Senior 5G Core Network Engineer – IMS/VoLTE Leader

March Recruitment

Reading

On-site

GBP 65,000 - 90,000

Full time

45 hours ago

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Benefits offered by this job

Holiday entitlement

Birthday leave

Pension scheme

Staff discount

Volunteering days

Subsidised staff restaurant

Onsite parking

Free shuttle bus

Job summary

March Recruitment is seeking an MCX Senior Core Engineer to provide expert support across IMS, 4G/5G Core, MCX and VoLTE, from design through operations. You will collaborate with R&D, customers and partners to deliver secure, reliable mission‑critical solutions, ensuring testing, performance and operational requirements are met.

You will lead testing, troubleshooting and integrations for MCX Core, driving tests, documentation and knowledge transfer to peers.

Qualifications

Extensive experience across 4G/5G Core, IMS, VoLTE and Mission Critical Voice, Video and Data technologies.
Strong knowledge of LTE, TETRA, 3GPP, IP networking and end-to-end troubleshooting.
Experience with Wireshark, SIP, RTP/RTCP, Diameter, IXIA, Jira and ServiceNow; VMware Core deployments.
Engineering degree or equivalent technical experience.

Responsibilities

Provide SME support for defect triage, complex fault investigations and troubleshooting across MCX Core.
Lead functional, performance and end-to-end testing, including software upgrades and regression testing on VNF/VMware Core solutions.
Manage test progress, technical reports, trouble tickets and risks, ensuring issues are resolved within agreed SLAs.
Support MCX Core integrations, providing technical analysis, logs and feedback to customers, partners and third parties.
Contribute to MCX Core Test Strategies, Test Plans, documentation and the training and development of other engineers.