IMS Core Engineer

Samsung Electronics

. You will be a technical expert in IMS Core technologies with an analytical approach to troubleshooting, RCA investigation and e2e testing.

Posted 5/7/2026full-timeReading • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

VMware

About the role

Key responsibilities & impact

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, troubleshooter 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.

Requirements

What you’ll need

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.
Excellent presentation and interpersonal skills with written and spoken English.
Ability to maintain high standards or work and remain adaptable to changes in a dynamic working environment.
You have an 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.

Benefits

Comp & perks

Bonus scheme linked to individual, team and company performance
Car allowance
Pension contribution
Three volunteering days each year
Holiday - 25 days plus bank holidays and an additional day off for your birthday
Access to discounts on a wide range of Samsung products
Access to a discount shopping portal
Up to 20 (pro-rata) Partner Absence days per calendar year to be used in times of need

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

IMS Core technologiesRCA investigatione2e testingFunctional testingPerformance testingAccessibility testingCompatibility testingVNF architectureSW lifecycle testinge2e troubleshooting

Soft Skills

analytical approachpresentation skillsinterpersonal skillswritten communicationspoken communicationadaptabilityhigh standards of work

Certifications

Engineering degreeComputer Science degreeElectronics degreeTelecoms degree