Concrete Mix Chemist — Sustainability

You will advance HEXTRAL'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.

• 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

Competitive and market-aligned, benchmarked annually against European infrastructure peers.

10% employer contribution from day one. Employee contributions are voluntary.

28 days annual leave plus public holidays. Additional days accrue with tenure.

EUR 5,000 annual budget for courses, conferences, and professional certifications.

Full relocation support for cross-border moves, including visa assistance and housing allowance.

Paid sabbatical of up to three months available after ten years of continuous service.

HEXTRAL 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.