IMS Engineer Job Opening in For a Client of TeamLease Digital at Kolkata

The IMS Engineer will be responsible for:- Executing end-to-end testing of IMS features, including VoLTE, VoWiFi, SMS over IP, RCS, and emergency calling. - Performing functional, regression, and interoperability testing on Nokia IMS components (TAS, SBC, CSCF, HSS/UDM, MMTel, etc.)

- Analyzing SIP call flows, logs, and trace files using tools like Wireshark, Nokia NetAct, and vendor-specific debug tools. - Validating system behavior on cloud-native architectures (containerized and virtualized IMS).

- Developing test cases, test plans, and detailed test reports compliant with customer and 3GPP requirements. - Identifying, logging, and tracking defects; collaborating with R&D, solution architects, and integration teams to ensure resolution.

- Supporting operator trials, feature verification, and solution acceptance testing in lab and field environments. - Collaborating with cross-functional Nokia teams to ensure product quality, performance, and compliance.

Required Skills & Qualifications:- Bachelor’s degree in Telecommunications, Electronics, Computer Science, or a related field. - Strong understanding of IMS architecture, VoLTE/VoWiFi, SIP protocol, and EPC/5GC core networks. - Experience with IMS testing tools (SIPp, Spirent, IXIA, DS Test, Wireshark, etc.)

- Knowledge of 3GPP standards, Diameter, RTP/RTCP, and telecom signaling. - Hands-on experience with cloud/virtualization platforms (OpenStack, Kubernetes, VMware). - Strong analytical and troubleshooting skills. s.