BI DATA ENGINEER

We are looking for a BI Data Engineer to join our international team and contribute to the creation and maintenance of the Enterprise Data Warehouses (EDW) and complex Business Intelligence Solutions (Data Lakes/ Data Lakeshouses)., * Design modern Business Intelligence (BI) architectures (e.g., data lakehouse) for cloud, on-premises, and hybrid environments, ensuring compliance with security and data residency requirements.

• Gather and analyse business requirements specifically for data pipelines, storage, and reporting solutions.
• Design and implement modern Extract, Transform, Load/Extract, Load, Transform (ETL/ELT) processes and orchestration workflows, incorporating data contracts and schema evolution management.
• Implement and manage data virtualization layers to provide unified access to heterogeneous data sources while optimizing performance and security.
• Design and implement data models (e.g., dimensional modeling) to support reporting and analytics, ensuring alignment with business requirements.
• Design and build reporting and analytics applications, creating dashboards, KPIs, and self service BI tools that deliver actionable insights to business stakeholders.
• Design and optimize the physical database schema, including indexing, partitioning, and storage strategies, to balance performance, cost, and maintainability.
• Conduct ongoing database performance analysis, tuning queries, optimizing resource utilization, and ensuring SLAs for latency and throughput are met.
• Design and implement data quality frameworks and health monitoring processes that include data observability (lineage, freshness) and defined Service Level Agreements/Service Level Objectives (SLAs/SLOs).
• Define and execute test programs for BI solutions, including data validation, regression tests, contract tests, and automated pipelines integrated into CI/CD.
• Produce and maintain technical documentation (data dictionaries, lineage, design specifications, runbooks) to support transparency, governance, and audit readiness.
• Perform deployment and configuration of BI systems and platforms, applying infrastructure-as-code, version control, and environment management practices.
• Govern the BI semantic layer (KPIs, metrics catalog, naming conventions, row-level security) to ensure consistency and trusted insights.
• Manage access controls and data security within BI platforms in alignment with GDPR and internal data protection policies.
• Optimize cost and performance of BI platforms and warehouses (partitioning, caching, clustering, query optimization, resource scaling).
• Define and enforce data lineage and stewardship practices, ensuring transparency, auditability, and compliance.
• Enable self-service BI capabilities for business users through curated datasets, certified reports, and training/support., * Microsoft Azure Data Engineer Associate.
• Amazon Certified Data Analytics Specialty.

What We Offer:

• Prestigious projects within European institutions.
• International, innovative, and multicultural environments.
• Continuous support from a team of experts in EU projects.

If you are ambitious, enthusiastic, and seeking a new professional challenge in international projects with real-world impact, this is the place for you!

• Knowledge of enterprise data warehouse design and architecture, including dimensional modelling and star/snowflake schema design.
• Knowledge of data lake and lakehouse design patterns (e.g., Delta Lake, Apache Iceberg) to support large-scale analytics.
• Excellent knowledge of relational database systems applied to data warehouse.
• Knowledge of non-relational databases (e.g., MongoDB, Cassandra, Hadoop HBase) for handling unstructured and semi-structured data.
• Excellent knowledge of SQL.
• Knowledge of BI reporting and analytics tools (e.g., Power BI, Tableau, Qlik) for enterprise dashboards and self-service analytics.
• Knowledge of ETL and ELT tools (e.g., Informatica, Talend, dbt, Azure Data Factory) to manage enterprise data pipelines.
• Knowledge of modelling tools (e.g., ERwin, SAP PowerDesigner, ArchiMate for data flows) to design logical and physical data models.
• Knowledge of OLAP technologies (e.g., SSAS, Essbase) and data mining tools (e.g., SAS Enterprise Miner, RapidMiner).
• Knowledge of near real-time data ingestion and change data capture (CDC) technologies (e.g., Kafka, Debezium, GoldenGate).
• Knowledge of cloud BI architectures (e.g., Azure Synapse, Snowflake, AWS Redshift) to enable scalable analytics.
• Knowledge of data governance and cataloguing practices (e.g., Collibra, Alation, Azure Purview) to ensure trusted data assets.
• Knowledge of data observability practices (e.g., freshness, lineage, anomaly detection) to monitor and assure pipeline quality.
• Ability to understand, speak and write English, optionally French as an additional asset.

Ayesa Digital Brussels Region, Belgium

At Ayesa Digital, we grow with you.

Every professional in our company is essential. Thanks to their talent, we continue to expand: today, we are a global team of more than 11,000 people working toward a shared mission.

Ayesa Digital is currently participating in high-impact European Union projects designed to address major European challenges and drive science and innovation. These strategic technological initiatives stand out for their international scope and strong commitment to socially oriented results.