Summary: We are seeking a professional with technical training and proven experience in technical offices and on construction sites, specialized in air conditioning, ventilation, and renewable energy. Highlights: 1. Experience in technical offices: projects, calculations, design, cost estimation 2. A proactive, solution-oriented individual with initiative and responsibility 3. Knowledge of AutoCAD, calculation software, and applicable regulations We are looking for 2 Responsible for Installations and Construction Site Supervision, specialized in air conditioning, ventilation, and renewable energy. This profile corresponds to a professional with technical training and demonstrable experience both in technical offices—carrying out projects, calculations, design, and economic evaluation of installations—and on construction sites, including site visits and technical support, acting as the liaison between client and company. We seek a responsible, proactive, and solution-oriented individual with technical training and experience in the field of installations, and with knowledge of AutoCAD, calculation software, Microsoft Office, and current applicable regulations for projects (RITE, CTE, REBT...) * 3 years’ experience. Demonstrable on-site experience * Catalan (spoken Intermediate, written Intermediate) * Spanish (spoken Intermediate, written Intermediate) * English (spoken Intermediate, written Intermediate) * Driving license: B * Permanent employment contract * Full-time position * Other relevant information: Salary to be agreed