Finance Internship - Decathlon Marketplace

Evere

Joining the Decathlon headquarters means becoming part of a collective where a variety of talents work together to imagine, build and innovate. Everyone brings their expertise to advance the company and improve the experience of our customers and colleagues in the store. The atmosphere? Dynamic and friendly, punctuated by team spirit and sports activities between colleagues. Here, we share, learn and grow together, in an environment where each project is a new challenge to be met.

YOUR MISSION

Our Decathlon Marketplace is a fast-growing global platform operating in 19 countries worldwide. We connect sports brands, third-party sellers, and customers through a seamless digital experience, integrated into Decathlon’s e-commerce website, offering millions of products worldwide. We are looking for a Finance Intern to help us structure our financial data and ensure our fast-growing business stays on the right track.

Working closely with our Finance Controller, you play a key role in ensuring the integrity of our financial flows and optimizing our processes.

Building financial dashboards: Develop and maintain tools to monitor financial flows, turning raw data into structured reports that drive smart decisions.
Ensuring data integrity: Identify inconsistencies in financial records and propose concrete solutions to improve accuracy.
Cleaning and standardizing data: Analyze historical payment records to ensure reliability and assist in building automated validation methods.
Supporting daily operations: Assist with manual validations, reconciliations, and account reviews to support the Finance Controller.
Contributing to the closing: Participate in monthly activities to ensure financial consistency across the board.
Streamlining processes: Collaborate with the team to make our financial operations smoother and more efficient.

YOUR PROFILE

We are looking for a structured, proactive student who loves digging into data to find meaningful insights.

Currently pursuing a Master’s or final-year Bachelor’s degree in Finance, Accounting, Economics, or a related field.
Strong analytical skills with a passion for working with data. You have the ability to interpret raw data and transform it into meaningful insights.
Proficiency in Excel/Google Sheets (pivot tables, lookups, formulas) and ability to work with large datasets.
Knowledge of Power BI, Tableau, or other data visualization tools is a plus.
Strong attention to detail and commitment to data accuracy.
Interest in financial processes, payment flows, and reconciliation.
Fluent in English (French/Dutch is a plus).
Proactive mindset, problem-solving attitude, and a willingness to learn.

Your rhythm and workplace

You join us for a 6-month internship starting in April 2026.
You are based at our HQ in Brussels (Evere), working within an international and data-driven team.
This is a paid, hands-on learning experience where your work directly impacts business decisions.

Ready to play?

Do you have the analytical skills to help us grow? We’d love to meet you! Even if you don't check every box yet, reach out—we value mindset and potential.

How to apply: Send your resume and a short note about your motivation via the link above.