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# CN & Network Senior Engineer

- **Company:** 5g
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** 4G (Telecommunication), Cloud Computing, Cloud Engineering, Network Architecture, Network Functions Virtualization, Software Architecture, Virtualization Technology, Enterprise Integration
- **Published:** September 5, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ Master's Degree in Telecommunications Engineering, Electrical Engineering or a related field.
 + 3 to 5 years of relevant experience in telecommunications networks.
 + Strong knowledge of mobile-network architecture, including Core Network, RAN and auxiliary services.
 + Experience with 5G Core architecture and the implementation or integration of 3GPP Core Network functions.
 + Expert knowledge of terrestrial 3GPP standards and familiarity with 3GPP NTN evolution.
 + Experience with resource allocation, service orchestration and control-plane interfaces.
 + Experience in the development, integration and testing of 4G or 5G systems.
 + Knowledge of virtualisation, NFV, SDN and cloud platforms.
 + Knowledge of cloud-native network functions, containers and orchestration is considered an asset.
 + Knowledge of satellite communications and satellite-terrestrial network integration.
 + Experience in managing or technically coordinating technology projects.
 + Nationality of an EU Member State and willingness to undergo an EU Secret clearance process.
 + Fluency in English, both written and spoken; any other European language is considered an asset.

## Description

Hispasat, as part of the SpaceRISE consortium, is responsible for the technical implementation and ensuring the success of the IRIS² project, leveraging its extensive experience in satellite communications. This collaboration is essential to provide secure and reliable high-performance communication solutions to the European Union and its member states.
To be part of this project, we are looking for 5G CN & Network Senior Engineer. The responsibilities of the position are as follows:
Responsibilities

 + Define 5G Core Network requirements for the IRIS² multi-orbit satellite system.
 + Define the high-level hardware and software architecture of the 5G Core Network and associated network functions and interfaces.
 + Define implementation, integration and test plans for the proposed 5G Core and network subsystems.
 + Perform the technical follow-up of subcontractor activities related to design, requirements compliance, development and validation.
 + Support higher-level integration of 5G Core and network subsystems into the Ground Segment and end-to-end service architecture.
 + Support architectural trade-offs for the integration of satellite and terrestrial 5G networks, including control-plane and user-plane connectivity.
 + Support the resolution of technical anomalies during validation and operations.


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