Skills

Tableau SQL Data Governance Data Engineering CI/CD Scrum Problem-solving Architecture power bi Azure Agile Analytics GCP Snowflake CI/CD Pipelines

Job Specifications

We're looking for an experienced Data Warehouse Engineer (freelancer) to join a leading telecommunications and digital services company in Brussels. You'll help implement an enterprise-wide data warehouse blueprint and shape a modern, scalable data platform built on Data Vault 2.0 principles.

This is a long-term freelance role within a dynamic, forward-thinking data team, driving the delivery of high-impact analytics solutions.

Logistics

Position: Freelance Data Warehouse Engineer
Duration: 12-month contract (with potential extension)
Day Rate: Competitive
Location: Brussels, Belgium (Hybrid - 2-3 days onsite)
Start Date: Mid-November 2025

Core Responsibilities

Implement prioritised business use cases based on the enterprise data warehouse blueprint.
Develop and maintain a Data Vault-based warehouse using VaultSpeed or similar tools.
Write and optimise complex SQL queries for data processing and reporting.
Ensure adherence to governance, quality, and security standards.
Collaborate with Data Engineers, Architects, and business stakeholders to bring the reference architecture to life.
Troubleshoot and resolve data ingestion and transformation issues.

Essential Skills & Experience

Proven experience as a Data Warehouse Engineer or similar.
Strong Data Vault modelling and implementation skills.
Advanced SQL proficiency (tuning, joins, window functions).
Solid understanding of ETL/ELT and data integration patterns.
Hands-on experience with Snowflake, Azure Synapse, BigQuery, or Redshift.
Strong analytical and problem-solving mindset; experience in Agile/Scrum environments.

Nice to Have

Experience with VaultSpeed or other automation tools.
Familiarity with GCP, CI/CD pipelines, and data governance frameworks.
Exposure to BI tools such as Power BI or Tableau.

Why Join?

Join a major enterprise data transformation using cutting-edge Data Vault methodologies. You'll collaborate with skilled engineers and architects to build a future-proof data ecosystem that enables smarter, data-driven decisions.

If you're passionate about data engineering and eager to make an impact, we'd love to hear from you.

About the Company

Apollo Solutions specialises in Corporate Governance and Technology recruitment within our core hubs in the UK, the EU and the US. It is what we know, and we do it well. Founded in 2008, we have over 25 driven and knowledgeable consultants partnering with businesses – from start-ups to sector-leading companies - to grow their teams with the right people, and work smarter, faster and better. We pride ourselves on building long-term partnerships with clients and candidates, using our strong industry network, expert market kno... Know more