Senior Python Data Engineer

Location: Brussels Belgium
Work Model: Hybrid
Start Date: ASAP
Contract Duration: 6 Months (Full-Time)

We are looking for an experienced Senior Python Data Engineer to join a cutting-edge data modernization initiative focused on migrating legacy ETL workloads to a modern Python-based data platform. This role is ideal for someone with strong Python data engineering expertise and hands-on experience leveraging AI-assisted development tools to deliver scalable high-quality data solutions.

Key Responsibilities

• Design develop and validate Python-based data transformation and ETL solutions.
• Review optimize and enhance AI-generated Python code.
• Build robust maintainable and high-performance data pipelines.
• Contribute to the migration of legacy ETL processes to modern Python-based architectures.
• Develop and optimize data models schema management and Parquet-based solutions.
• Support PySpark implementations for large-scale data processing.
• Improve AI-assisted development workflows and multi-agent orchestration processes.
• Enhance workflow automation validation mechanisms and human-in-the-loop review processes.
• Collaborate with data engineers architects and domain experts to ensure successful project delivery.

Required Skills

• Python
• Pandas
• Polars
• PyArrow
• Parquet
• ETL / ELT Development
• Data Engineering
• Data Quality & Validation
• Schema Management
• Testing Frameworks
• AI-Assisted Development (e.g. GitHub Copilot)
• Workflow Orchestration
• Multi-Agent Systems
• Agentic Workflows

Nice to Have

• PySpark
• Experience with legacy SAS environments.
• Knowledge of SAS DATA Steps PROC SQL SAS Macros and ETL processing patterns.

What Were Looking For

• 5 years of hands-on Python development experience.
• Strong background in data engineering and modern ETL/ELT architectures.
• Experience using AI-assisted software development tools to improve productivity and code quality.
• Knowledge of workflow orchestration automation and agent-based systems.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration abilities within cross-functional teams.