Data Scientist Junior - Machine Learning F/H

About WPP Media

With exceptional talent, trusted data and intelligence, and world-class partnerships – all united by our pioneering agentic marketing platform, WPP Open – we help clients navigate change, capture opportunity, and deliver transformational growth.
WPP Media is WPP's AI-driven media operating unit, bringing together media, data, and partnerships to deliver creative personalisation at scale. Connected through WPP Open and powered by Open Intelligence, clients see exactly where, how, and why their media investment is working.
Job Title: Junior Data Scientist (Bayesian Modeling & MMM)
Entry-Level

WPP is the creative transformation company. We use the power of creativity to build better futures for our people, planet, clients and communities. We are looking for a Junior Data Scientist with a strong foundation in Bayesian statistics and Marketing Mix Modeling (MMM) to join our analytics team. You will support the development of advanced models that drive data-informed decisions across marketing, customer analytics, and business strategy.
Assist in building and maintaining Marketing Mix Models (MMM) to evaluate channel effectiveness

• Perform data cleaning, feature engineering, and exploratory data analysis (EDA)
• Support model validation, testing, and performance monitoring
• Create dashboards and visualizations using tools like Tableau, Power BI, or Python libraries
• Bachelor’s or Master’s degree in Data Science, Statistics, Mathematics, Computer Science, or related field
• Strong understanding of Bayesian statistics (priors, posteriors, inference techniques)
• Proficiency in Python or R (e.g., Knowledge of SQL for data extraction and manipulation
• Understanding of statistical modeling and machine learning basics
• Experience working with time-series data
• Knowledge of cloud platforms (AWS, Azure, GCP)

Internship/project experience in marketing analytics or financial analytics
• Our passion for shaping the next era of media includes investing in our employees to help them do their best work, and we’re just as committed to employee growth as we are to responsible media investment. WPP Media employees can tap into the global WPP Media & WPP networks to pursue their passions, grow their networks, and learn at the cutting edge of marketing and advertising. We have a variety of employee resource groups and host frequent in-office events showcasing team wins, sharing thought leadership, and celebrating holidays and milestone events. Our benefits include competitive medical, group retirement plans, vision, and dental insurance, significant paid time off, preferential partner discounts, and employee mental health awareness days.
That's why we’ve adopted a hybrid approach, with teams in the office around four days a week.