Network Architects L3 Control Tower

Tata Consultancy Services; Chennai District, Pune District; On-site; INR 350,000 - 520,000; Full time

Job summary

Tata Consultancy Services is seeking an experienced Network Architect to lead the enterprise WAN/LAN and campus networking design, standards, and strategic roadmap. The role will own end-to-end architecture across Cisco Catalyst switching, SDWAN or Wireless (one mandatory; both preferred), and drive automation/assurance through Cisco DNAC alongside identity and segmentation using Cisco ISE/TrustSec.

The position demands hands-on architecture, governance, and collaboration with security, cloud,

Qualifications

• Strong hands-on and architecture experience with Cisco Catalyst SDWAN or Cisco Wireless (one mandatory).
• Proven ability to define LAN/WAN/WLAN enterprise architectures using Cisco Catalyst switching.
• Depth in Cisco DNAC for automation, assurance and analytics.
• Solid experience with Cisco ISE, including 802.1X, policy enforcement, guest access, and segmentation (SGT/TrustSec).
• Understanding of routing, campus design, segmentation models and QoS standards.

Responsibilities

• Lead architecture, design, and strategic roadmap for Cisco Catalyst SDWAN or Cisco Wireless solutions.
• Define enterprise LAN, WAN, and WLAN architectures leveraging Cisco Catalyst switching.
• Design scalable, resilient network solutions aligned with business and security requirements.
• Establish architecture guardrails to ensure enterprise, regulatory, and security compliance.
• Architect and integrate Cisco DNAC for automation, assurance, and analytics; guide lifecycle management.
• Design Cisco ISE-based identity, access control, and segmentation architectures; enforce 802.1X and TrustSec.
• Provide technical leadership during SDWAN, wireless, and campus network transformations; governance of designs.
• Collaborate with security, cloud, and application teams for end-to-end network integration.
• Evaluate new Cisco technologies and lead modernization initiatives for performance and availability.

Skills

Cisco Catalyst SDWAN

Cisco Wireless

Cisco DNAC

Cisco ISE

802.1X

TrustSec

Guest access

Zero Trust

LAN/WAN/WLAN architecture

Job description

Job Description: Network Architect (Cisco Catalyst SDWAN / Cisco Wireless)

Role Title

Network Architect Cisco Catalyst SDWAN / Cisco Wireless (DNAC + ISE)

Role Summary

We are seeking an experienced Network Architect to lead the enterprise architecture, design standards, and strategic roadmap for nextgeneration campus and WAN networking. The role will own endtoend architecture across Cisco Catalyst Switching (LAN), Cisco Catalyst SDWAN or Cisco Wireless (one mandatory; both preferred), and drive automation/assurance through Cisco DNA Center (DNAC) alongside identity and segmentation architectures using Cisco ISE / TrustSec.

Key Responsibilities

Architecture & Strategy

• Lead the architecture, design, and strategic roadmap for Cisco Catalyst SDWAN or Cisco Wireless solutions (either one mandatory; both preferred).
• Define enterprisegrade LAN, WAN, and WLAN architectures using Cisco Catalyst switching platforms.
• Design scalable, resilient network solutions aligned with business, reliability, and security requirements.
• Establish architecture guardrails to ensure compliance with enterprise, regulatory, and security standards.

Cisco DNAC (Automation, Assurance, Analytics)

• Architect and integrate Cisco DNA Center (DNAC) for:
  • Network automation and configuration standardization
  • Assurance/health monitoring and analytics
  • Compliance and lifecycle management (images, upgrades, patches)
• Define operational and architectural standards for leveraging DNAC insights for proactive risk remediation.

Cisco ISE & Zero Trust Segmentation

• Design Cisco ISE–based identity, access control, and segmentation architectures.
• Define policies and architecture standards for:
  • 802.1X, SGT, TrustSec, Guest access, and ZeroTrust frameworks
• Establish routing, segmentation, QoS, and security standards across LAN/WAN.

Transformation Leadership & Design Governance

• Provide technical leadership during SDWAN, wireless, and campus network transformations.
• Review HLD/LLD and guide engineering teams through implementation and rollout governance.
• Act as escalation point for complex design/integration issues; drive RCA-based architectural improvements.
• Collaborate with security, cloud, and application teams for endtoend network integration.

Innovation & Continuous Improvement

• Evaluate new Cisco technologies and lead modernization initiatives.
• Drive measurable improvements in performance, scalability, availability, and operational efficiency.

Required Skills & Experience (Must Have)

• Strong handson and architecture experience with Cisco Catalyst SDWAN OR Cisco Wireless (one mandatory).
• Proven experience defining LAN/WAN/WLAN enterprise architectures using Cisco Catalyst switching.
• Strong architecture capability in Cisco DNAC (automation/assurance/analytics)
• Strong design experience with Cisco ISE, including 802.1X, policy enforcement, guest access, and segmentation (SGT/TrustSec)
• Strong understanding of:
  • Routing & campus design principles
  • Segmentation models and QoS standards