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

1. 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

2. RF & OTA (Over-the-Air) Testing
• Perform RF validation including RvR, RSSI, SNR,Adjacent channel interference
• Simulate customer field setting and test performance with different devices including iOS, Mac, Android, Windows
• Execute testing inside shield boxes or anechoic chambers.

3. Load & Scalability Testing




• Validate performance under high client density scenarios.
• Simulate concurrent traffic (VoIP, video streaming, web traffic).

4. Interference Testing
• Test performance under co-channel and adjacent channel interference.
• Evaluate performance in 2.4GHz, 5GHz, and 6GHz bands.

5. Automation & Scripting
• Develop automation scripts using C Sharp, Python.
• Automate log collection, KPI extraction and triaging.

6. 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.
7. Establish performance benchmarks and release qualification criteria
8. Mentor engineers, review test strategy/design and promote testing best practices
9. 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 p

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