VoLTE Planning & Optimization Expert
A leading telecommunication company is interviewing immediately for a VoLTE Planning and Optimization Expert with experience on IRIS / Empirix / Wireshark and detailed analysis with SIP / NAS / RRC / S1AP / GTP / Uu / MAC / L1. Experience covering SRVCC / SIP RTP / SIP BYE / QCI-1 is a massive bonus. The successful candidate must have experience on VoLTE and any experience working with UK operators / vendors such as Huawei, Nokia, Ericsson or Vodafone, EE, 3UK, O2 is essential.
This is a fantastic career opportunity with one of the world’s leading service providers on a long-term extendable contract based along the M4-corridor. You will be working with one of their key long-term customers (a tier 1 and leading and MNO in the UK).
Key Tasks & Responsibilities
– Analysis of Blocked calls, MOS and unsustainable VoLTE sessions.
– End to End VoLTE Call Analysis
– Working with core teams in multi-functional team, E2E (end to end).
– Setting traces to identify where issue lies in VoLTE E2E (end to end) chain.
– Driving resolution (problem management) with core teams in Ericsson and CNS.
– SIP issues – cause code analysis
– PDU and Metis awareness for TRs from other markets and knowledge sharing. Escalation to PDU. Follow up on known issues.
– Deliver several services of Mobile radio network design, optimization and performance management.
– Investigate Radio access network KPI performance and provide clear improvement plans, RCA initiatives.
– Troubleshoot with creativity and different approaches for severe, undefined problems in networks and propose suitable resolving solutions.
– Lead major system updates/upgrades of live networks.
– Engage cross functionally to deliver high quality performance end to end processes.
– Identify add on sales opportunities related to the delivery phases of ongoing projects in order to contribute to extended sales.
– Participate with technical knowledge in presales activities and assists to contribute to the sales efforts.
– Excellent in-depth understanding of Radio Network Optimization services for GSM, EDGE, WCDMA, LTE, voLTE.
– Strong VoLTE experience is essential
– Tracing tools such as IRIS / Empirix / Wireshark experience
– VoLTE detailed SIP / NAS / RRC / S1AP / GTP / Uu / MAC / L1 analysis
– Route Cause Analysis of vital VoLTE issues (SRVCC pre alerting, SRVCC alerting, SIP RTP Timeout, SIP BYE caused by loss of QCI-1, MME paging strategy improvement etc)