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 the4G/5G ESN Performance & Optimsiation domain are:

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• 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.
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• 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.
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• 5G Interworking with 4G, 5G SA, NSA.
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• Own and drive improvement in all factors impacting Performance & reporting with the goal of providing optimal Customer Experience.
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• Exceptional understanding of network performance trends with a view of rebase lining KPIs.
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• Identifying the root cause and define measures to improve underperforming KPIs.
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• Analysing drive test logs and Network protocol traces for underperformance & defects in ESN PTT over SRTP.
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• Investigate detected and reported Systematic issues within this element of the ESN Service.
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• Performance root cause analysis using multiple sources of data primarily from: \n
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  • UE Application events/L1/L2/L3 information
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  • Drive Test UE logs/Wireshark covering OSI L1-L7.
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• Stakeholder management - work with key SMEs to understand the root cause.
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Technical Expertise:

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• Expert knowledge of UE logs analysis
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• Expert level hands-on experience in 5G and 5G+ investigations, parameter optimisations and E2E Investigations.
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• Expert understanding of E2E 4G,5G, VoNR, SA, NSA, Slicing architectures and design.
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• Expert understanding of Nokia and Ericsson vendor
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• Expert in Wireshark, TEMS, Accuver, Nokia and Ericsson eNB/gNB logging systems, tracing, and analysis.
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• 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.
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• In depth knowledge of 5G,5G+, LTE & SIP signalling, PTT (push to talk), SRTP/DTLS troubleshooting & Optimisation.
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• Good understanding of 3GPP & ETSI specifications.
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• Good understanding of DTLS/SRTP protocol.
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PREFFERRED:

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• Knowledge of multiple vendor products including Nokia and Ericsson.
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• Knowledge of industry best practice methodologies for analysing, defining and documenting the link between input business requirements and output technical solutions.
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• Understanding of project management techniques and tools.
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• Experience of managing relationships with suppliers and third parties, of product/feature selection and of delivering those products into a production environment.
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• Experience of working with LTE/5G Commercial network based Public Safety solutions.
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