Intern Marketplace (all, 80-100%), 6 months

Join our team as

As a member of the Mammut Marketplace team, you will be part of driving growth for our online marketplaces businesses in Europe. You will support managing day-to-day marketplace commercial operations related to article onboarding, catalogue troubleshooting, content optimization, analytics & monitoring and supporting different marketplace trading initiatives to maximize revenue opportunities.

The ideal start date for the internship would be December 2025.

Do what you love

• Manage article onboarding on all DTC marketplaces. Ensure all mandatory assets are available in time for launch dates, manage & monitor onboarding progress, troubleshoot issues.
• Manage item data, content & IDQ (item data quality) on DTC marketplaces.
• Upload & optimize product photography and videos on product detail pages.
• Support commercial plan execution across all marketplaces incl. campaign execution support, content management, coordinating promotions etc.
• Support with various analytical tasks understanding assortment performance, business trends, proactively flagging risks and opportunities to optimize our business performance across various marketplaces.
• Monitor the marketplace platforms daily running store-checks, identifying issues or optimization opportunities and fixing issues should they arise.

Play to your strengths

• Completed or almost finished studies (Bachelor/Master) in Business / Economics or similar studies. Digital / e-commerce related studies are a plus.
• Good understanding of the online marketplace landscape and basic knowledge of key drivers impacting overall consumer shopping experience
• Strong knowledge in MS-Office (Word, Power Point, Teams etc.) - Power BI and Atlassian are a plus
• Advanced Excel and analytical skills, with ability to analyse large data sets from multiple sources to drive informed business decisions
• Experience working with marketplace or e-commerce backend platforms is a plus
• Teamplayer with a highly organized and structured way of working, natural problem solver with solution-oriented, customer centric & data driven mindset
• Fluent in English, German is desirable
• Great written and verbal communication skills and ability to collaborate in a multi-stakeholder organization.

At Mammut

• Mentorship and guidance from experienced professionals
• Networking opportunities within the company and industry
• New ideas are being heard, and a dynamic and agile work environment provides fertile ground for their implementation
• You benefit from a hybrid workspace with the possibility to work up to 50% from home
• Modern employment conditions and a good pension fund solution are self-evident
• You are perfectly equipped for your next adventure thanks to great discounts
• Your workday is well balanced thanks to the free sports program at Seon, access to the nearby climbing gym as well as the heavily frequented Barista coffee machine

Ready to take the next step?
We look forward to receiving your application.