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 time, etc.
• Record, organize, and evaluate the routine laboratory results
• Understand the technical and scientific background of the laboratory results
• Participate in the reporting and presentation of experimental results
Requirements
• You pursue a bachelor's/master's degree in civil engineering, structural engineering, material sciences, environmental sciences, building chemistry, or a related field
• You have experience or want to learn routine cement and concrete testing at a laboratory scale
• You know the basics of cement and concrete European standards (EN/DIN)
• You want to dive deeper into cement chemistry and topics of sustainable supplementary cementitious materials
• You have a passion for structured work and proper documentation in digital formats
• You work independently and keep your workplace organized
• You are highly motivated in the development of sustainable construction materials
Benefits
• Fair compensation per working hours
• Flexible working hours compatible with your studies
• Opportunity for hands-on experience on R&D activities in a fast-growing construction company
• Support from experienced engineers/researchers
• Possibility of doing your bachelor’s/master's thesis in the field of sustainable cement and concrete technology
Die Zementindustrie verursacht rund 8 % der weltweiten CO₂‑Emissionen – ein Großteil entsteht direkt aus Kalkstein. Co‑reactive, eine Ausgründung der RWTH Aachen, entwickelt und skaliert ein innovatives Verfahren zur CO₂‑Mineralisierung, das CO₂ dauerhaft in festem Karbonat bindet. Gleichzeitig entsteht dabei reaktives amorphes Silica, das als leistungsfähige Komponente in Bindemittelsystemen eingesetzt werden kann.
Unser Produkt bietet einen klaren Dual Benefit: Es wirkt als CO₂‑Senke und ermöglicht zugleich die Substitution eines Teils des emissionsintensiven Zements, was sowohl den CO₂‑Fußabdruck deutlich reduziert als auch die Materialperformance steigert. So schaffen wir die Grundlage für klimafreundlichere und leistungsfähigere Baustoffe.