Job Overview:
We are hiring a skilled Device Test Engineer with 1-8 years of experience in UE-side testing. The ideal candidate should have hands-on experience with 5G testing, log analysis, and tools like ELT & Wireshark.
Key Responsibilities:
✅ Perform 5G/4G/3G device testing, including functional, performance, and network testing
✅ Conduct log analysis using ELT, Wireshark, QXDM, QCAT, ADB, and other debugging tools
✅ Work on UE-side testing for mobile devices and chipsets
✅ Execute protocol and field testing for 5G SA & NSA, VoLTE, VoNR, and Carrier Aggregation
✅ Identify and analyze network-related issues and provide root cause analysis
✅ Collaborate with R&D teams to resolve device issues before market launch
Requirements:
🔹 Experience in 5G device testing (SA/NSA)
🔹 Strong understanding of LTE, VoLTE, VoNR, IMS, and carrier aggregation
🔹 Hands-on experience with log analysis tools (ELT, Wireshark, QXDM, etc.)
🔹 Good understanding of call flows, network protocols, and mobility scenarios
🔹 Experience working with Qualcomm/Mediatek chipset-based devices is a plus.
3GPP Standards & Requirements:
📡 3GPP (3rd Generation Partnership Project) defines global standards for cellular networks like 3G, 4G (LTE), and 5G. Key specifications relevant to this role include:
📌 5G NR (New Radio) Standards:
SA (Standalone) & NSA (Non-Standalone) as per 3GPP Release 15+
VoNR (Voice over New Radio) for voice services in 5G SA
Carrier Aggregation to enhance data speeds and efficiency
📌 4G LTE & IMS (IP Multimedia Subsystem):
VoLTE (Voice over LTE) for seamless voice calls
IMS & SIP-based call flows as per 3GPP TS 23.228, 24.229
📌 Network Protocols & Testing:
5G NR Call Flows – Defined in 3GPP TS 38.300, 38.331
Mobility Scenarios (Handover, Idle/Connected Mode) – 3GPP TS 36.331, 38.331
Understanding and working with these 3GPP specifications is crucial for efficient device testing, debugging, and ensuring compliance with global telecom standards.
Why Join Us?
- Competitive salary and benefits package
- Opportunities for career growth and development
- Collaborative and innovative work environment
