Data Scientist

Bayesian Data Scientist | Freelance | Hybrid | Rome

I am currently working with a client in Rome who is looking for a Freelance Bayesian Data Scientist with strong expertise in Bayesian modelling and Marketing Mix Modelling to support an external consulting partner for a period of 6-12 months. This client is seeking someone to create a bridge between internal stakeholders and external consultants , ensuring alignment, quality, and innovation in modelling and analysis. A full proficiency in English is essential for this role and Italian language skills are also beneficial.

Role Details:

Job title:
Bayesian Data Scientist

Working Model:
Hybrid

Day Rate:
D.O.E

Contract Length:
6 Months Initially with extension

Key Responsibilities:

• Design and develop Bayesian statistical models to support marketing effectiveness and ROI analysis.
• Build, calibrate, and validate Marketing Mix Models (MMM) using PyMC or similar probabilistic programming frameworks.
• Translate complex statistical findings into clear, actionable business insights.
• Act as a liaison between internal data teams and an external consultancy , ensuring high-quality knowledge exchange, model validation, and project alignment.
• Provide technical leadership and guidance on Bayesian inference methodologies .
• Collaborate with marketing, finance, and executive stakeholders to understand business needs and influence strategy with data-driven insights.

Essential Skills:

• Complete proficiency in English and exceptional communication skills for client facing engagements.
• Strong experience in Bayesian modelling , inference, and uncertainty quantification.
• Proficiency with PyMC (PyMC3 or PyMC v4+), NumPy, pandas, and other Python data science tools.
• Solid experience with Marketing Mix Modelling or related econometric/time series analysis techniques.
• Ability to independently scope, develop, and validate statistical models.

If this sounds interesting to you, please apply or send your CV with a contact number to