Role Title: Network Architect Cisco Catalyst SDWAN / Cisco Wireless (DNAC + ISE)
Location: Chennai
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 RCAbased 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)
Robust 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
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)

📌 Network Architect (Chennai)
🏢 Tata Consultancy Services
📍 Chennai