From **EIA21**, an engineering company with over 40 years of experience providing industrial services, we are seeking to hire a **Junior Mechanical Supervisor** for a project with one of our clients in **Puertollano**, with an **estimated duration of 4 months**. Responsibilities: * Review of **hydraulic circuits**. * Management and control of **technical documentation**. * **Interpretation of drawings and isometrics**. * Prior experience, even if minimal, in refineries or in similar responsibility roles is required.