Core Optimisation Manager

2 weeks ago

Johannesburg, Gauteng, South Africa HelloKindred Full time
Job Description

Anticipated Contract Length/End Date: July 1st, May 1st, 2025

Our client in the global professional services industry is seeking an experienced Core Optimisation Manager (Networks) with demonstrated competence with Mobile RAN OSS KPI optimisation, DT optimisation and management. The successful candidate should be an experienced subject matter expert with demonstrated competence with Mobile Core Networks design, optimisation and management. They must have knowledge and experience working with PS systems, voice core and IMS networks. As an expert, this person will help define how the client designs, deploys and optimises mobile core networks. This position requires a broad technical knowledge of different wireless technologies and infrastructure and leverages in-depth industry knowledge of the business environment and various technical solutions to assist the customer to improve their network cost advantage by increasing operational efficiencies within their Core network. Excellent communication and interpersonal skills are important for this position.

What you will do:

  • Define, monitor and troubleshoot PS and IMS Core Networks KPIs.
  • Optimise the agreed KPIs to achieve project targets.
  • Present project deliverables and progress to customers up to Head levels.
  • Work hand on hand with the local team to scale up their technicality level.
  • Envision new technical solutions and drive development of content and collateral, as well as develop the required alignment with the global team.
  • Define a multi-vendor/multi-technology PS and IMS Core Networks strategy for customers.
  • Solve complex problems independently amid ambiguity through requirements gathering, industry research and collaboration with existing assets.
  • Support in collaborative relationships with partners to develop, communicate and present architectures, solutions and strategies to meet the customer's needs.
Qualifications
  • Bachelor's degree in technology, preferably in Telecommunications.
  • 10+ years of overall wireless and wireline telecom industry experience as a service provider and/or equipment vendor. Huawei MME, S-GSN, GGSN, PS core. Ericsson P-Gateway and Ericsson PS core knowledge is highly required.
  • Hands-on experience on the operation, configuration and optimisation to parameter level of Huawei and/or Ericsson IMS core network components.
  • Strong understanding of voice core solutions in CS and LTE (VoLTE and CSFB). EPSFB and VoNR knowledge is an advantage.
  • Familiar with CEM and tracing tools for testing, analysing and troubleshooting purposes such as SmartCare, Astellia, Anritsu and deep knowledge on Wireshark analysis.
  • Strong experience on TCP/IP Model identifying network issues, and corelating packets from multiple interfaces.
  • Strong understanding of signalling protocols SIP, Diameter, SS7, GTP and HTTP.
  • 6+ years of experience as a Solution Architect in the telecoms/Core technology, strong knowledge of end-to-end Architecture and HLD.
  • Proven hand-on experience in designing, optimisation and management of the PS and IMS Core networks elements, interfaces and messaging.
  • Strong knowledge of LTE, 5G and other relevant wireless technology.
  • Troubleshooting E2E requirements like voice MOS, YouTube Experience and Gaming Experience.
  • Hands on optimisation experience on Open signal and Ookla platform is highly required.
  • P-CAP file analysis for E2E troubleshooting along with Core probe analysis for E2E view on performance.
  • Experience of capacity management and dimensioning of all PS and IMS core network nodes along with statistical KPIs setup and reporting.
  • Hands-on experience on the operation, configuration and optimisation parameter level of Huawei and Ericsson PS core network components.
  • Dimensioning of different interfaces like A/Abis/Ater/Gb, IuCS/IuPS/IuR, Iub and processing load.
  • Network audits and consistency cleanups to maintain network's compliance as it evolves.
  • Authority for LTE EPC and responsible for the design and technical delivery of LTE EPC/PCRF.
  • Make recommendations in all aspects of core functions and elements based on SW features and best practices for optimum performance including Voice/Data services quality and other main Voice/Data services KPIs.
  • Knowledge of UU Interface signalling interfaces.
Additional Information

Please note that only applicants selected for an interview will be contacted.

Candidates must be legally authorized to live and work in the country the position is based in, without requiring sponsorship.

We appreciate your interest in this opportunity. Please note only applicants selected for an interview will be contacted.

HelloKindred is proud to be an equal opportunity employer, committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity/expression, sexual orientation, national origin, disability, age, or veteran status.

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