Job Description

💻 Data Engineering Intern

📍 This role can be based in Brussels, Belgium

➡️ Internship | 6 months | September 2025

🌍 International team | 🏡 Hybrid working | 🧠 Learning & career growth

Build what's next with us

efficy Group is the European home for Tribe, Apsis, and efficy CRM. For years, our brands have earned trust across European markets by building systems that are sovereign, compliant, and now AI-native. Today, we're bringing that story together under one roof, as your European partner for AI-powered CRM.

We help organisations turn customer data into autonomous action, structuring systems, orchestrating workflows, and building relationships that scale with AI. Over 300,000 users across 63 countries rely on us to grow smarter, move faster, and build lasting business relationships.

We're looking for a curious and analytically minded Data Engineering Intern to join our Data & Analytics team in Brussels.

You'll work at the intersection of data engineering and analytics, focusing on the gold layer of our Medallion Architecture, turning structured data into meaningful KPIs and business-ready insights. You'll dig into existing data, optimise what's there, and collaborate directly with stakeholders across the business. By the end of your internship, you'll present your work to our C-level team. Your team can't wait to welcome you!

What's in it for you?

✔️ Hands-on experience at the gold layer of a real production data platform

✔️ Direct exposure to senior leadership, including a C-level presentation

✔️ Supervision and mentoring from the Head of Data & Analytics

✔️ Career growth opportunities and internal mobility

✔️ Modern offices in Brussels with a flexible hybrid setup

✔️ Fun team events & continuous learning

What you'll be doing

• Focus on the gold layer of the Medallion Architecture, building KPIs and business-ready data outputs

• Dig into existing data to identify issues and optimise current datasets

• Gather requirements from stakeholders across different departments

• Translate business problems into actionable data solutions

• Contribute to discussions on data architecture and pipeline development

• Present your work and findings to the C-level at the end of the internship

Who you are

• Currently studying Maths, Physics, Statistics, Data Engineering, Data Management, or a related quantitative field

• Comfortable with Python, PySpark, and Databricks, or genuinely motivated to get there fast

• Strong analytical skills with the ability to translate business needs into data solutions

• A natural communicator who can hold your own in stakeholder conversations

• Proactive, curious, and not afraid to dig into messy data

• Able to provide a university internship agreement

• Fluent in English

• Available for a 6-month internship starting September 2026, with at least 2 days per week on-site in Brussels

✨ Ready to succeed and make an impact with us? Apply today, we can't wait to meet you! Please submit your application in English.

efficy Group is a people-first employer, committed to providing equal opportunities for all candidates. We take pride in the diversity of our team and welcome you exactly as you are. This includes your gender identity, sexual orientation, religion, ethnicity, age, or disability status.

Disclaimer

efficy Group does not accept unsolicited assistance from search firms for this employment opportunity. Please refrain from making phone calls or sending emails. All résumés submitted by search firms to any efficy Group employee without a valid written search agreement will be considered the sole property of efficy Group. No fees will be paid if a candidate is hired as a result of an unsolicited referral.