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FreelanceFull-time Brussels, hybrid

Data Scientist – ML Engineer

A Belgian public-sector organisation

What you will do

You will participate directly in the design and development of AI and data science solutions to meet operational and tactical needs. Your responsibilities include:

  • Developing machine learning pipelines and ensuring their monitoring and maintenance
  • Deploying AI models into production, primarily in on-premise environments
  • Implementing best standards in programming and machine learning within your projects
  • Conducting technology watch to stay current with the latest developments in MLOps and machine learning
  • Designing end-to-end ML systems taking into account scalability, robustness, maintenance and hardware constraints
  • Working with large structured and unstructured datasets

What we are looking for

You hold a master's degree or doctorate in computer science, AI or equivalent, with a minimum of three years of experience in data science, MLOps and machine learning.

Technical expertise:

  • On-premise and cloud development: expertise in developing and deploying AI solutions on-premise and on cloud platforms (Azure, AWS, GCP)
  • Three or more years of industry experience in ML, MLOps and big data with a focus on large-scale deployment
  • Theoretical background and practical expertise in machine learning and deep learning
  • Strong knowledge of relational and non-relational databases (SQL and NoSQL), including PostgreSQL, MySQL, Milvus, Neo4J
  • Demonstrable experience in deploying ML models and expertise in MLOps
  • Experience with containerisation and deployment using Docker and Kubernetes, as well as orchestration tools like Kubeflow
  • Mastery of ML pipelines (Kubeflow, MLflow, SageMaker)
  • Mastery of CI/CD implementation for ML models and associated code
  • Experience with different data storage solutions (data lakes, data warehouses, object storage such as S3)

Hard skills:

  • Databases: MySQL, PostgreSQL, Neo4j, Milvus
  • AI frameworks: Hugging Face, MLflow, PyTorch, TensorFlow, scikit-learn, OpenCV, vLLM
  • Programming languages: Python (R is a plus)
  • Orchestration and containerisation: Docker, Kubernetes, Kubeflow
  • Software engineering: uv, ruff, black
  • Cloud platforms: Azure, AWS
  • Versioning (code and models): MLflow, Git, GitHub, GitLab

Soft skills:

  • Ability to bring people together: aligning diverse profiles around a common objective
  • Sense of priorities: identifying critical tasks, maintaining a long-term vision, and reorganising work in response to unexpected developments
  • Clear and spontaneous communication: transmitting the right message at the right time and level, explaining technical concepts to non-technical stakeholders
  • Problem-solving and analytical thinking: approaching problems in a structured way, identifying root causes and proposing pragmatic solutions
  • Collaboration: working constructively with all stakeholders, fostering exchanges and co-construction of solutions
  • Attention to detail: focusing on technical, functional and organisational aspects of projects, ensuring code quality, model robustness and compliance with standards
  • Rigour: systematically applying best practices and methodologies, documenting work precisely, and ensuring consistent project follow-up

An awareness of security, ethical and legal aspects is appreciated.

The setting

This is a three-month freelance assignment starting in October 2026, based in Brussels with a hybrid working arrangement.

You must have active knowledge of English and at least one of the two national languages (Dutch or French).

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