At ASTARTEC, a building rehabilitation company based in Madrid, we are seeking a professional to join our technical department. You will be part of a diverse team, participating in the entire rehabilitation process across numerous residential community buildings. Graduate in Architecture, Technical Architecture / Quantity Surveying, Building Projects module, or equivalent. Junior or senior professionals at any stage of their career are welcome. We are looking for a professional with knowledge and experience in building rehabilitation. Your responsibilities will include preparing reports, measurements, budgets, client site visits, drawings, energy certificates, building logbooks, permits, and projects. You will work from our offices in Madrid. Flexible working hours and optional remote work are available. The position offers full-time or part-time employment, depending on the candidate’s availability. We seek a personable, energetic, and determined individual eager to learn, grow professionally, collaborate cordially with colleagues, and interact directly with clients. Selection will take place in January 2026. **Industry Type** Construction **Category** Real Estate & Construction – Architecture & Design **Level** Employee **Team Size Managed** 0 **Number of Openings** 1 **Working Hours** Mon–Thu 8–18 h, Fri 8–14 h (flexible) **Salary** Salary: €22,000–€27,000 Gross Annual – Full-time **Social Benefits** Performance-based bonus Flexible working hours Remote work Company mobile phone · Madrid, Madrid (Spain) · On-site · Salary: €22,000–€27,000 Gross Annual – Full-time · Minimum Experience Required: Not required · Contract Type: Indefinite-term, full-time. Part-time incorporation is also considered. Position Type: Full-time, Part-time, Indefinite-term Contract, Internship Contract, Training and Apprenticeship Contract Salary: €22,000.00–€27,000.00 per year Benefits: * Flexible working hours * Training program * Company mobile phone * Optional remote work Work Location: Hybrid remote work in 28031 Madrid, Madrid province