Colas, subsidiary of the Bouygues Group, designs, builds and maintains transport infrastructures in a responsible way.
As a world leader in public construction with a footprint in over 50 countries on five continents, Colas employs 64 000 people who are committed to connecting people and facilitating exchanges in today's and tomorrow's world.
Join Colas! Come and make a concrete contribution to local development in a work environment that fosters every employee to be who they are, to express themselves and to progress.
Head of Department, you will work closely with a wide range of stakeholders in a multidisciplinary environment. You will be responsible for carrying out formulation and physicochemical characterization tests of road binders, assessing their mechanical and thermal performance, and developing new testing methods for the characterization of road binders, in support of research projects and technical assistance activities.
Manufacture and chemically characterize road binders in compliance with quality and safety standards.
Evaluate their mechanical and thermal performance in the laboratory.
Develop and establish experimental testing protocols.
Take responsibility for standard laboratory equipment and ensure its maintenance. Ensure that all equipment is properly calibrated and in optimal working condition.
Communicate results through written reports and oral presentations.
Train and mentor less experienced staff.
Comply with all applicable regulatory and company-specific standards and policies relating to HSE, quality, and IT tools.
Experienced senior technician with a Bac+2 / two-year higher education degree in Chemistry, Analytical Chemistry, or Materials Science.
You have knowledge of formulation, emulsion techniques, and physicochemical characterization of materials, ideally within the road construction industry or related fields.
Analytical skills, critical thinking, adaptability, strong writing skills, and excellent interpersonal skills are key strengths for succeeding in this position.
Technical knowledge: Bitumen, Surfactants, Mineral oils and solvents, Plant-based derivatives, Latex, Resins, Polymers
Emulsions: Formulation, Emulsion techniques, Characterization of emulsions
Committed to Diversity & Inclusion, Colas strives to offer every candidate the same opportunity for recruitment, development and success within the Group.
Colas, a subsidiary of the Bouygues Group, is a major player in the construction and maintenance of transportation infrastructure and urban development.
Colas covers the entire value chain: from industrial production to service offerings, including construction work.
Thanks to its local presence in some fifty countries on five continents 🌍, Colas achieved a consolidated revenue of €15.9 billion in 2024, 59% of which is outside France.
With its 64,000 employees 👷♀️👷♂️, a network of 2,000 operating units comprising 3,500 production units, and nearly 45,000 projects per year, Colas is the trusted partner of its customers.
Colas maintains its pioneering, innovative and responsible spirit to connect people and foster the sustainable development of territories 🚀 ♻.
Colas shares the four founding values of the Bouygues Group, which form the basis of its corporate culture and the way it operates on a daily basis:
• Respect: treat others how you would like to be treated.
• Commitment: for us, commitment is about giving your heart and soul.
• Pioneering: bold innovation, not blind ambition.
• Sharing: at Bouygues, knowledge and experience are meant to be passed on.
At Colas, it’s our people who drive our company forward.
We strive to develop talent, and we give those who join the company the opportunity to reach their full potential throughout their careers.
Because, when you join Colas, we hope you’ll make a career here.
