Company

Qualcomm India Private Limited

Job Area

Engineering Group, Engineering Group > Systems Test Engineering

General Summary

The WLAN Performance Test Engineer is responsible for validating the throughput, latency, RF performance of Wi-Fi products and Power efficiency under various real-world and lab conditions. The role ensures compliance with IEEE 802.11 standards and identifies performance bottlenecks at PHY/MAC layers.

Key Responsibilities

Performance Validation
Conduct throughput testing using tools such as iPerf, IxChariot, octoScope, Spirent, or IXIA.
Validate performance across different Wi-Fi standards (802.11ac/ax/be).
Measure PHY data rate, throughput, Packet loss, Jitter, Latency, retransmission rate
RF & OTA (Over-the-Air) Testing
Perform RF validation including RvR, RSSI, SNR,Adjacent channel interference
Simulate customer field environment and test performance with different devices including iOS, Mac, Android, Windows
Execute testing inside shield boxes or anechoic chambers.
Load & Scalability Testing
Validate performance under high client density scenarios.




Simulate concurrent traffic (VoIP, video streaming, web traffic).
Interference Testing
Test performance under co-channel and adjacent channel interference.
Evaluate performance in 2.4GHz, 5GHz, and 6GHz bands.
Automation & Scripting
Develop automation scripts using C Sharp, Python.
Automate log collection, KPI extraction and triaging.
Debug & Root Cause Analysis
Analyze packet captures (Wireshark).
Interpret logs from AP, STA, and driver layers.
Work with firmware and PHY teams for issue resolution.
Establish performance benchmarks and release qualification criteria
Mentor engineers, review test strategy/design and promote testing best practices
Support customer escalations with in-depth performance analysis.

Required Skills & Qualification

Education: Bachelor’s or Master’s degree
10-15+ years of experience in WLAN System or performance validation
Wireless Protocols: Solid understand

📌 WLAN Performance Testing - Staff Engineer (Chennai)
🏢 Qualcomm
📍 Chennai