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Projectmanagement internship

Posted 13 Mar 2026
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Work experience
0 to 1 years
Full-time / part-time
Full-time
Job function
Salary
€550 per month
Degree level
Required language
Dutch (Fluent)
Duration (minimum)
26 weeks

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Working with us means:

  • Collaborating in a professional team that wants to make an impact.
  • Varied work: at the office in Nieuwegein, on-site with our clients or hybrid.
  • Gaining work experience within a large, leading circular company.

What you will do:

  • Support project management, planning, and coordination of client projects.
  • Assist with sales activities, consulting, and the implementation of reusable systems.
  • Analyze data, optimize processes, and contribute to customer satisfaction.
  • Contribute ideas for practical solutions and innovations within circular systems.
  • Learn everything about project management, sales, and the implementation of reusable systems.

What you will get:

  • Internship allowance: €550 per month.
  • Flexible workplace: office, client locations, or hybrid.
  • Work experience with major clients such as McDonald's Netherlands, RAI, Vermaat, Schiphol and FC Utrecht.
  • Start date: Immediately. Internship duration: 6 months.
  • Working hours and days: Monday to Friday, 09:00–18:00. Your internship day(s) are negotiable.
  • Drinks and social gatherings in the office bar, plus access to special events and locations such as our own skybox at FC Utrecht.
  • Opportunities to grow within Cupstack and the Mangrove Group.

What we ask from you:

  • Interest in sustainability, circular systems, sales, or project management.
  • Flexible, enthusiastic, and able to work independently.
  • A proactive mindset: thinking along and taking initiative.

At Cupstack, everything revolves around simple, scalable, and successful reuse. Through technology, knowledge of legislation and regulations and practical solution. We help companies successfully implement reusable systems and ensure it truly works!
Our team is energetic, committed, and solution-oriented. The supportive ecosystem of the Mangrove Group also gives you the opportunity to collaborate with other companies, gain broad experience, and truly grow.

Logistics
Nieuwegein
Active in 1 country
13 employees
60% men - 40% women
Average age is 29 years