Network Architect

Tata Consultancy Services; Chennai District; On-site; INR 3,000,000 - 5,500,000; Full time

Job summary

Tata Consultancy Services is seeking an experienced Network Architect to lead the enterprise networking architecture, standards, and strategic roadmap for campus, WAN, and wireless deployments. The role focuses on Cisco Catalyst LAN, SDWAN, Wireless, and DNAC-driven automation with identity and segmentation using Cisco ISE.

The ideal candidate brings strong hands-on architecture experience with Cisco Catalyst SDWAN or Wireless, plus DNAC and ISE expertise to drive end-to-end integration,

Qualifications

• Experience with Cisco Catalyst SDWAN or Cisco Wireless (one mandatory)
• Strong experience with Cisco DNAC for automation, assurance and analytics
• Strong design experience with Cisco ISE including 802.1X, policy enforcement, guest access and segmentation (SGT/TrustSec)
• Understanding of segmentation models, QoS standards and security alignment with Zero Trust principles

Responsibilities

• Lead architecture, design, and strategic roadmap for LAN, WAN and WLAN solutions (Catalyst SDWAN or Wireless)
• Define enterprise-grade LAN/WAN/WLAN architectures using Catalyst platforms
• Architect DNAC integration for automation, health monitoring, and lifecycle management
• Define identity, access control, and segmentation architectures using ISE and TrustSec
• Establish architecture guardrails to meet security, regulatory and enterprise standards
• Review HLD/LLD and guide engineering teams through rollout governance
• Collaborate with security, cloud, and applications teams for end-to-end network integration
• Drive modernization and measurable improvements in performance, scalability, and availability

Skills

Cisco Catalyst SDWAN

Cisco Wireless

Cisco DNAC

Cisco ISE

802.1X

TrustSec

Zero Trust

Job description

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.
• 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.
• 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.
• 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 RCAbased architectural improvements.
• Collaborate with security, cloud, and application teams for endtoend network integration.
• 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).
• 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:
• Segmentation models and QoS standards
• Security architecture alignment (Zero Trust principles)

Good to Have (Preferred)

• Both Cisco Catalyst SDWAN + Cisco Wireless architecture experience.
• SDA / fabric-based campus design exposure with DNAC + ISE integration.
• Working knowledge of enterprise security integrations and cross-domain architecture governance.
• ITIL/ITSM process exposure (incident/problem/change

Certifications (Preferred / Nice to Have)

• Cisco certifications such as CCNP/CCIE (Enterprise/Wireless/Security) (preferred)