You will be a technical expert in IMS Core technologies with an analytical approach to troubleshooting, RCA investigation and e2e testing.
Providing solution expertise and guidance for the MCX Core Test Strategy and Test Plans for all network elements and sw releases.
Define and execute Functional, Performance, Accessibility and Compatibility test plans.
Perform accurate tracking of test progress within defined project timeline objectives.
Validation of all supporting test cases, upgrade procedures, trouble-shooter guides and product documentation to facilitate consistent test execution.
Perform deep dive analytics and fault investigations of feature and performance test cases to provide resolutions within SLAs.
Perform sw upgrades and regression on VNF based Core nodes on VMware architecture.
Creation and recording of test execution progress reports and performance logs.
Lifecycle management of trouble tickets to successful resolution, ensuring all information for R&D investigation is provided and recommendations implemented.
Technical support for integration to Samsung MCX nodes providing analysis, feedback or logs to 3rd parties for their solution development or integration.
Provide continuous feedback and recommendations on training and development plans for self and other test engineers.

A comprehensive background knowledge in IMS Core network technologies, in particular IMS Voice/Video and Data features.
Extensive expertise of IMS and VoLTE architecture, interfaces and protocols, ideally with hands on knowledge of testing Voice, Video and Data services when deployed on Commercial VoLTE networks
Extensive knowledge of LTE (QCIs/5QI) testing tools: Wireshark tracing and system log analysis of SIP, RTP, RTCP, Diameter interactions, Load testing tools (IXIA, Viavi, Spirent), XCAL,XCAP,QXDM, Jira, HPQC, Logcat/Putty.
SW lifecycle testing for VNF architecture deployments on VMware
Expertise in e2e troubleshooting for LTE and TETRA networks and call flows.
In depth knowledge of 3GPP specifications and Mission Critical features.
Engineering degree or equivalent experience in Computer Science, Electronics, Telecoms or a related field.
Awareness of NIST, OWASP and UK TSR requirements and how they impact delivery and testing of secure networks
Willing to support an on-call rota as required.
Ability to work for extended periods at customer locations to support project activities.

IMS Core Engineer – 3

Key skills