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Posted 30 August, 2026

Network Architects L3 - Control Tower [BIO] (Walk-in)

Tata Consultancy Services
600001, TN, IN Full Time
Reference: 70cf91095ac8396a

Job Description

Role - Network Architects L3 - Control Tower [BIO] (Walk-in)

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Years of Experience - 6 to 13 years

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Location - Chennai

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  • Key Responsibilities
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  • :Architecture & Strateg
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  • yLead the architecture, design, and strategic roadmap for Cisco Catalyst SD‑WAN or Cisco Wireless solutions (either one mandatory; both preferred)
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  • .Define enterprise‑grade LAN, WAN, and WLAN architectures using Cisco Catalyst switching platforms
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  • .Design scalable, resilient network solutions aligned with business, reliability, and security requirements
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  • .Establish architecture guardrails to ensure compliance with enterprise, regulatory, and security standards
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  • .Cisco DNAC (Automation, Assurance, Analytics
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  • )Architect and integrate Cisco DNA Center (DNAC) for
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  • :Network automation and configuration standardizatio
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  • nAssurance/health monitoring and analytic
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  • sCompliance and lifecycle management (images, upgrades, patches
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  • )Define operational and architectural standards for leveraging DNAC insights for proactive risk remediation
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  • .Cisco ISE & Zero Trust Segmentatio
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  • nDesign Cisco ISE–based identity, access control, and segmentation architectures
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  • .Define policies and architecture standards for
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  • :802.1X, SGT, TrustSec, Guest access, and Zero‑Trust framework
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  • sEstablish routing, segmentation, QoS, and security standards across LAN/WAN
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  • .Transformation Leadership & Design Governanc
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  • eProvide technical leadership during SD‑WAN, wireless, and campus network transformations
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  • .Review HLD/LLD and guide engineering teams through implementation and rollout governance
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  • .Act as escalation point for complex design/integration issues; drive RCA‑based architectural improvements
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  • .Collaborate with security, cloud, and application teams for end‑to‑end network integration
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  • .Innovation & Continuous Improvemen
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  • tEvaluate new Cisco technologies and lead modernization initiatives
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  • .Drive measurable improvements in performance, scalability, availability, and operational efficiency
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  • .Required Skills & Experience (Must Have)
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  • :Strong hands‑on and architecture experience with Cisco Catalyst SD‑WAN OR Cisco Wireless (one mandatory)
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  • .Proven experience defining LAN/WAN/WLAN enterprise architectures using Cisco Catalyst switching
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  • .Strong architecture capability in Cisco DNAC (automation/assurance/analytics
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  • )Strong design experience with Cisco ISE, including 802.1X, policy enforcement, guest access, and segmentation (SGT/TrustSec
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  • )Strong understanding of
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  • :Routing & campus design principle
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  • sSegmentation models and QoS standard
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  • sSecurity architecture alignment (Zero Trust principles
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  • )Good to Have (Preferred)
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  • :Both Cisco Catalyst SD‑WAN + Cisco Wireless architecture experience
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  • .SDA / fabric-based campus design exposure with DNAC + ISE integration
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  • .Working knowledge of enterprise security integrations and cross-domain architecture governance
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  • .ITIL/ITSM process exposure (incident/problem/chang
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  • eCertifications (Preferred / Nice to Have
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  • )Cisco certifications such as CCNP/CCIE (Enterprise/Wireless/Security) (preferred
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