Role - Network Architects L3 - Control Tower [BIO]

Years of Experience - 8 to 12 years

Location - Chennai

- 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 ISEbased 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 ArchitectsControl Tower BIO - Chennai
🏢 Tata Consultancy Services
📍 Chennai