Expert – IMS & NGN Core Network
Doha, Qatar
منذ 3 يوم

Ooredoo Oman Family Member :

As the Expert IMS & NGN Core Network you will be responsible of providing technical expertise in planning and dimensioning of IMS and NGN Core network and services.

Responsible to maintain capacity utilisation and align expansion, software upgrades and introduction of new network elements and functionalities with business requirement.

Core Responsibilities :

You will be responsible of Planning, dimensioning, implementation and optimisation of :


International Gateway including Soft Switch, iGWB, SBC, MGW, U2000.

International TDM and VoIP Connectivity.

Planning, design and commercial support of IMS based services :

VoBB, VoLTE, Fixed-Mobile Convergence, Voice, data and video conference

Capacity and performance / quality planning of IMS and NGN core network.

Planning for the network availability, resiliency and redundancy to eliminate single point of failures.

Acceptance tests of new equipment and functionalities.

Responsible for multi-vendor verification and interoperability testing.

Responsible to conduct all Signalling & Voice Test with International Carriers including verification of CDRs with Mediation & Billing team.

Responsible for implementation of traffic routing on IGW.

Performing study, analysis and identification of IMS and NGN network infrastructure requirements including expansion and optimisation, technology upgrade and new functionalities.

Supporting / Guiding CSI / Provisioning teams in defining / refining processes & improving provisioning interfaces with existing and new nodes consisting of subscriber database.

Implementation of IMS Core network and integration of IMS Core with other core network domains / elements (NGN, MSS, STP, IN, Billing Server etc.)

Supporting in drafting RFI & RFP documents and in finalising BoQ for new Core Network elements and evaluating offers based on technology, capacity and cost.

Responsible for preparation and exchange of core connectivity document with international carriers & national operators, verification of carrier addition Data Transcript.

Active communication with vendors on progress, activities and tasks regarding implementation of core network elements.

  • Coordinating all IMS and NGN Network performance related activities with NOC and Performance team.
  • Coordinating with IT-Mediation, IT-Billing & IT-IN team during planning and execution stages for IGW and fixed.
  • Coordinating and testing with TRA in collaboration with ICT team for new carrier and node integration
  • Coordinating and managing requirements with commercial and all technology departments regarding any aspects of IMS & Soft Switch as well as all related voice gateways, access devices, voice mail system, IP design, transmission design, announcements, etc.
  • Coordinating with other internal teams like Revenue Assurance, Wholesale, IP / MPLS, Transmission, Service Delivery, etc.
  • SS7 / SIGTRAN Network Performance Monitoring and Optimisation.
  • Making sure that all network KPIs are as per target and that the capacity of the network elements is properly engineered to cater for growing traffic.
  • Traffic report analysis in order to identify KPI deviation, capacity issues and initiate necessary actions to address those issues
  • Collection and analysis of Core Network input data, e.g. Traffic models, routing schemes and interconnect plans.
  • Supporting Performance and Operation Assurance team to properly define and collect TRA related network KPIs, produce and schedule report for TRA KPI like MOS, Call Setup Time.
  • Ensuring accurate network infrastructure support documentation is maintained
  • Preparation and distribution of separate documentation for Performance team, TRA agency.
  • Preparation of ad-hoc report for internal and external requirements.
  • Preparation of Project Technical Document (PTD) based on received Project Concept and Initiation Document (PCID).

    Supporting Section-Head on ensuring completion of the on-going projects on time.

    Driving engineering practices for development of future proof core network with a strong focus on cost efficiency and network performance.

    The Person :

    You should have a minimum of 6 years of background in IMS and NGN Core Networks on similar position, strong technical knowledge in IMS and International Gateway Architecture, Design and Optimisation, good knowledge on IMS and IGW Core Network Features, knowledge of IMS Core Network including P / I / S-

    CSCF, MGCF, IM-MGW, AGCF, SBC, MRFP, MRFC, CCF etc, good overall knowledge of Access and transport networks including LTE, FTTx, in depth expertise of signalling protocols such as SIGTRAN, ISUP, MAP, INAP, SIP, H.

    248, MGCP, Diameter etc, strong knowledge of Voice / multimedia / signalling Gateway products & solutions, excellent troubleshooting skills,fluent in written and spoken english, expertise in MS Office with university bachelor degree in Telecommunication Engineering or Electrical & Electronic Engineering or Computer Engineering.

    Skills Required :

    Excellent troubleshooting skill.

    Ability to perform network designing.

    Deep knowledge on telecom protocols and architectures.

  • Ability to analyse reports and optimise the network accordingly.
  • Planning and Organising.

    Problem solving and decision making.

    Analytical Thinking Communicating Effectively.


  • Results Orientation.
  • Note : you will be required to attach the following :

    1. Resume / cv

    2. Passport-size photograph

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