expertise in:
• Enterprise networking (LAN, WAN, WLAN, Data Centre)
• Routing protocols (BGP, OSPF, MPLS)
• Network security (Firewalls, VPN, Zero Trust)
• Hands-on experience with:
• Cisco, Aruba, Juniper, or similar OEM technologies
• Cloud networking (Azure / AWS)
• Strong understanding of:
• SD-WAN, SASE, and modern network

Experience

• 10–15 years of experience in enterprise networking
• Proven expertise in network architecture design and transformation
• Experience working in large-scale, global environments

Certifications (Preferred)

• CCNP / CCIE
• AWS Advanced Networking / Azure Networking
• Security certifications (e.g., CISSP – optional)

Soft Skills

• Strong stakeholder and communication skills
• Leadership and mentoring capabilities
• Analytical thinking and problem-solving

Nice to Have

• Experience in retail or distributed enterprise environments (stores, warehouses)
• Exposure to network automation and DevNet practices
• Experience in multi‑vendor environments