101 Network Design jobs in Chennai

Tata Consultancy Services is Hiring for Network - Cisco/Aurba WIFI

Experience: 8- 12 Yrs

Location: Gurgaon/Chennai

Must-Have

• Co-ordinating with ISP’s Vendors for the link down/related issues
• Detect and respond to incidents proactively, with clear escalation procedures and communication channels.
• Deliver regular reports on network performance, including bandwidth utilization, latency, uptime, and availability metrics, with actionable insights for network optimization.

SD WAN

• Manage private links ensuring high-performance WAN links that connects remote sites with redundancy and failover solutions.
• Manage SD-WAN solutions, enabling dynamic routing and bandwidth optimization across regions.
• Provide mechanisms to minimize jitter, latency and packet loss, ensuring an optimal user experience for global collaboration tools.

Branch Network WAN

• Manage WAN links connecting all branches ensuring redundancy and high availability for office locations and retail outlets across the country.
• Ensure stable and secure network connections for all branch offices and locations, with real-time monitoring and troubleshooting.
• L2 Network Troubleshooting, capacity trend/problem identification, patching, configuration management

LAN/Wi-Fi

• Full lifecycle management of LAN, including switch configuration, monitoring, and troubleshooting.
• Manage the Wi-Fi network, ensuring coverage, security, and performance for both office and remote locations.
• Provide secure, segregated guest Wi-Fi access with appropriate bandwidth controls.

Audit Participation and Documentation

• Participate in all audits requested by the customer, including filling in required forms and collecting relevant data.
• Ensure timely and accurate submission of all requested audit materials.
• Complete all audit questionnaires and related documents as required by the customer, ensuring thoroughness and compliance with the scope of the service provided.

Provide supporting evidence, as needed.

Summary

The Specialist IT Infrastructure will install, maintain, upgrade, and continuously improve the site's networkoperating environment, ensuring the ongoing reliability, performance and security of the infrastructure. Thisincludes monitoring and up keeping the network operating environments; responding to incidents & problems,planning for growth, deployment of new technologies as well as design, install, configure, maintain andperform testing of Network Operating systems (IOS, Firmware, and Software), networks, and related utilitiesand hardware. The successful candidate will manage and maintain network devices on the customer premisesand will be expected to work to several key performance indicators: SLA targets, capacity management andcustomer visits/communications.

Detailed Description

Provide technical support and perform maintenance

Install, maintain and configure network hardware and equipment, routers, switches, wireless access point(ARUBA Access points), and SDWAN devices(Aruba Silverpeak or Viptela or any other SDWAN).

Manage, monitor, and support various network devices (Cisco, Open source Network device, Aruba SDWAN,Wireless, firewalls and NAC)

Documenting processes and monitoring network performance metrics.

Explore new solutions, enhancements and opportunities for continuous improvement, projects and more

Perform the acquisition, provisioning and decommissioning of related equipment, software and services

Formally document change requests and manage the changes

Manage external service providers

Foster and develop a trusting relationship with the customer as well as internal resources, and be thecustomer advocate

Knowledge/Skills/Competencies

Strong customer service orientation

Strong analytical, troubleshooting and problem solving skills.

Ability to communicate confidently and directly with executive stakeholders as well as end-client technicalteams.

Good leadership and teamwork skills.

Negotiation and conflict resolution skills.

Good ability to plan projects and tasks.

Good understanding of IT requirements for an end to end solution, including security, business continuity,disaster recovery, risk analysis and prepare business case

Job Description:

Strong knowledge of networking concepts (OSI Layers, TCP/IP, VLAN, VxLAN, VPN, IPSec, GRE, LAN, WAN,802.1x, VTP, Spanning-Tree, IP routing, BGP, OSPF, EIGRP, QoS, Trunking, and SDWAN)

Advanced knowledge of infrastructure service management & diagnostic tools and processes

Hands-on-experience on Monitoring tools such as Solarwinds, Netscout, Dorada Cruz

Understanding of IT Infrastructure asset lifecycle management

Extensive experience in the design of local area and wide area networks. Complexity of projects ranges fromsimple projects with minimal risks/ uncertainty to medium level projects with some high impact risks andmultiple project variables with uncertainty.

Excellent understanding of IP, MPLS, WAN, Ethernet, Wireless networking technologies.

Experience with data Centre design, security principles, computing infrastructure.

Engaged by the unknowns of implementing emergent technologies and industry standards.

Experience with Cisco 6500, 2960x, 9300, 9500 and Nexus 5000, 7K, 9K is highly desired.

Excellent understanding of IP addressing, and subnetting

Excellent understanding of Software Defined WAN (SDWAN)

Excellent understanding of VLAN, Trunking, 802.1q, Spanning-Tree, VTP, and Prevention of NetworkLooping

Excellent understanding of Network routing protocols, such as OSPF, EIGRP, BGP and IS-IS

Excellent understanding of Network Access Control (NAC) that includes 802.1x and MAB utilizing anexternal Radius server (Aruba ClearPass, Cisco ISE)

Managing IP address, IP subnet blocks, and resolving IP conflicts issues.

Must have experience working in an enterprise Datacenter environment.

Cloud migration experience is preferred.

Technical competencies include: Cisco network devices, Cisco Works, Cisco Switching expertise, networksecurity, routing protocols and configurations, understanding of the VPN infrastructure, identify and closenetwork security issues, understanding of MPLS infrastructure, managed solutions, in-depth knowledge ofkey vendor solutions

Exposure to OPEN Source Networking, Monitoring, and Automation

Experience with Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) Zero Touch Network Access.

Physical Demands

Duties of this position are performed in a normal office environment.

Duties may require extended periods of sitting and sustained visual concentration on a computer monitor oron numbers and other detailed data. Repetitive manual movements (e.g., data entry, using a computermouse, using a calculator, etc.) are frequently required.

Typical Experience

6 to 10 years of related experience. Experience in similar job roles such as the design of local area and widearea networks.

2 to 4 years experience in a similar technical analyst/ network specialist role supporting Cisco equipmentand software

Experience on IP networks and Cisco Networking Products

Extensive experience with Inter-Network Operating Systems such as Cisco, Aruba, CheckPoint, and OpenSource Network Operating System.

Typical Education

Bachelor's Degree in Computer Science or related field

Cisco Certified Network Associate (CCNA)

Microsoft Certified System Engineer (MCSE)

Cisco Certified Network Professional (CCNP)

Greetings from TCS!

**TCS is Hiring for Network Engineer(WAN technology)**

Role: Network Engineer

Desired Experience: 3- 6 Years

Job Location: Chennai

Job Description:

• Strong exposure in Cisco SDWAN design and deployments
• Expertise on Cisco DNA
• Deploying Unified communications capabilities in Cisco SD-WAN
• Exposure on Cisco SD-WAN Cloud OnRamp for IaaS, PaaS, and SaaS applications
• Sec. skill : Cisco Routing /Switching, Firewalls administration etc.

Tcs is hiring for Network - Cisco/Aurba WIFI

EXP - 8 to12 yrs

Location - Chennai

Role

Network Engineer

Required Technical Skill Set

LAN, WI-FI, Cisco SDWAN, Routing, Switching, Cisco WLC, Cisco ISE, Cisco DNAC, Aruba Controller & Clear pass

Certification Recommended

Cisco Certified Network Professional (CCNP)

Cisco Certified Specialist - Enterprise Core

Cisco Certified Specialist - Enterprise SD-WAN

• Co-ordinating with ISP’s Vendors for the link down/related issues
• Detect and respond to incidents proactively, with clear escalation procedures and communication channels.
• Deliver regular reports on network performance, including bandwidth utilization, latency, uptime, and availability metrics, with actionable insights for network optimization.

SD WAN

• Manage private links ensuring high-performance WAN links that connects remote sites with redundancy and failover solutions.
• Manage SD-WAN solutions, enabling dynamic routing and bandwidth optimization across regions.
• Provide mechanisms to minimize jitter, latency and packet loss, ensuring an optimal user experience for global collaboration tools.

Branch Network WAN

• Manage WAN links connecting all branches ensuring redundancy and high availability for office locations and retail outlets across the country.
• Ensure stable and secure network connections for all branch offices and locations, with real-time monitoring and troubleshooting.
• L2 Network Troubleshooting, capacity trend/problem identification, patching, configuration management

LAN/Wi-Fi

• Full lifecycle management of LAN, including switch configuration, monitoring, and troubleshooting.
• Manage the Wi-Fi network, ensuring coverage, security, and performance for both office and remote locations.
• Provide secure, segregated guest Wi-Fi access with appropriate bandwidth controls.

Audit Participation and Documentation

• Participate in all audits requested by the customer, including filling in required forms and collecting relevant data.
• Ensure timely and accurate submission of all requested audit materials.
• Complete all audit questionnaires and related documents as required by the customer, ensuring thoroughness and compliance with the scope of the service provided.

Job Description:

Ø Troubleshoot/Diagnose all Level 1 issues from the customers and driving satisfactory resolution of the issues.

Ø Troubleshoot Product, Codes and Configuration issues

Ø Ensure consistent customer satisfaction

Ø Document all communication with customers in the CRM

Ø Interface with international customers

Ø Timely handoff (escalation) of cases that require technical or political to L2/L3 TAC

Primary Skills:

Ø OSI layers – detailed understanding of each layer’s function and relevant protocols that operates at each level

Ø TCP/IP – thorough understanding and clear explanation about windowing/handshake mechanism

Ø MAC header structure and use of each fields

Ø IP header structure and use of each fields

Ø ARP – how ARP works in a Layer 2 and Layer 3 communication

Ø Mac address table fields and how a switch uses MAC table for switching decisions

Ø ARP table and how a switch uses ARP table

Ø Routing Table fields and how a Router uses routing table for routing decisions

Ø DHCP protocol messages (clear understanding of DORA process)

Ø DHCP operation in layer 2 and layer 3 scenarios (server & client in same vlan or different VLAN)

Ø thorough understanding of Broadcast domain and Collision Domain

Ø thorough understanding of Unicast, Multicast and Broadcast traffic

Ø thorough understanding of Subnetting, Vlan, VTP, 802.1q, STP, Linkage

Ø thorough understanding of RIP (version 1 and 2) and OSPF (link states, LSA types, area types, router types, neighbor communication)

Ø Difference between Routing and Routed protocols

Ø Good troubleshooting approach (from Level 1 to 7 of OSI)

Hiring = Network Engineer L1

Experience

• 2-4 Years
• Basic understanding of networking concepts and protocols.
• Experience with SD-WAN technologies and tools.
• Familiarity with circuit monitoring tools and techniques.
• Strong communication skills for effective ISP coordination.
• Ability to generate and analyze technical reports.

Special Knowledge, Skills, and Abilities

• Excellent communication skills (written and verbal)
• Ability to communicate correctly and clearly with all internal and external customers.
• Excellent documentation skills
• Good comprehension skills ability to clearly understand and state the issues customers present.
• Good composition skills ability to compose a grammatically correct, concise, and accurate written response.
• Work successfully in a team environment as well as independently
• Ability to use a desktop computer system.
• Familiarity with Windows, Microsoft Office & Browsing Internet resources.
• Excellent typing skills
• Excellent customer service skills, including maintaining focus on the customer issue in a fast-paced environment.
• Demonstrates ownership to resolve challenging customer issues, escalating when necessary.
• Flexible with the working schedule; may be expected to work weekends, holidays and events.
• Ability to approach problems logically and rationally.
• Action oriented and self-disciplined
• Organized and detail oriented.
• Resolving Technical complex queries
• Drive continuous improvement through root cause identification and defect elimination.

Work Location:

• Chennai (Work from office – NO REMOTE work option)

Work Environment:

24/7 and 5 days of work from office.

Interested can share resume to

Job Profile - Network Engineer

Location: - Chennai

Level: - L3 Engineer

Shift : Flexible to work in US timings

Responsibilities:

• Provide advanced-level technical support and troubleshooting for Data Center Networking products and solutions (spine-leaf architectures, VXLAN, BGP EVPN, etc.).
• Own critical customer escalations, drive root cause analysis, and coordinate with product engineering for fixes and enhancements.
• Mentor L1 and L2 engineers through real-time collaboration, training and lab sessions.
• Deliver high-quality technical solutions and guidance in both reactive and proactive support scenarios.
• Collaborate cross-functionally with engineering, PLM, product quality, and supply chain team.
• Create and deliver technical content (knowledge articles, whitepapers, best practices) to scale expertise across HPE and our customers.
• Actively contribute to customer success by identifying trends and recommending improvements to network architectures and supportability.
• Participate in on-call rotations and act as a technical lead during Severity 1 customer escalations.

Education and Experience:

• Bachelor’s degree in Engineering, Computer Science, or equivalent experience.
• 5+ years of relevant technical experience in Data Center Networking.
• Previous experience in a Level 2/3 technical support or advanced escalation role.

Required Skills and Qualifications:

• Expertise in Data Center Networking technologies: VXLAN, BGP EVPN, OSPF, BGP, MPLS, STP, etc.
• Deep understanding of Layer 2/Layer 3 networking, SDN/NFV environments, and fabric-based architectures.
• Proficient in analyzing network packet captures, system logs, and advanced diagnostics.
• Hands-on experience with hardware/software platforms from Aruba, Cisco, Juniper, Arista, or similar.
• Strong communication and customer engagement skills, with the ability to work under pressure.
• Industry certifications strongly preferred: Aruba Certified Professional or Expert (ACSP/ACDX), CCNP/CCIE, JNCIP/JNCIE.

Preferred Qualifications:

• Experience with network automation (Python, Ansible, Terraform) is a plus.

Knowledge of virtualization (VMware NSX, Hyper-V) and cloud networking (AWS, Azure) is advantageous