Network Architects L3 - Control Tower [BIO]

Tata Consultancy Services; Chennai District; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

Tata Consultancy Services in Chennai seeks an experienced Network Architect L3 to lead architecture, design, and strategic roadmaps for Cisco Catalyst SD‑WAN or Cisco Wireless solutions, with both preferred.

The role requires 8 to 12 years of hands‑on experience in enterprise LAN, WAN, and WLAN architectures, DNAC, ISE, and security standards, and will guide implementation with cross‑functional teams and governance.

Qualifications

• 8 to 12 years of hands-on architecture experience with Cisco Catalyst SD‑WAN or Cisco Wireless (one mandatory).
• Strong architecture capability in Cisco DNA Center (automation/assurance/analytics).
• Strong design experience with Cisco ISE, including 802.1X, policy enforcement, guest access, and segmentation (SGT/TrustSec).
• Good understanding of segmentation models and QoS standards.

Responsibilities

• 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.
• Architect and integrate Cisco DNA Center (DNAC) for network automation and configuration standardization.
• Review HLD/LLD and guide engineering teams through implementation and rollout governance.

Skills

Cisco Catalyst SD‑WAN

Cisco Wireless

Cisco DNA Center

Cisco ISE

802.1X

TrustSec

Zero‑Trust

LAN/WAN/WLAN architecture

Network architecture leadership

Tools

Cisco DNAC

Cisco ISE

Cisco Catalyst SD‑WAN

Job description

Role - Network Architects L3 - Control Tower [BIO]

Years of Experience - 8 to 12 years

• Key Responsibilities
• yLead 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
• )Architect and integrate Cisco DNA Center (DNAC) for
• :Network automation and configuration standardizatio
• nAssurance/health monitoring and analytic
• sCompliance and lifecycle management (images, upgrades, patches
• )Define operational and architectural standards for leveraging DNAC insights for proactive risk remediation
• nDesign Cisco ISE–based identity, access control, and segmentation architectures
• .Define policies and architecture standards for
• :802.1X, SGT, TrustSec, Guest access, and Zero‑Trust framework
• sEstablish routing, segmentation, QoS, and security standards across LAN/WAN
• eProvide technical leadership during SD‑WAN, wireless, and campus network transformations
• .Review HLD/LLD and guide engineering teams through implementation and rollout governance
• .Collaborate with security, cloud, and application teams for end‑to‑end network integration
• tEvaluate 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)
• .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
• sSegmentation models and QoS standard
• sSecurity architecture alignment (Zero Trust principles
• )Good to Have (Preferred)
• :Both Cisco Catalyst SD‑WAN + 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/chang
• eCertifications (Preferred / Nice to Have
• )Cisco certifications such as CCNP/CCIE (Enterprise/Wireless/Security) (preferred