Wireless Network Engineer

Key Roles & Responsibilities:

1.1.1 Wireless Network Design & Heatmap Simulation

• Conduct predictive wireless heatmap simulations for greenfield/brownfield sites using tools like Ekahau or Cisco Wireless Planning tools.
• Design RF coverage models considering signal strength (RSSI), signal-to-noise ratio (SNR), channel interference, and capacity planning.
• Optimize AP placement, antenna types, and power settings to ensure high performance and seamless roaming.

1.1.2 Wireless Site Surveys & Validation

• Perform Active, Passive, and Spectrum Analysis Surveys using Ekahau Sidekick, AirMagnet tools.
• Conduct pre-deployment and post-deployment surveys to validate coverage, interference, and capacity requirements.
• Identify RF interference sources (e.g., microwaves, Bluetooth, rogue APs) and recommend mitigation strategies.

1.1.3 Cisco Wireless Infrastructure Implementation

• Deploy and configure Cisco Catalyst 9800 Wireless LAN Controllers (WLCs) for enterprise networks.
• Implement and optimize Cisco Access Points (APs) using FlexConnect, Local Mode, or Fabric Mode in Cisco SD-Access environments.
• Configure RF Profiles, RRM (Radio Resource Management), CleanAir, and QoS policies for optimized wireless performance.
• Integrate Cisco WLC with AAA (RADIUS, TACACS), ISE (802.1X), and guest portal authentication.

1.1.4 Wireless Network Troubleshooting & Optimization

• Diagnose and resolve Wi-Fi performance issues, including high latency, packet loss, roaming problems, and signal degradation.
• Use Ekahau, Wireshark, or Cisco DNA Center Assurance for RF analysis and troubleshooting.
• Monitor wireless KPIs such as client connectivity, AP load balancing, spectrum utilization, and interference levels.
• Work with end users to resolve connectivity issues, optimize SSID configurations, and apply security best practices.

1.1.5 Documentation & Reporting

• Create wireless design documentation, heatmaps, and survey reports.
• Develop standard operating procedures (SOPs), wireless network policies, and troubleshooting guides.
• Maintain inventory of AP models, software versions, and RF configurations across multiple sites.

Education/Experience:

• Bachelors or Master’s in IT, or a related field.
• Minimum 3+ years of experience in network engineering and wireless.