Data Core Engineer_Manager
Core
Operate, troubleshoot, and optimize 4G LTE EPC and 5G Core networks to support mission-critical telecommunications services.
Role type
Senior Data Core Engineer (Telecom)
Builds
4G/5G network services and connectivity for Vodafone customers
Domain
Telecommunications / Mobile Network Operations
Required skills
4G LTE EPC and 5G Core architecture, MME/SGW/PGW/PCRF/HSS/AMF/SMF/UPF/UDM/PCF, 4G/5G signalling and call flows, Diameter/GTPv2-C/GTP-U/PFCP/SIP/SCTP/DNS/HTTP2/MAP/TCP/IP, Linux administration, Kubernetes, Python, Shell scripting, Wireshark, tcpdump, Incident/Problem/Change/Major Incident Management
Preferred skills
Automation and AI, NFV, cloud-native deployments, High Availability, Geo-Redundancy, Disaster Recovery
Technologies
MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM, PCF, Wireshark, tcpdump, Python, Shell, Ansible, Kubernetes, Linux, VMware
Responsibilities
Troubleshoot and resolve complex 4G LTE EPC and 5G Core network incidents, Investigate high-complexity technical issues escalated by first-line teams, Analyse attach failures, registration failures, bearer issues, data-session problems, roaming incidents and signalling faults, Perform packet and protocol trace analysis using Wireshark and tcpdump, Configure, integrate and optimise network software parameters, Support network functions including MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM and PCF, Develop and adapt automation and operational solutions using Python, Shell scripting, Ansible, REST APIs and CI/CD practices
Seniority
Senior, hands-on IC