Core Network Engineer

DIGI Italy , a leading multinational telecommunications company operating in five European countries , is looking for a Core Network Engineer to join its growing team.

You will contribute to the operation, maintenance, and continuous improvement of the mobile core network, supporting both customer-facing services and internal network activities to ensure service quality, reliability, and performance.

Key Responsibilities:

Ticket Management

• Troubleshoot and resolve customer issues related to voice and data services reported through Customer Care and Call Center channels.
• Perform root-cause analysis and ensure timely issue resolution in accordance with service quality standards.

Network Integration & Testing

• Execute integration and acceptance tests to validate the correct functionality of network elements before deployment into the production network.
• Collaborate with Network Engineering teams to identify, analyze, and resolve technical issues detected during testing activities.
• Perform interconnection testing with carriers and mobile operators to ensure the proper handling of voice and data traffic.

Network Monitoring & Operations

• Monitor network KPIs and performance indicators to ensure optimal network operation and service availability.
• Investigate network anomalies and implement corrective actions to maintain service quality and operational efficiency.

Device Certification

• Validate the functionality and compatibility of mobile devices, new commercial offers, and value-added services.
• Support testing activities related to terminal certification and service launches.

SIM Provisioning & Management

• Configure and manage tariff profiles and subscriber settings.
• Handle SIM lifecycle management activities, including activation, suspension, blocking/unblocking, and related operational tasks.

Technical Requirements

• Bachelor’s or Master’s degree in Telecommunications Engineering or a related field.
• Knowledge of 2G–4G Core Network architectures and elements , including HLR/HSS, VLR, MSS, SCP (OCS), and IMS.
• Basic understanding of GSM, UMTS, and LTE mobile network architectures .
• Basic knowledge of mobile network protocols, with a particular focus on Core Network technologies.
• Good proficiency in Microsoft Office applications and Windows-based environments.
• Good command of the English language, both written and spoken.
• Availability for on-call duty and occasional night-time activities when required.

Soft Skills

• Proactive mindset and willingness to take initiative.
• Strong communication and listening skills, with the ability to convey information clearly and effectively.
• Team-oriented attitude and collaborative approach.
• Strong analytical thinking and problem-solving abilities.
• Curiosity, eagerness to learn, and continuous improvement mindset.

What We Offer

• The opportunity to join a fast-growing international telecommunications group.
• Exposure to cutting-edge mobile network technologies and projects.
• A dynamic, multicultural, and collaborative working environment.
• Professional growth and development opportunities within an international organization.

RAL: 28.000€ to 35.000€

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