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Network Architect

Job in 600001, Chennai, Tamil Nadu, India
Listing for: Tata Consultancy Services
Full Time position
Listed on 2026-06-06
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
Job Description & How to Apply Below
Role:
Network Architect (Cisco Catalyst SD‑WAN / Cisco Wireless)

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

Key Responsibilities
Architecture & Strategy
Lead the  architecture, design, and strategic roadmap  for  Cisco Catalyst SD‑WAN  or  Cisco Wireless  solutions (either one mandatory; both preferred).
Define  enterprise‑grade 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 ,  Trust Sec ,  Guest access , and  Zero‑Trust frameworks
Establish routing, segmentation, QoS, and security standards across LAN/WAN.
Transformation Leadership & Design Governance
Provide technical leadership during  SD‑WAN, 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  end‑to‑end 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 hands‑on and architecture experience with  Cisco Catalyst SD‑WAN 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/Trust Sec)
Strong understanding of:
Routing & campus design principles
Segmentation models and QoS standards
Security architecture alignment (Zero Trust principles)
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