Freelance Data Consultant Engineer

adesso Belgium is the Belgian entity of the adesso group, a fast‑growing IT provider with a proven track record across different industries. With more than 10,000 employees across 60 locations, adesso is expanding its presence in Europe – and Belgium is a key part of that strategy.
From our base in Brussels – the capital of Europe – we are building a Data & AI practice that combines the agility of a start‑up with the backing of a solid international group.

We are looking for experienced freelance Data Engineers to join our talent pool for upcoming projects with our customers in Belgium.

Requirements

Your role; As a Freelance Data Engineer working with adesso Belgium, you help our clients design, build and operate data solutions that enable better, data‑driven decisions.; Depending on the assignment and your expertise, you may be involved in:; Data pipelines & integration; Design, build and maintain data ingestion and transformation pipelines from various sources (files, APIs, databases, SaaS systems, …).; Implement robust ETL/ELT processes using modern data engineering tools and frameworks.; Ensure data is delivered in a reliable, performant and secure way.; Data modeling & serving; Design and implement data models for analytics and reporting (e.g. data warehouses, data marts, curated datasets).; Prepare and expose data to BI and analytics tools and to data science / ML use cases.; Apply good practices for documentation, naming conventions and reusability.; Data platforms & environments; Work with modern data platforms and environments , on‑premise or in the cloud, depending on the client context.; Contribute to the design and implementation of the different layers of a data platform (ingestion, storage, processing, serving).; Help ensure that solutions are scalable, maintainable and aligned with the client’s architecture and standards.; Quality, reliability & operations; Implement data quality checks , monitoring and logging to ensure trustworthy data.; Troubleshoot and optimize pipelines and queries for performance and cost‑efficiency .; Use version control and automation practices to industrialize and secure deployments.; Collaboration with stakeholders; Work closely with data architects, BI developers, analysts, data scientists and business stakeholders to understand requirements and translate them into technical solutions.; Communicate clearly on progress, risks and technical decisions, and contribute to a constructive team dynamic.; Your profile; You don’t have to tick every box, but you recognize yourself in most of the following:; At least 3–5 years of experience as a Data Engineer or in a similar role, ideally in a consulting / project‑based environment.