Internship - Water & Wastewater Plant Optimization

“Working on improving the performance of our water reclamation and wastewater treatment plants gives me a unique opportunity to contribute directly to HEINEKEN’s sustainability and circularity goals.”

The internship

HEINEKEN is committed to becoming net zero carbon by 2030 (scope 1 & 2) and to significantly reducing water use and wastewater impacts across its global operations. To achieve this ambition, we continuously optimize our water reclamation and wastewater treatment plants. In this internship, you will help us assess, benchmark, and enhance the operational performance of our Water Reclamation Plant (including Reverse Osmosis WTP) and Wastewater Treatment Plant (WWTP), with a focus on biogas generation and utilization.

In this internship you will have the opportunity to:

• Review and map the current operational performance of the existing Water Reclamation Plant and Reverse Osmosis WTP.
• Conduct a performance gap analysis and develop an action plan to improve efficiency and reliability.
• Identify and document good practices in water recovery, wastewater treatment, and resource utilization.
• Review and analyze WWTP and Boiler Standards to develop a playbook that improves biogas generation and increases utilization in boilers or other energy applications.
• Support the implementation of key recommendations and monitor performance improvements.

During your internship, you will gain hands-on experience in industrial water and wastewater management and learn how sustainability is embedded within HEINEKEN’s production operations. You will work closely with a multidisciplinary team within Sustainable Production, combining engineering, process optimization, and environmental management.

The department

The Sustainable Production department (part of Global Production, Supply Chain) consists of a multidisciplinary team, working on different subjects of sustainability of our operations such as water and energy usage, decarbonization, wastewater management and reporting. The team is made up of professionals from different countries, expertise and academic backgrounds, all with one goal: to make our operations more sustainable.

The terms of employment

• Your starting date is 1 February 2026
• The internship is full time
• The duration of the internship is 6 months
• It is a practice-oriented internship
• You will be based at our offices at Schiphol Airport
• During your internship, you have the flexibility to work in a hybrid setup
• You will receive an internship fee of €650 gross per month based on 40 hours per week
• You will enjoy 2 vacation days per month (based on full time)
• If you do not have a student OV product, your commuting expenses will be fully reimbursed

The unique you!

We believe that everyone has unique talents and are therefore looking for you!

• A bachelor’s or master’s student in Chemical Engineering, Biotechnology, Environmental Engineering, or a related field.
• Passionate about sustainability, water efficiency, and process optimization.
• Skilled in data analysis, Excel/Power BI, and technical reporting.
• Familiar with or eager to learn about industrial water and wastewater treatment systems, including anaerobic digestion and biogas systems.

Conditions of HEINEKEN

1. You are enrolled at an educational institution for the entire duration of your internship and can provide proof of enrollment for the current academic year during your onboarding.
   1. In the case of non-EU nationality, you must be registered as an intern with a Dutch educational institution.
   2. In case of EU nationality, you may also be registered as an intern at educational institutions outside the EU.
2. You reside in the Netherlands for the entire duration of your internship. Please note that HEINEKEN does not provide housing.
3. You are in possession of a valid citizen service number (BSN).

For more information about this vacancy, please contact werkenbijheinekennederland@heineken.com.

Working at HEINEKEN

Every day we work with pride on our great products that you have certainly had in your hand at a party, during a work meeting or at home on the couch. HEINEKEN is much more than just beer. What about brands like Heineken 0.0, Apple Bandit, Amstel Radler and Birra Moretti. Your personality, knowledge and skills are the success of our organization.