Internship Calculation
Become our new intern at the calculation department!
We usually respond within a week
Do you want to combine your technical knowledge with a passion for numbers and contribute to innovative projects in the greenhouse horticulture industry? Join Certhon as an intern and discover how you can make a difference as a sales engineer in high-tech cultivation solutions!
What you'll be doing:
As an intern in one of our calculation departments, you'll have the chance to actively participate in the initiation of projects. You'll support our sales engineers in creating quotes, strength calculations, and custom technical designs. Together with your team, you'll develop a detailed cost estimate and project sketch, ensuring our clients know exactly what to expect. You'll play a key role in project preparation – a challenge where you can make a direct impact!
Our sales engineers work daily with both numbers and technology to realize innovative turnkey solutions. From construction and climate technology to water and electrical engineering – you'll be part of a team with all the necessary expertise in-house. Not only will you learn the ins and outs within your specialization, but you'll also have the opportunity to discover all aspects of a turnkey project. How exciting is that?
Who are you?
- You’re studying a technical field such as civil engineering, mechanical engineering, electrical engineering, climate technology, water technology, or a similar field;
- You're looking for an internship where you can gain practical experience and conduct research;
- You can work independently, have an affinity for greenhouse horticulture, and enjoy brainstorming;
- You're eager to learn and want to contribute to our mission: "Growing anything, anywhere. For everyone!"
What we offer:
- An internship where you'll contribute to some of the most groundbreaking greenhouse and indoor farming projects worldwide!
- Involved and knowledgeable colleagues who will guide, advise, and support your research, including a professional internship supervisor;
- An informal, friendly, and ambitious work atmosphere that is felt across the company;
- During your onboarding, you’ll dive straight into practice with ‘ff tuinen’ – a chance to visit growers, suppliers, and even experience a greenhouse escape room!
- Monthly vitality activities – from paddleboarding and boxing to cooking workshops, ice bath challenges, or sleep workshops. Our annual FitWeek also focuses on sports and health.
Grow as one.
Help build the future of food production

At Certhon, we combine technology, innovation, and a strong passion to shape the future of food production: 'Growing anything, anywhere. For everyone.' Together with our team of over 150 colleagues, we develop solutions that deliver fresh, locally grown products anywhere in the world. From state-of-the-art indoor farms and high-tech greenhouses in unexpected locations to fully autonomous harvesting robots, our high-tech innovations address today’s and tomorrow’s challenges. Through creativity and technology, we make food production smarter, more sustainable, and more efficient. Do you want to work on groundbreaking projects that make an impact? Join Certhon and grow with us in a world full of possibilities!
Got Excited?
Are you looking for an internship at an innovative company in greenhouse horticulture? And would you like to gain practical experience as a sales engineer? Apply now and let us know which department (construction, climate, water or electricity) interests you the most!
If you have any questions about this internship, feel free to contact Melissa Zuijderwijk via 0174 225 080 or send a WhatsApp to +31 6 10 66 07 49.
- Department
- Sales Engineering
- Role
- Intern Sales Engineer
- Locations
- Poeldijk
- Employment type
- Internship

About Certhon
Growing anything, anywhere. For everyone. That’s the plan. New possibilities, better results, and higher yields. Because when you combine smart technology and plant science with the drive to tackle the most complex challenges, you harvest results.
At Certhon, we develop and provide turnkey, tailor-made concepts for the most high-tech horticultural projects worldwide. Founded in 1896 as a family business, we are now a partner of DENSO, a leading mobility solutions provider.
Internship Calculation
Become our new intern at the calculation department!
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