Junior Researcher - Doctoral Candidate

Telefónica, S.A. • madrid, comunidad de madrid, Spain • Posted May 26, 2026

Location madrid, comunidad de madrid
Job Type Full-time
Category Otros
Posted May 26, 2026

Junior Researcher – Doctoral Candidate

Security- and Sovereignty-Aware Spectrum Operations in Multi-Operator 5G Networks

We are seeking a junior researcher to work on security- and sovereignty-aware spectrum operations in multi-operator 5G networks as part of an international Doctoral Training Network.

SpecX ( is a prestigious Marie Skłodowska‑Curie Actions Doctoral Network (MSCA‑DN), funded under Horizon Europe, that provides a high‑level research programme and doctoral training to 15 Doctoral Candidates across leading European universities and research institutions. The network focuses on large‑scale spectrum measurements, AI‑empowered analytics, and applications in future telecommunications infrastructure, including 5G and emerging 6G systems.

This doctoral position aims to analyse how roaming security vulnerabilities and cloud sovereignty constraints affect the reliability, trustworthiness, and performance of spectrum‑dependent 5G services in m...

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