Senior QA Engineer

We are looking for a Senior QA Engineer with strong hands-on experience in 5G Core Network (5GC) testing. The ideal candidate should have a solid understanding of 4G/5G Core architecture, network protocols, and end-to-end call/data session flows. The role involves validation, troubleshooting, automation, and ensuring product quality across all 5G Core network functions and interfaces.

Responsibilities

• Perform functional, regression, and integration testing for 5G Core components (AMF, SMF, UPF, PCF, NRF, UDM, AUSF, NSSF).
• Validate end-to-end call flows, including registration, PDU session establishment, handovers, and mobility scenarios.
• Execute interoperability tests between 5G Core and RAN / IMS / OSS systems.
• Analyze and verify N1 N2 N3 N4 N6 N8 N10 N11 and N13 interfaces using tools like Wireshark, tcpdump, or similar.
• Conduct negative and robustness testing for protocol conformance and system stability.