Senior Data Scientist

  • Brussel

Detail vacature

Introductie

The Data Mining Team is looking for a senior profile who will fulfill a dual mission:

 

• Accelerate strategic data initiatives through subject matter expertise, technical

leadership and coaching.

• Manage the continuous flow of ad-hoc data requests through prioritization,

structuring, consolidation and translation into reusable solutions and data products.

 

The role brings seniority, structure and technical depth to the Data Mining Team, while also

supporting operations and follow-up together with the team lead and other stakeholders.

Organisatie

• Work closely with the Data Mining Team (data scientists, analysts and, where

relevant, data engineers and platform stakeholders).

• Collaborate with the Data Platform Team and business stakeholders.

• Operate in an environment with multiple priorities where structure in intake, follow-

up and communication is essential.

Functie

1. Strategic Projects & Technical Leadership

• Take the technical lead in complex data initiatives (e.g. advanced analytics,

graph/network analytics, integrations, architectural decisions).

• Help shape the approach, solutioning and priorities of larger initiatives, with

attention to feasibility, impact and scalability.

• Safeguard and promote quality standards, including reproducibility, documentation,

methodology and, where relevant, engineering quality.

 

2. Team Uplift & Co-Creation (within the Data Mining Team)

• Coach and support data scientists and analysts through co-creation, technical reviews

and sharing best practices.

• Contribute structurally to increasing team competencies (methodology, ways of

working, quality and communication).

• Take an active role in defining team agreements, such as Definition of Done, working

methods and knowledge sharing.

 

3. Structuring & Productizing Ad-Hoc Requests

• Create visibility and structure around incoming requests through intake,

prioritization, status tracking and communication.

• Cluster ad-hoc work and transform it, where possible, into reusable and scalable

solutions (datasets, analytical methods, templates and data products).

• Apply FAIR principles from a data product perspective with a focus on quality and

reusability.

 

4. Project Management & Follow-Up (Stretch)

• Take ownership of basic project and delivery follow-up activities (scope, milestones,

dependencies and risks).

• Support the team lead in coordination and follow-up activities to bring stability to

planning and execution.

• Contribute to stakeholder alignment, expectation management, decision-making and

escalations where needed.

Functie-eisen

Must-Haves

• Master’s degree in IT.

• Strong hands-on experience as a Data Scientist and/or ML Engineer with a focus on

Python.

• Experience with data analysis and modelling (Pandas, Scikit-learn) and

building/improving machine learning models in production environments.

• Strong software engineering foundation: Git, code reviews, CI/CD pipelines and

Docker.

• Experience building APIs and reusable components (e.g. FastAPI).

• Knowledge of SQL.

• Experience with Infrastructure-as-Code and/or cloud technologies is a plus

(Terraform, AWS, GCP).

• Strong ability to structure ambiguous requests and translate them into concrete

approaches and deliverables.

• Experience coaching and mentoring colleagues and working in co-creation

environments (e.g. technical coaching, reviews, Scrum/Scrum Master activities).

• Strong communication skills, stakeholder management and expectation

management.

• Fluency in Dutch, French and English is highly preferred.

 

Nice-to-Have

• Experience with data product thinking, governance and quality principles (FAIR,

documentation, definitions and reusability).

• Experience with graph analytics, network analytics or other advanced analytics

domains.

• Experience with Databricks.

• Previous experience within a public social security or government-related

environment is considered a strong asset.

• Experience with secondary data use and fraud detection.

 

Expected Impact (3–6 Months)

• A clearer intake and prioritization process for ad-hoc requests directed to the Data

Mining Team.

• More reusable and scalable outputs instead of one-off solutions.

• Measurable improvement in team quality through coaching, reviews, and

methodological standards.

• Better predictability and progress on key data initiatives and strategic projects.

 

Together with your CV, we ask you to submit the result of the exercise below. Failure to

submit an answer, or answers that do not meet expectations, will result in the candidate not

being considered:

 

Please explain how a Random Forest works and in which situations you would prefer XGBoost or AdaBoost

compared to a Random Forest.

Inlichtingen

Ginny-Rose Lie-A-Jen +32 3 202 05 00

GA DE UITDAGING AAN

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