About the role
You will advance Hextal's proprietary CB-7 recycled concrete blend within the group sustainability and R&D function. Working from the Rotterdam laboratory, you will optimise mix designs for structural applications, validate performance against EN 206 standards, and collaborate with project teams to deploy low-carbon concrete across major programmes including the Brenner Tunnel and Maasvlakte III.
What we are looking for
- MSc or PhD in Materials Science, Chemistry, or Concrete Technology
- Minimum 5 years of experience in concrete mix design, testing, or cementitious materials research
- Expert knowledge of EN 206 and EN 13791 standards for concrete specification and testing
- Experience with supplementary cementitious materials, recycled aggregates, or alternative binders
- Published research in peer-reviewed journals related to sustainable concrete is an advantage
- Fluent English; Dutch language skills are an advantage
Compensation and benefits
Salary
Competitive and market-aligned, benchmarked annually against European infrastructure peers.
Pension
10% employer contribution from day one. Employee contributions are voluntary.
Holiday
28 days annual leave plus public holidays. Additional days accrue with tenure.
Professional development
EUR 5,000 annual budget for courses, conferences, and professional certifications.
Relocation
Full relocation support for cross-border moves, including visa assistance and housing allowance.
Sabbatical
Paid sabbatical of up to three months available after ten years of continuous service.
Application process
Submit CV and cover letter
Upload your CV and a brief cover letter explaining why this role interests you and what you would bring to Hextal.
Technical interview
A 60-minute conversation with the hiring manager and a technical specialist, focused on your experience and approach to engineering challenges.
Site visit
An invitation to visit one of our active project sites to meet the team, see the work in progress, and assess whether Hextal is the right fit for you.
Offer
Successful candidates receive a formal offer within five working days of the final interview.
Hextal Group N.V. is an equal opportunity employer. We welcome applications from candidates of all backgrounds, regardless of gender, ethnicity, disability, sexual orientation, or age. All hiring decisions are based on merit, qualifications, and business needs.