Core Network Product Technical Engineer | Tangent International | Johannesburg, South Africa Recruiting Company: Tangent International Job Location: Johannesburg (Onsite) Job Type: 3‑Month Contract (Extendable) Application Method: Contact: Additional Info: Only candidates already based in South Africa will be considered due to urgent project timelines. Position Summary Tangent International is urgently seeking a Core Network Product Technical Engineer to support EPC and 5G Core delivery, troubleshooting, and commercial launch activities for a major telecom operator in Johannesburg. This role is essential for ensuring smooth deployment, stable operations, and high network performance across next‑generation core platforms. Detailed Job Description As a Core Network Product Technical Engineer, you will work across EPC and 5G Core domains, providing technical expertise in service flows, signaling, integration, and operational support. You will engage in project delivery, software deployment, configuration, and troubleshooting across core components, ensuring network readiness for commercial services. Collaboration with cross‑functional teams—including RAN, IP, VAS, and vendor counterparts—is a key part of the role to ensure high‑quality service introduction and issue resolution. You will also document procedures, support launch activities, and provide post‑launch operational assistance. Key Responsibilities Support EPC and 5GC project delivery, configuration, and commercial launch readiness Troubleshoot signaling, service flows, and session establishment across core nodes Perform O&M activities including log analysis, KPI monitoring, and performance troubleshooting Collaborate with vendors, internal engineering teams, and field resources Validate software loads, upgrades, and feature activations Support live‑network incident resolution and post‑launch stabilization Document procedures, technical findings, and operational guidelines Required Qualifications & Skills Strong knowledge of EPC/5GC architecture, service flows, and signaling Hands‑on experience in EPC/5G Core project delivery, integration, and troubleshooting Experience in mobile core O&M activities Good English communication skills—written and verbal Ability to work onsite full‑time Must already be based in South Africa Nice‑to‑Have Skills Experience working with Tier‑1 operators (MTN, Vodacom, Telkom) Familiarity with multi‑vendor core environments (Huawei, Ericsson, Nokia, ZTE) Understanding of containerized 5G core (CNF) environments Exposure to IP networking, Gi‑LAN, or signaling tools (Wireshark, DSCs, probes) Knowledge of VoLTE/IMS architectures and service flows Recruitment Pro Tip Highlight specific EPC or 5GC projects you contributed to—especially commercial launches or complex troubleshooting cases. Showing measurable impact (e.g., reduced attach failures, improved KPI stability) will immediately grab the attention of hiring managers. #J-18808-Ljbffr