Job Summary: We are seeking a student of Energy Engineering to optimize utility bills, analyze energy consumption, and propose savings for homeowners' associations, with opportunities for growth and permanent incorporation. Key Highlights: 1. Practical training in an expanding department with growth opportunities 2. Dynamic environment with direct mentoring and real impact on clients 3. Opportunity for permanent incorporation into innovative projects DESCRIPTION Are you studying Energy Engineering and want to apply your knowledge in a real-world project serving 50,000 homeowners' associations? We are experiencing rapid growth: bill optimization, customized savings, and future services such as photovoltaic installations and electric vehicle charging points. Your key responsibilities: * Collect and organize energy bills from multiple suppliers. * Input data into advanced Excel and analyze consumption patterns to identify savings opportunities. * Recommend optimal tariffs and pricing for homeowners' associations. * Prepare clear and visual reports to support strategic decision-making. What we’re looking for: * Bachelor’s/Master’s student in Energy Engineering, Industrial Engineering, or related field * Intermediate Excel skills (formulas, pivot tables); quick learner * Passion for energy efficiency, detail-oriented, and proactive * University internship agreement; flexible schedule. What we offer: * Practical training in an expanding department, with growth opportunities * Dynamic environment in Barcelona, with direct mentoring and real impact on clients * Opportunity for permanent incorporation into innovative projects (solar, EV...) * Paid internship If you want to apply your knowledge in a dynamic environment, take on responsibility from day one, and achieve genuine career growth within the company, this is your opportunity.