Engineers are needed for the control and supervision of railway construction execution, including track and installations, as part of the Technical Assistance team for the railway project ACO Duplicación La Carrera\-Siero (Central Asturias). Candidates must have experience in one or more of the following specialties: * Railway electrification technician: Work on overhead contact lines. * Safety and Telecommunications systems technician: Experience in the railway sector. * Surveying technician: Surveys, layout, measurements, etc. * Risk management and commissioning technician: Risk management (Regulation 402/2013\) in the railway sector. * Technical inspectors in the railway sector. * BIM supervisor with qualifying master's degree. Desired skills and qualifications: Degree in Civil Engineering, Industrial Engineering, Technical Engineering in Public Works, Technical Industrial Engineering, or Road, Canals and Ports Engineering. Minimum of 5 years of experience, including at least 2 years in railway projects. Proficiency in engineering software. Construction PRL training. Residence in Asturias preferred.