Role
We are looking for a motivated Supervisor Trainee for our Italy branch, located in Fiorano. This position is ideal for someone who wants to develop into a professional within industrial construction and site supervision in a hands-on work environment. As a trainee supervisor, you will work alongside experienced supervisors, learn to participate in daily planning and coordination, and help ensure that all tasks are completed safely, with high quality, and on schedule. We offer thorough onboarding, opportunities to grow into more responsible roles, and a unique introduction to the highly specialized field of refractory installations.
This trainee position commences in June 2026.
Responsibilities
As a supervisor trainee you will:
Staffing
Responsibilities and duties in the work environment
Requirements
Education
Basic technical education, such as:
Vocational qualification in construction, mechanical engineering, Bricklaying or Joinery/Carpentry
Technical skills
Supervisory competencies
Personal qualities

Calderys is a leading global provider for industries operating in high-temperature conditions. The Group specializes in thermal protection for industrial equipment with a wide range of refractory products and advanced solutions to enhance steel casting, metallurgical fluxes, and molding processes. With a presence in more than 30 countries and a strong footprint in the Americas through the brand HWI (HarbisonWalker International), Calderys’ international network of experts ensures an end-to-end offer with tailored services.
Drawing on over 150 years of experience, Calderys supports its customers in their energy transition needs. Headquartered in Paris, France, the Group counts 4,500 employees (excluding contractors), and 50 plants on five continents.
Calderys - Forged in legacy. Fueled by excellence.