We are seeking an experienced Wireless Network Security Engineer to manage, support, secure, and optimize enterprise wireless infrastructure across a large-scale global environment. The role will focus on wireless network operations, security governance, troubleshooting, and implementation of secure wireless solutions using Aruba and Cisco technologies.This is an offshore-based role supporting global operations from Chennai. The candidate will work closely with network, security, and infrastructure teams to ensure a secure, scalable, and highly available wireless environment.Wireless Technologies

- Aruba Wireless Controllers (Mobility Controllers)

- Aruba Central

- Aruba AirWave

- Aruba ClearPass Policy Manager

- Cisco Wireless LAN Controllers (WLC)

- Cisco Access Points

- Wireless RF Planning and Optimization

- WLAN Security Implementation

Networking

- TCP/IP

- VLANs

- Routing &
- Switching

- OSPF, BGP, EIGRP

- DHCP, DNS

- Network Segmentation

Security Technologies

- Network Access Control (NAC)

- 802.1X Authentication

- RADIUS/TACACS+

- WPA2/WPA3 Enterprise

- Guest Access Management

- Identity-Based Access Control

- Security Monitoring and Incident Analysis

Valuable to Have

- Cisco ISE

- SD-WAN

- Azure/AWS Networking

- Python/Automation

- Aruba EdgeConnect

- Zero Trust Networking

Key ResponsibilitiesWireless Infrastructure Management

- Administer and support enterprise Aruba and Cisco wireless environments.

- Configure and manage wireless controllers, access points, and associated services.

- Perform wireless deployments, upgrades, and migrations.

- Conduct RF analysis,



wireless surveys, capacity planning, and performance optimization.

Wireless Security Administration

- Manage and maintain Aruba ClearPass and NAC solutions.

- Implement secure wireless authentication mechanisms using 802.1X, RADIUS, and certificate-based authentication.

- Enforce wireless security policies and access controls.

- Manage guest access, BYOD onboarding, and device profiling.

Monitoring &

- Troubleshooting

- Troubleshoot complex Layer 2/Layer 3 and wireless connectivity issues.

- Perform root cause analysis for recurring network and wireless issues.

- Monitor wireless performance, client health, roaming events, and security incidents.

- Participate in major incident management and problem management activities.

Security Compliance &

- Governance

- Ensure adherence to enterprise security standards and compliance requirements.

- Support security audits, vulnerability remediation, and risk assessments.

- Review wireless security posture and recommend improvements.

- Implement security hardening and best practices.

Change &

- Release Management

- Execute planned changes following change management processes.

- Perform firmware and software upgrades on wireless infrastructure.

- Develop rollback plans and validate successful implementations.

Documentation &

- Reporting

- Create and maintain High-Level Design (HLD), Low-Level Design (LLD), SOPs, and operational runbooks.

- Produce operational reports, security findings, and capacity planning recommendations.

- Maintain accurate network and wireless architecture documentation.

📌 Wireless Network Security Engineer (Chennai)
🏢 Tata Consultancy Services
📍 Chennai