Laboratory assistant for quality control tasks. Main responsibilities include collecting samples directly at civil construction sites—such as concrete, soil, or asphalt—within the Tafalla area. Subsequently, these samples will be transported to the quality control laboratory located in Marcilla for analysis. A full-time schedule is offered from Monday to Friday, covering both morning and afternoon shifts. The initial contract duration is six months, with the possibility of becoming a permanent position upon completion of this period. **Professional experience:** Less than one year **Education:** Graduate of compulsory secondary education (ESO) or equivalent.