Senior Consultant in Data Science

About the role

Sia is seeking a Senior Consultant in Data Science to join its transformation projects for global clients. You will work on modelling, digital transformation and business‑IT analysis, applying advanced analytics to drive decision‑making.

Key responsibilities

• Develop predictive models using supervised and unsupervised learning, econometrics and forecasting techniques.
• Design and implement constraint‑optimization and simulation models for operational research.
• Process large and unstructured datasets, applying algorithmic solutions for Big Data challenges.
• Contribute to Sia’s internal service development and business‑development initiatives.
• Lead project teams and collaborate with colleagues at all levels.

Required profile

• Master’s degree in applied mathematics, IT or a related field.
• 2–6 years of consulting experience in data‑science projects.
• Strong analytical mindset, result‑oriented and able to synthesize findings.
• Excellent interpersonal and communication skills; trilingual in French, Dutch and English.
• Willingness to travel for temporary assignments abroad.

Required skills

• Machine learning
• Artificial intelligence
• Statistics
• Operational research
• Big Data processing

What we offer

• International, inclusive work environment with a focus on employee well‑being.
• Opportunities for personal development, regular follow‑up and training.
• Competitive salary, mobility budget, health insurance and performance‑related bonus.