[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Tata Consultancy Services jobs](https://jobs.opennash.com/companies/tata-consultancy-services/) · [Search jobs](/search/) Tata Consultancy Services · Chennai # Network - Routing & Switching Chennai IT & Infrastructure Last seen on Tata Consultancy Services’s official careers site on August 1, 2026; it may have closed since. [Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/next/en-IN/jobs/417063J) [OpenNash Jobs](https://jobs.opennash.com/) / [Tata Consultancy Services](https://jobs.opennash.com/companies/tata-consultancy-services/) / Network - Routing & Switching ## Job description Job Requirements- 6+ years of hands ‑ on experience in Enterprise Networking across Routing, Switching, SDWAN, Wireless and Advanced Network technologiess. Strong expertise in Routing and Switching with solid troubleshooting capability. Practical experience with Cisco SD ‑ WAN (Viptela) and end ‑ to ‑ end SD ‑ WAN fabric troubleshooting. Good understanding of Wireless Networking (Cisco & Aruba) and wireless performance troubleshooting. Hands ‑ on experience with Cisco Catalyst Center (DNAC) for the tasks such as ZTP and SWIM. Strong ability to prioritize tasks, manage multiple workstreams in a fast ‑ paced, deadline ‑ driven environment, and proactively identify and mitigate risks. Proven analytical and troubleshooting skills across multi ‑ layer network issues with effective communication and collaboration across cross ‑ functional teams. ### Key Responsibilities- Enterprise Networking Design, implement, and support large ‑ scale enterprise networks across Routing, Switching, SD ‑ WAN, Wireless, and Advanced Network technologies with a focus on reliability and performance. ### Wireless Networking Implement and m anage Cisco & Aruba wireless infrastructures covering RF design, WLAN architecture, security, seamless roaming and controller/AP provisioning Migration: Perform Legacy to SDWAN Migration. And Aruba to Cisco Wireless Migration. ### Advanced Network Technology Utilize Cisco Catalyst Center (DNAC) to automate network tasks such as Zero ‑ Touch Provisioning (ZTP), Software Image Management (SWIM), and bulk configurations for improved operational efficiency. ### Multi ‑ Layer Troubleshooting Diagnose and resolve complex network issues across Layer 1–7 using structured methodologies, packet captures, and telemetry data to ensure minimal service impact. ### Collaboration & Communication Work closely with cross ‑ functional teams to analyze requirements, design solutions, streamline operations, and deliver clear technical updates to stakeholders.