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Nexeo

Data Scientist

Hybrid

Brussels, Belgium

Mid level

Full Time

07-01-2026

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Skills

Communication Python Bash SQL Problem-solving PyTorch Scikit-Learn TensorFlow git Organization Marketing Analytics Data Science Mathematics

Job Specifications

Nexeo Belgium is a consulting company supporting clients in the banking, finance, insurance, and public sectors throughout their transformation projects.

We are currently looking for a Senior Data Scientist to join the Predictive Models Team within the Marketing and Communication department of a leading organization.

Mission Context

The Predictive Models Team provides responsible AI models to enable impactful and efficient campaigns by optimizing reach and relevance for customers and employees.

As a Senior Data Scientist, you will tackle various business challenges, build models to support customer journey-driven marketing campaigns, and collaborate closely with a team of motivated data scientists eager to share expertise and learn continuously.

Key Responsibilities

Capture business needs, determine feasibility, and design predictive models to identify the most relevant target groups
Build, deploy, and monitor responsible AI models, including using LLMs for text classification and summarization
Create pipelines to clean and structure web analytics data and detect customer intent
Apply best practices for AI model explainability, interpretability, and validation
Translate technical insights into actionable business recommendations for Marketing and Communication teams
Support campaign measurement, testing, and adoption of AI-driven solutions

Profile

Languages

English – Fluent
Dutch – Fluent OR French – Fluent

Education

Master’s degree or higher in a quantitative field (Statistics, Mathematics, Computer Science) or equivalent experience

Experience & Technical Skills

Mandatory

5+ years of experience in data science and predictive modeling
Expert in Python and Python data science libraries (scikit-learn, PyTorch, TensorFlow)
Expertise in customer journey modeling (e.g., next best action)
Strong knowledge of ML algorithms, statistics, and experiment design
Expertise in LLMs for text classification, summarization, and responsible AI practices
SQL, git, bash

Preferred

Incremental learning, uplift modeling
Marketing Mix Modeling and optimization under constraints
SAS, Streamlit

Soft Skills

Take ownership and drive projects end-to-end
Translate data insights into actionable business decisions
Quick learner, autonomous, analytical, and problem-solving mindset
Team player with clear and concise communication
Proactive and results-oriented

This is a high-impact opportunity to work on AI-driven predictive models within marketing and communication, collaborating with a team of experts and influencing campaign outcomes with advanced analytics.

#DataScientist #AI #PredictiveModels #MachineLearning #MarketingAnalytics #ResponsibleAI #Nexeo #HybridWork #CareerOpportunity

About the Company

Since 2002, Nexeo has been providing its customers with strategic, operational and technical support for all their digital transformation projects. Over the past 20 years, we have worked with more than 50 of the major players in the Paris banking and finance industry. With our dual IT and business expertise, we offer consulting in management, performance management, risk and compliance, as well as application engineering and technical assistance, with the aim of implementing agile, efficient transformations that create valu... Know more