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Technologist / Certification Specialist, Drinking Water Products – Rijswijk

Posted on 31 October 2026

Your contact

Laurens Verheijden

Chemicals & QHSE advisor

l.verheijden@teamaxtreno.com

Assess products that come into contact with drinking water, including plastic piping systems. Review laboratory and inspection reports and manage certification processes. Based in Rijswijk, 32–40 hours a week, with hybrid working.

The role

As a Technologist / Certification Specialist, you assess and certify products that come into contact with drinking water, particularly plastic piping systems used to transport drinking water. Using national and international assessment guidelines, you evaluate how products and materials affect drinking-water quality.

Based in Rijswijk, you work with customers, experts, inspectors and the laboratory.

What you'll do

  • Technically assess products and materials for their potential impact on drinking-water quality.
  • Review laboratory and inspection reports.
  • Issue new certificates and update existing ones, for example when products are added.
  • Review the full certification process and monitor its progress with process support.

What you bring

  • A completed technical higher professional education qualification (HBO level); chemistry, chemical technology or mechanical engineering is preferred.
  • At least two years of comparable work experience or knowledge of chemistry.
  • Knowledge of MS Office.
  • Knowledge of the composition of materials and products is an advantage.
  • Excellent spoken and written Dutch and English; German is an advantage.
  • You communicate effectively, act with integrity and balance customer interests with technical considerations.
  • You take responsibility, work accurately and follow procedures.
  • You are a confident discussion partner with strong technical subject knowledge.

Working arrangements

The role is based in Rijswijk and involves 32–40 hours a week. Hybrid working applies.

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