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AGO Jobs & HR
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Key Account Marketplace Internship - Decathlon Marketplace

(m/f/x)

Reference: 1379524519 /
Online since 22 Jan 2026

Evere, BE

Industry

Interim option fixed

Day - Full-time

Job description

Role Description
Monitor partner performance and provide actionable insights on sales, delivery, conversion, and satisfaction.
Manage seller accounts via the Mirakl back office: update products, pricing, shipping rules, and content.
Build reports and dashboards in Excel or Google Sheets to track trends and opportunities.
Support projects such as in-store visibility, brand deals, EU expansion, and EPR compliance.
Collaborate with logistics, content, and commercial teams to improve partner and customer experience.
About the Company
Our client is a fast-growing digital marketplace bringing hundreds of sports brands together to reach millions of customers. They value innovation, teamwork, and learning. Working here means exposure to international projects and real data, in a collaborative and supportive environment.

Requirements

Requirements
Current student in Business, Marketing, Digital, or Data Analytics.
Fluent in French and English; Dutch is a plus.
Comfortable with Excel or Google Sheets (formulas and pivot tables).
Curious, structured, and eager to learn in a fast-paced environment.
Passionate about digital strategy and sports.

Languages

You have a good knowledge of English
You have a good knowledge of French

Offer

Offer

6-month full-time internship starting February or March 2026.

Based at HQ in Evere (Brussels) with hybrid work options.

Hands-on experience with real data and international projects.

Mentoring and learning opportunities from experienced Partner Success Managers.

Chance to develop analytical, operational, and project management skills.

Collaborative team and dynamic work environment.

Exposure to the sports industry and digital marketplace operations.
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