Job Description

Nokia SDM Core Expert – Migration & Integration

Location: Malmø, Sweden (On-site)
Start: ASAP
EU passport required

Role Description

We are looking for an experienced Nokia Subscriber Data Management (SDM) Expert to support a major Core Network migration project at a Scandinavish telecom operator.

The consultant will work alongside an existing Core Network Engineer, sharing technical responsibilities and supporting the migration from the existing Core Network environment to a new Core system.

The role requires strong technical knowledge of Nokia SDM platforms, subscriber data management and Core Network migration activities.

Key Responsibilities

• Support migration of Nokia SDM functions and subscriber data to the new Core Network environment.

• Assist with migration planning, technical preparation, integration, testing and cutover activities.

• Support HLR/HSS and relevant subscriber database migration activities.

• Identify and resolve technical issues related to subscriber data, provisioning and authentication.

• Coordinate SDM dependencies and interfaces with other Core Network systems.

• Support troubleshooting and validation before, during and after migration.

• Work closely with Nokia and internal Core Network specialists.

• Share technical responsibilities with the existing SDM expert and independently handle assigned tasks.

Required Technical Experience

• Strong technical experience with Nokia Subscriber Data Management (SDM).

• Experience with Nokia HLR/HSS and subscriber database solutions.

• Knowledge of Nokia One-NDS and/or Nokia Shared Data Layer (SDL).

• Experience with Core Network migration and integration projects.

• Understanding of subscriber data provisioning, authentication and associated interfaces.

• Experience with 4G/LTE Core Network architecture.

• Strong troubleshooting and technical problem-solving skills.

• Previous experience in a telecom operator or Nokia Core Network environment.

Additional Valuable Experience

• Nokia UDM/UDR and 5G Core.

• Nokia cloud-native SDM solutions.

• Diameter, LDAP and relevant Core Network interfaces.

• Subscriber data migration, database synchronization and migration validation.

• Experience with migration from legacy to next-generation Core Network platforms.

Candidate Profile

We are looking for a technically strong Nokia SDM specialist with hands-on experience in mobile Core Network environments and migration projects.

The candidate must be capable of independently supporting technical migration activities, troubleshooting integration issues and sharing responsibilities with an existing senior Core Network Engineer.

This is a technical expert role with migration coordination responsibilities, not a project management position.