Core Network Support Engineer – Packet Core at Safaricom Kenya

Job Description

Detailed Description

Reporting to the Manager – Core Network Data Support, the position holder will be responsible for but is not limited operation, maintenance, optimization, automation, transformation, implementation & support of Mobile Packet Core Network equipment and services.

Key Responsibilities

Implementation, Operation and optimization of IP network elements: routers, switches and firewalls.
Integration and optimization 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
3-5 years of 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