Working Student for Cement and Concrete Application Laboratory (m/f/d)

Co-reactive is revolutionizing the construction industry by transforming CO₂ into high-performance building materials. Our goal is to make CO₂-efficient construction possible for everyone, everywhere. Using our systems, we produce a sustainable cement substitute that binds CO₂ permanently and contributes to strength and long-term durability. We are currently scaling our production facilities to an industrial level — and we need you to help us do it! We’re a fast-growing, dynamic team of more than 12 employees, bringing together our technical center, production, and office at a single location in Erkrath, right near Düsseldorf.

Tasks

• Support the R&D team with ongoing R&D projects and quality control (QC) activities

• Prepare concrete and mortar mixtures and execute their characterization according to standardized tests (EN/DIN standard)

• Perform technical tests – compression & flexural strength, flowability, Vicat setting ti...