Salary:**30.000 € - 40.000 €** Type of contract:**Permanent** Working hours:**Full-time** Languages:**English** Experience:**1 year of experience** ACADEMIC BACKGROUND: PhD MAIN RESPONSIBILITIES: The candidate will work on classical and modern communication networks with high security requirements. Their work will focus on the design, evaluation, and implementation of secure network architectures in both classical and modern environments, including emerging technologies such as SDN, NFV, 5G/6G, and IoT. The candidate will develop high-level software and actively participate in developing advanced cryptographic solutions, secure communication protocols, and encryption key management mechanisms, with special attention to their integration into critical infrastructures and distributed environments. Additionally, the selected candidate is expected to contribute to research projects, write scientific publications and deliverables. PROFESSIONAL EXPERIENCE / KNOWLEDGE: Candidates must have experience in network protocols (IP, TCP/UDP, BGP, MPLS, etc.) as well as cybersecurity technologies such as IPsec, MACsec, TLS, or PKI. Proficiency in software-defined networking tools and environments (OpenFlow, ONOS, TeraFlow, MANO, etc.) will be especially valued, along with knowledge of post-quantum cryptography or quantum key distribution (QKD). Candidates must have advanced programming skills in Python/Cython, and intermediate knowledge of other programming languages such as C/C++ or RUST will be highly valued. Knowledge of optical networks will be considered a plus. A good command of English is essential, as well as experience in scientific publication processes. Scientific publications related to the topic of this position will be highly regarded. Proactivity, research autonomy, and the ability to work in multidisciplinary teams will be positively evaluated. CONTRACT: Permanent until project end - Science Act WORKING HOURS: Full-time SCHEDULE: Morning SALARY: Between 30.000€ and 40.000€ depending on experience