Job Summary: We are seeking a Mechanical Engineer for a recycling plant, responsible for the design, development, testing, and optimization of mechanical systems and components. Key Responsibilities: 1. Design and development of mechanical systems and components 2. Collaboration with multidisciplinary technical teams 3. Preparation of technical documentation and support for processes At **EIA21**, an industrial engineering company with over 40 years of experience providing services to the sector, we are seeking a Mechanical Engineer to join a strategic metal recycling and recovery plant in **Huelva**, with an estimated duration of **12 months.** **Responsibilities:** * Design, development, testing, and optimization of mechanical systems and components. * Development of mechanical systems and components using CAD software. * Analysis, improvement, and optimization of existing equipment, including prototype testing and validation. * Collaboration with multidisciplinary technical teams to ensure integrated solutions aligned with project requirements. * Preparation of technical documentation and support for manufacturing, commissioning, and maintenance processes. * Degree in Mechanical Engineering, Industrial Engineering, or related field. * Experience in the design and development of mechanical systems and components in an industrial environment. * Proficiency in CAD software for mechanical design. * Knowledge of analysis and improvement of existing mechanical equipment. * Ability to prepare and manage technical documentation. * Experience in Technical Office * English