Job Description

Senior 4G/5G Voice core Expert ( Nokia Core platform, IMS/SDM)

EU passport needed, No WP will be provided

About the Role

We are looking for a Senior 4G/5G Voice core Expert, with experience in Nokia IMS / SDM implementation to assist the Client in monitoring and managing the vendor during a major IMS  / SDM upgrade. This role requires strong technical expertise, project coordination skills, and experience in planning and migrating IMS and Voice Core solutions.

Responsibilities

• Monitor and manage the implementation of the IMS / SDM upgrade for the Client.

• Ensure that the project adheres to technical specifications and timelines.

• Plan and coordinate migration and deployment of new IMS features.

• Handle interconnect and SIP trunking, including integration with Microsoft solutions.

• Ensure stable operations and provide troubleshooting support during and after the upgrade.

• Collaborate with internal and external teams to optimize the solution.

Qualifications

• Experience with IMS / SDM Core technologies (preferably from an operator or vendor such as Nokia, Ericsson, or Huawei).
• Knowledge of Nokia’s IMS solutions and experience with upgrades/migrations.
• VoLTE (Voice over LTE), VoWiFi (Voice over WiFi), og 5G Voice (VoNR - Voice over New Radio).
• Strong understanding of SIP, SIP Trunking, and interconnect solutions.
• Experience with voice service migration in an operator environment.
• Experience in coordinating technical projects and working with multiple stakeholders.
• Strong analytical and problem-solving skills.

• Fluent in English (Scandinavian languages are a plus).

Preferred Background

• Experience from a telecom operator or vendor, preferably in a Voice Core/IMS role.

• Technical background in telecommunications, networking, or VoIP.

• Experience working in a DevOps/CI-CD , Kubernetes. Red Hat OpenShift setup , plus & MantaRay NM is a plus.