RAN Engineer

RAN Engineer My client , a global telecoms provider is currently looking for a number of Network Engineers with strong RAN knowledge to work on their ESN (Emergency Services Network) project The key accountabilities within the 4G/5G ESN Performance & Optimsiation domain are:
Validate 5G and 5 design via UE logs analysis and E2E tracing develop action plan for performance uplift via parameter or feature optimisation - root cause of performance degradation, either from Oss trends, UE logs, crowd source data or other data sources. Conduct feature and or parameter optimisation trials for 4G/5G/ 5G RAN vendors (Nokia and Ericsson) and assess outcomes, quantify gains and impacts to wider network services.

5G Interworking with 4G, 5G SA, NSA. Own and drive improvement in all factors impacting Performance & reporting with the goal of providing optimal Customer Experience. Exceptional understanding of network performance trends with a view of rebase lining KPIs. Identifying the root cause and define measures to improve underperforming KPIs. Analysing drive test logs and Network protocol traces for underperformance & defects in ESN PTT over SRTP.

Investigate detected and reported Systematic issues within this element of the ESN Service. Performance root cause analysis using multiple sources of data primarily from: o UE Application events/L1/L2/L3 information o Drive Test UE logs/Wireshark covering OSI L1-L7. Stakeholder management work with key SMEs to understand the root cause. Technical Expertise:
Expert knowledge of UE logs analysis Expert level hands-on experience in 5G and 5G investigations, parameter optimisations and E2E Investigations. Expert understanding of E2E 4G,5G, VoNR, SA, NSA, Slicing architectures and design. Expert understanding of Nokia and Ericsson vendor Expert in Wireshark, TEMS, Accuver, Nokia and Ericsson eNB/gNB logging systems, tracing, and analysis. In depth knowledge of Mobile networks particularly 4G/5G & Public Safety functionality over LTE/5G with particularly deep understanding of network design, performance, and optimisation.

In depth knowledge of 5G,5G, LTE & SIP signalling, PTT (push to talk), SRTP/DTLS troubleshooting & Optimisation. Good understanding of 3

GPP & ETSI specifications. Good understanding of DTLS/SRTP protocol. PREFFERRED:
Knowledge of multiple vendor products including Nokia and Ericsson. Knowledge of industry best practice methodologies for analysing, defining and documenting the link between input business requirements and output technical solutions. Understanding of project management techniques and tools.

Experience of managing relationships with suppliers and third parties, of product/feature selection and of delivering those products into a production environment.

Experience of working with LTE/5G Commercial network based Public Safety solutions.