Device Test Engineer – Marquistech – Noida

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