Marenium in Tallinn, Estonia is taking one Erasmus+ trainee for interior design and visualisation on its floating villas with an underwater bedroom. The placement lasts 3 months full time, is unpaid, and requires an Erasmus+ traineeship grant. The last day to apply is 31 December 2026.
At Youth Works Hub, we reviewed the full vacancy and listed every requirement below, and you can read about how we verify every opportunity before you apply.
Interior Design Traineeship in Tallinn at a Glance
🏢 Company: Marenium
🛋️ Role: Erasmus+ Trainee: Interior Design & Visualisation
🎓 Fields: Fashion, interior and industrial design; Architecture and town planning
📍 Location: Tallinn, Estonia (remote possible)
🤝 Funding: Unpaid, an Erasmus+ traineeship grant is a requirement
⏱️ Schedule: Full time, 40 hours per week
📆 Duration: 3 months, start date flexible
🚀 Expected start: 01 February 2027
🗣️ Language: English
⏳ Application deadline: 31 December 2026 (Brussels time)
Marenium: Floating Villas With an Underwater Bedroom
Marenium designs floating villas with an underwater bedroom for luxury resorts. The villas are built in modules and assembled on the water at the resort.
The company belongs to the Architecture & Construction sector and is based in Tallinn, Estonia. It describes its starting point as a simple conviction: the next frontier for coastal development is not beside the water, it is on it. The offer was posted by Elias Verner Riihelä, the CEO.
One Trainee Working With the Chief Design Officer
Marenium is taking one Erasmus+ trainee to work with its Chief Design Officer on the interiors of the villa and on the visual material used to present it.
Interior Concepts, Layouts and Material Palettes
The vacancy lists three areas of work:
🪑 Develop interior concepts, layouts and material palettes for the villa, including the underwater bedroom
📐 Produce interior drawings and documentation alongside the Chief Design Officer
🖼️ Create renders and visual material used in presentations, on the company website and in investor material
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Renders That Reach Investors and the Website
The visual material you create is not only for internal use. According to the vacancy, your renders and visual material are used in presentations, on the Marenium website and in investor material.
Learning to Run Design and Business Tasks With Claude and Other AI Tools
The placement includes learning to run design and business tasks with Claude and other AI tools. Marenium states: "We train you, no prior experience needed." The same point is repeated in the other requirements: no prior AI experience is needed, and the company trains you to use Claude and its own design tools.
Who Marenium Is Looking For
The vacancy lists the profile in six points:
🎓 Student or recent graduate in interior design, interior architecture or a close field
🗂️ A portfolio showing interior work
🧾 Eligibility for an Erasmus+ traineeship grant
🇪🇺 EU/EEA resident, or already holding the right to work in Estonia
💬 Comfortable working in English
🏙️ Able to work in Tallinn or remotely
A Portfolio With Interior Work Comes First
Marenium asks every applicant to send a portfolio with the application. Interior work is what the company looks at first.
Render skills are a strong plus. The vacancy names Twinmotion, Enscape, 3ds Max, Blender or similar tools.
Study Levels and Fields
The vacancy lists three accepted levels of studies:
📘 Short cycle or equivalent (EQF 5)
🎒 Bachelor (EQF 6)
🏫 Master (EQF 7)
The placement is listed under two fields: Fashion, interior and industrial design, and Architecture and town planning.
Skills and Tools Listed for the Placement
The expected skills are:
💻 Digital design
✍️ Creating sound, literacy, visual, decorative or other creative and instructive materials
📏 Using computer aided design and drawing tools
The tools named in the structured part of the vacancy are Twinmotion, Sketchup and Photoshop.
An Unpaid Placement That Requires an Erasmus+ Grant
The placement is unpaid, so the grant is a requirement. Marenium states that it requires an Erasmus+ traineeship grant (or equivalent mobility funding) covering the whole period, and applicants must be eligible for such a grant. The programme listed is Erasmus+ traineeship.
If you are not sure how this kind of funding works, our guide on how funded traineeships really work explains what a traineeship grant is and what it covers.
EU/EEA Residents and People With the Right to Work in Estonia
Applicants must be an EU/EEA resident, or already hold the right to work in Estonia. Under visa and work authorization support, the vacancy says: EU/EEA residents only. Marenium is currently only able to host candidates who do not require an additional work visa, for example EU citizens or those with existing residency.
Work in Tallinn or Remotely
The vacancy gives the location as Tallinn, Estonia (remote possible). Candidates must be able to work in Tallinn or remotely, and the benefits section lists partial remote work.
3 Months Full Time With a Flexible Start
The traineeship lasts 3 months, full time, with 40 hours per week. The start date is flexible, and the expected starting date shown in the vacancy is 01 February 2027.
Learning Agreement, Mentor and University Documentation
Marenium states that it will sign the Learning Agreement and provide a mentor, regular reviews and the documentation your university requires.
The benefits listed in the vacancy are:
📚 Learning courses and training assistance
🏡 Partial remote work
How to Apply
Send an email to Marenium with the following:
📄 Your CV
🗂️ Your portfolio, with interior work shown first
The email address is given in the Links section at the end of this post.
More Internships Like This One
You can find more placements like this one in the Internship category on Youth Works Hub.
Frequently Asked Questions
What does the Erasmus+ trainee do at Marenium?
The trainee works with the Chief Design Officer on the interiors of the floating villa and on the visual material used to present it. The work covers interior concepts, layouts and material palettes, interior drawings and documentation, and renders for presentations, the website and investor material.
Where is the traineeship based?
The traineeship is based in Tallinn, Estonia, and remote work is possible. You need to be able to work in Tallinn or remotely.
Is the traineeship paid?
No, the placement is unpaid. For that reason, an Erasmus+ traineeship grant (or equivalent mobility funding) covering the whole period is a requirement.
Who can apply?
Marenium is looking for a student or recent graduate in interior design, interior architecture or a close field. Short cycle (EQF 5), Bachelor (EQF 6) and Master (EQF 7) students are listed, and you must be eligible for an Erasmus+ traineeship grant.
Do I need to be an EU/EEA resident?
You must be an EU/EEA resident or already hold the right to work in Estonia. Marenium can currently only host candidates who do not need an additional work visa.
Do I need render skills?
Render skills are a strong plus, not a strict requirement. Twinmotion, Enscape, 3ds Max, Blender or similar tools are named, and interior work in your portfolio is what the company looks at first.
Do I need experience with AI tools?
No. Marenium trains you to run design and business tasks with Claude and other AI tools, and no prior experience is needed.
How long does the traineeship last?
It lasts 3 months, full time, at 40 hours per week. The start date is flexible, and the expected starting date in the vacancy is 01 February 2027.
Which language do I need?
You should be comfortable working in English. English is the working language listed for the placement.
Does Marenium support the Erasmus+ paperwork?
Yes. Marenium signs the Learning Agreement and provides a mentor, regular reviews and the documentation your university requires.
What should I send in my application?
Send your CV and your portfolio by email to Marenium. Interior work should be what your portfolio shows first.
When is the application deadline?
The last day to submit an application is 31 December 2026 (Brussels time).
Deadline
⏳ 31 December 2026
Links
📧 Application email (CV and portfolio): join@marenium.com
🌐 Marenium website: https://www.marenium.com/
