CS Core Performance - Manager in Lagos, Nigeria

at MTN Nigeria

Information Technology
Minimum Qualification
Required Experience
7 - 10 years
Employment Type
Full Time
Male or Female
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Job Description

  • Multi - technologies - 2G, 3G, LTE etc.
  • Multi - Vendor - Huawei, Ericsson, ZTE
  • Multi Services - Data, Voice, VAS
  • Service and Technology Convergence- Voice, Data, VOIP, EPC etc.
  • MS environment
  • Multi-layer Analysis of Performance
  • Technology evolution path for GSM- 2.5G/3G (GPRS, UMTS)
  • Value Added Services and time to market
  • Manage and maintain relationships with internal stakeholders
  • Liaise with other network department (operations, Planning and implementation)
  • Carryout GSM Core Network service and capacity audits and evaluations identifying and escalating congestion and impaired points to respective Planning & Optimization units
  • Monitor Core Network performance KPIs with the aim of identifying poor performance and escalate/follow up with responsible cross functional teams to improve performance and give customers desired experience.
  • Coordinate KPI improvement recommendations to ensure timely intervention in the case of perceived degradation across Core TDM, IP & Signaling interfaces
  • Conduct capacity utilization analysis ensuring optimal allocation and utilization of deployed resources
  • Provide traffic growth trending as a guide/input to capacity forecasting and planning process
  • Analysis of SS7-ISUP & SIGTRAN information data for all interfaces and determine threshold breach that may impact optimal performance of the signaling network
  • Trigger responsible Planning units, coordinate and ensure timely network optimization including POI, Routing, traffic balancing and KPI improvement across all interconnected nodes
  • Ensure End to end Core Network Performance governance and vendor management within the Managed Service Contract
  • Perform Capacity monitoring/reporting quality indicators on own Nodes interconnection, POIs with PTOs and GSM operators
  • Analyze interconnect KPIs [ASR, ACD, NER] for A-interface, inter-MSC and POIs provide basis for optimization and interventions
  • Ensure roaming quality monitoring to help proactively reduce roaming challenges
  • IR21 roaming database audit and Roaming interconnection checks over GRX
  • Conduct post-implementation/optimization checks in conjunction with planning units to
  • Build and maintain knowledge repository of all capacity/network issues, optimization intervention and resolution details
  • Define network performance health pattern/benchmark with a view to managing distortion arising from introduction of new nodes or new technology
  • CS Core Performance Analysis
  • Interconnect Performance Analysis



  • Normal MTNN working conditions
  • May be required to work extended hours
  • International and National travel

Experience & Training 

  • 8 years’ experience which includes:
  • 5 years’ work experience in CS core planning, optimization or Performance in a GSM environment
  • 3 years’ experience in Performance/quality assurance/planning of Core CS
  • 2 years managerial/Supervisorial Experience
  • Detailed knowledge of control and Access layer technologies with ability to evaluate protocol context and terminations for all MGCP and H.248 end points
  • Expert technical knowledge of BSS/NSS protocols including SS7 MAP/ISUP, SIGTRAN, SCTP BICC,M3UA, M2UA, , BSSAP, SCCP
  • Conversant with supplementary service delivery platforms (SDP, STP, HLR, SMSC, IVR etc. and their performance criteria. Knowledge of interworking of the various network nodes and services platform
  • Ability to perform protocol analysis for CAP messages including CAP3
  • Excellent knowledge of TDM, IP/MPLS/Ethernet interfaces
  • Understanding and practicability of relevant GSMA practices dealing with Global Roaming Quality [ PRD IR-21, IR-81, IR-42].


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