Core Network Support Engineer - Packet Core at Safaricom Kenya

Safaricom

  • Nairobi
  • Permanent
  • Full-time
  • 6 days ago
Key Responsibilities
  • Responsible for implementation, Operation and optimization IP network elements: routers, switches and firewalls.
  • Integration and optimisation of Evolved Packet core network elements: SGSN/MME, GGSN/PGW/SGW, PCRF, DNS, EPSN for 2G, 3G, 4G, 5G and IOT networks
  • Integration of RAN systems: BSC, RNC, eNodeB, gNodeB,etc to the core network.
  • Integration to downstream systems: Billing, HLR/HSS IP nodes: CGNAT, Firewalls, DNS, etc
  • Implementation of new technologies and services in the Packet Core network e.g NBIOT, voWiFi, VoBB, VoLTE,etc
  • Perform packet tracing and complex logs analysis for Packet Core Nodes in the 2G,3G,4G & 5G EPC domains
  • Exceptional troubleshooting skill is required to solve the customer issues before involving to the equipment vendor/manufacturers.
  • Use of automation tools for routine tasks.
  • Proactive maintenance and monitoring of key network and system to ensure adherence to KPI agreements.
  • Configuration management and strict adherence to underlying governance structures
  • Perform BCP exercises and documentation as per BCP calendar.
  • Develop and implement predictive analysis to avert system faults/incidents.
  • Fault/incident resolution within SLA while adherence to underlying governance
  • Assist with the design process and assists in guidance with regards to practices, procedures, and techniques.
  • Works with Business Agile teams and technology teams to determine if Core Network infrastructure and applications fit specification and technical requirements.
  • Tests and evaluates systems, subsystems, and components.
  • Acts as a technical contact and liaison for outside vendors and/or customers.
  • Troubleshoots and resolves complex Core network issues affecting customer experience.
Qualifications
  • Bachelor’s Degree or Equivalent Electrical Engineering, Computer Science, Information Systems or related certification
  • Generally requires 3-5 years related experience
Hands-on knowledge in the following areas:
  • Cisco and/or Huawei routing and switching.
Knowledge of Packet Core components in 2/3/4/5G:SGSN/MME, GGSN/PGW/SGW, PCRF * Telco Cloud implementations of EPC using virtualized network functions, cloud- network functions, physical network functions.
  • Strong telecommunication callflow know-how in IP,LTE ePC, 5G, NBIOT
  • VoLTE/VoWiFi/VoBB callflow and applications.
  • Practical (testing, troubleshooting, application) knowledge of above technologies
  • Knowledge and experience in using various test, packet capture and measurement tools.
  • Knowledge and experience in using automation tools for routine tasks.
  • Hands-on knowledge of linux administration
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