NTT DATA-MS Network Engineer

Job Summary

We are seeking an experienced L3 Wireless Network Engineer with strong expertise in Aruba Wireless + ClearPass , Arista Wireless / Cloud Vision

. The engineer will be responsible for providing Level 3 support, troubleshooting wireless infrastructure issues, monitoring network performance, and ensuring high availability of enterprise Wi-Fi services.

Key Responsibilities

• Provide Level-3 operational support for Aruba Wireless , clearpass and Arista CloudVision environments.
• Monitor and troubleshoot enterprise wireless infrastructure including Access Points (APs), controllers, and cloud-managed platforms.
• Diagnose and resolve wireless connectivity, roaming, authentication, and performance-related issues.
• Support onboarding, provisioning, and configuration of wireless devices.
• Perform incident management, problem management, and root cause analysis (RCA).
• Work on change requests, service requests, and maintenance activities.
• Monitor wireless network health, RF performance, and client connectivity.
• Collaborate with L3 engineers, vendors, and customers for complex issue resolution.
• Maintain operational documentation, SOPs, and knowledge base articles.
• Participate in major incident calls and support activities in a 24x7 environment.

Primary Technical Skills (Must Have)

• Good knowledge on IEEE WIFI standards and working principles.
• Thorough understanding of Aruba wireless infrastructure.
• L3 knowledge on wireless security features, including access-lists, firewalls, encryption and roaming.
• Design, implement and support WLANs by performing and documenting based on wireless site survey
• Should have good knowledge in Aruba wireless controllers, Clear pass & Aruba Central
• Support of Wireless infrastructure including Aruba Airwave, Aruba Controller, Aruba 7200 Mobility, Aruba Activate, Clear pass, Aruba aps Rap3/ Rap155/ 303H/ 203R/ 205H etc
• Perform critical wireless network assessments, modeling & analysis, Good Troubleshooting skills on major WIFI issues
• Experience in upgrading the controllers, Access points & Central
• Troubleshoot and perform remediation repairs on access points.
• Develop device configuration files from scratch and modify existing configuration files in AP & Controller
• Good understanding of Switching & Routing.
• Diagnose difficult network performance problems and interact with application support teams to diagnose network or application performance issues.
• Experience with Guest networking solutions
• Good knowledge on WLC & AP Redundancy techniques
• Aruba Mobility Controllers
• Aruba Instant
• Aruba Mobility Controllers
• Aruba Access Points
• Aruba Central (Preferred)
• WLAN Configuration and Troubleshooting
• RF Optimization and Client Connectivity Issues
• SSID and Security Policy Management

Arista Wireless

• Arista WiFi / Cognitive WiFi Administration
• Access Point provisioning and troubleshooting
• SSID creation and management
• Security policy configuration
• Guest Wireless configuration
• RF optimization and wireless performance analysis
• Wireless client troubleshooting

Arista CloudVision

• CloudVision Portal (CVP) monitoring and operations
• Device inventory and lifecycle management
• Network visibility and analytics
• Configuration management
• Event correlation and troubleshooting
• Dashboard monitoring and reporting

Wireless Technologies

• 802.11 a/b/g/n/ac/ax standards
• RF fundamentals and spectrum analysis
• Channel planning and interference troubleshooting
• Roaming optimization
• Client authentication troubleshooting