Core Network Engineer

Core Network Engineer

Job Title: Core Network Engineer
Contract Type: Contract
Location: England
Salary: €450 - €550 per day + plus travel expenses
Start Date: ASAP
Reference: BBBH8678
Contact Name: David Lawrence
Contact Email:
Job Published: October 19, 2021 12:15

Job Description

Core network Engineer

Our client is embarking on a fully virtualized mobile network based on innovative Open RAN technology. They require an Core Network Engineer to join the team


Knowledge in LTE/UMTS/GPRS with basic IMS knowledge.
Experience with Wireless Data Core networks,
Architecture, Protocols and Interfaces.
Experience with LTE core system interfaces and protocols such as S1-MME, S1-U, S6a, S11, S5/S8, Rx, NAS, S1-AP, RRC, GTPv2c, GTP-U, SGs-AP.
Understanding of Rel 15 and Rel 16 3GPP standards
Working Experience in VoIP/IMS Core entities (Knowledge of P/I/S-CSCF, HSS, SLF) and VoLTE.
Extensive working experience with SIP Call processing and SIP Supplementary Services.
In-depth understanding of Telecom Protocols and technologies like SIP, SDP, H.248, MGCP,
Expertise in creating test plans for system level-subsystem level and feature level testing.
Good Knowledge in TCP/UDP, IP protocols and understanding of basic OSI model.

Any experience of the following would be a plus:

Experience with 5G core system interfaces and protocols.
Work experience on RCS features as 3GPP releases like VoLTE, IPME, other RCS features

This is a remote role but there may be travel required at short notice to Western European countries. This is a 6-12 month+ role outside of IR35.
The day rate is in Euros and travel expenses will be included if required onsite