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Process Design Engineer; senior

Job in 7000, Doetinchem, Gelderland, Netherlands
Listing for: SAUR
Full Time position
Listed on 2026-03-10
Job specializations:
  • Engineering
    Environmental Engineer, Process Engineer
Salary/Wage Range or Industry Benchmark: 60000 - 80000 EUR Yearly EUR 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Position: Process Design Engineer (senior)
Nijhuis Saur Industries   Nijhuis Saur Industries is a global leader in innovative water technologies, specializing in water treatment and water reuse systems and circular solutions for industrial water management. Besides water applications, we also focus on converting organic waste streams into renewable energy. With our advanced technologies we purify, reuse and optimally manage wastewater, with a strong focus on sustainability, environmental protection and social responsibility.
Position Summary  As a Senior Process Design Engineer you will contribute to the development of environmentally friendly water solutions. You own the design and have the freedom and responsibility to design an efficient, sustainable and winning process. In this independent role you will work in a close-knit team of 16 colleagues, to whom you can always fall back for support. Your daily tasks include the preparation of technological designs for wastewater treatment and water reuse facilities, mass balances, design notes for commercial projects, and the adaptation of new technology into design tools.

You regularly consult internally with the sales department and with our sister companies, both in the Netherlands and abroad, to realise the best water treatment solutions. You will also use your expertise to improve our technologies and design methods.
Responsibilities   Performing calculations for the design of complex wastewater and organic waste stream treatment plants, including mass balances and estimates of operational costs (Opex).
Converting client wishes into winning designs.
Converting theoretical knowledge and research results into practical, technological designs such as PFDs (Pprocess Flow Diagrams) and P&IDs (Process and Instrumentation Diagrams).
Making technical and technological calculations to support the sales department, with the aim of preparing winning quotations.
Integrating new technological developments into design tools.
Making proposals regarding the optimisation of existing technologies and/or the development of new sustainable technologies/concepts.
Carrying out technical and financial feasibility studies in the field of customer-specific applications.
Carrying out consultancy work and feasibility studies, also at customer sites.
Qualifications   WO education in the technical field, preferably in the direction of chemical or bioprocess technology, water technology or health engineering.
At least 10 years of experience in a similar position within a similar industry.
You speak and write the English language at a professional level.
You live within a radius of 40 kilometres from Doetinchem or you are willing to relocate.
Benefits   The salary for this position is between € 6.700,- and € 8.500,- gross per month for a 40-hour workweek, depending on your work experience.
Flexible working hours, start your day between 07:00 and 09:00.
A 'buddy' who will show you around in our organisation.
Extended leave, with as many as 27 vacation days and 7 advancing days.
PME pension plan and discounted health insurance.
An active staff association.
Secondary employment conditions, such as Benefits@work, choice model employment conditions and a sports card for various sports in Doetinchem, Arnhem, Nijmegen and surrounding areas.
Acquisition in response to this vacancy is not necessary. We have our own Talent Acquisition team actively looking for new colleagues. Unsolicited profiles or CVs are therefore regarded as direct applications.
#mission water

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Position Requirements
10+ Years work experience
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