Network Support Engineer

Tata Consultancy Services; Chennai District, Ernakulam; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

Tata Consultancy Services is seeking a skilled Network Support Engineer in Chennai to own Aruba-based LAN/WLAN infrastructure, including CX switches, APs, and mobility controllers. You will lead end-to-end configuration, troubleshooting, and performance optimization in a large enterprise setting.

The role requires 10–18 years of hands-on experience with Aruba switches and wireless, strong diagnostic skills using CLI, Wireshark, AirWave/Aruba Central, and collaboration with IT security teams.

Qualifications

• L3 Network Engineer with deep Aruba switching and mobility expertise.
• Experience with end-to-end ownership of Layer 2/3 network infrastructure.
• Experience with wireless deployments and troubleshooting in large enterprise environments.

Responsibilities

• Deploy, configure, and manage Aruba CX switches (6300/6400) using AOS-CX.
• Design, configure, and maintain Aruba CX and legacy switches including VLANs, STP, MSTP, OSPF, BGP, and ACLs.
• Configure VXLAN overlays for campus fabric and access segmentation.
• Utilize Aruba NetEdit and Aruba Central and HP iMC monitoring.
• Monitor switch performance and proactively address bottlenecks and outages.
• Participate in network design and capacity planning.
• Assist in troubleshooting complex network issues with IT teams.
• Deploy, manage, and troubleshoot Aruba Mobility Controllers and APs.
• Implement 802.1X, MAC auth, and Captive Portal using ClearPass.
• Analyze wireless connectivity, RF optimization, and roaming issues with AirWave/Aruba Central.
• Ensure end-to-end network performance monitoring and issue resolution (wired and wireless).
• Conduct firmware upgrades, audits, and ensure compliance with standards.
• Document network design and troubleshooting procedures.
• Work within ITIL change management and provide on-call support.

Skills

Aruba switches

Aruba wireless

L3 networking

Tools

Aruba NetEdit

Aruba Central

HP iMC

AirWave

Wireshark

CLI

Job description

Job Title: Network support engineer

Skills: Aruba switches & wireless

Experience: 10 to 18 years.

Location: Chennai, Kochi

Job Description:

We are looking for a skilled and self-driven L3 Network Engineer with deep expertise in Aruba switching (CX and legacy), mobility controllers, Aruba APs, the role involves end-to-end ownership of Layer 2/3 network infrastructure, wireless deployments, security enforcement, and advanced troubleshooting in large enterprise environments.

Key Responsibilities:

• Deploy, configure, and manage Aruba CX switches (e.g., 6300, 6400 series) using AOS-CX
• Maintain and support legacy Aruba switch models (e.g., 2530,2610,2620, 2920, 2930F,) using AOS-Switch (AOS-S).
• Design, configure, and maintain Aruba CX and legacy switches including VLANs, STP, MSTP, OSPF, BGP, static routing, ACLs, port profiles, VSF/stacking and other Layer 2/3 features.
• Configure and optimize VXLAN overlays for campus fabric and access segmentation.
• Utilize Aruba NetEdit and Aruba Central and HP iMC monitoring.
• Monitor switch performance and proactively address network bottlenecks and outages.
• Participate in network design and capacity planning.
• Assist in troubleshooting complex network issues in collaboration with other IT teams.
• Deploy, manage, and troubleshoot Aruba Mobility Controllers (MM/MC) and Access Points (AP-505, AP-305, AP-515).
• Implement and support 802.1X authentication, MAC auth, Captive Portal using Aruba ClearPass Policy Manager.
• Analyze and resolve wireless connectivity issues, RF optimization, and roaming problems using tools like AirWave or Aruba Central.
• Ensure end-to-end network performance monitoring and issue resolution (wired and wireless).
• Conduct firmware upgrades, configuration audits, and ensure compliance with network standards.
• Participate in network design and transformation projects, collaborating with architects and security teams.
• Create and maintain detailed documentation for network design, configuration standards, and troubleshooting procedures.
• Work within change management processes (ITIL) and support incident/problem resolution.
• Provide on-call and after-hours support as required.
• Proficient in network diagnostics using CLI, Wireshark, SNMP tools, and AirWave/Aruba Central.

Certifications (Preferred):

• Aruba Certified Switching Associate (ACSA)
• Aruba Certified Switching Professional (ACSP)
• Aruba Certified Mobility Associate/Professional (ACMA/ACMP)

Soft Skills:

• Strong analytical and problem-solving capabilities.
• Excellent communication and documentation skills.
• Ability to lead technical discussions with internal teams and vendors.
• Proactive and ownership-driven approach in managing the network.