Senior Data Scientist - Remote

Overview

ZEAL Network SE is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24. As Germany’s largest digital lottery operator and a trusted partner of Spain’s ONCE, we are passionate about shaping the future of lottery experiences.

ZEAL Iberia, S.L.U., a leading Company in the management of Lotteries through Internet, has a contract with ONCE to provide Marketing Services to manage and maximize the sales and results of the JuegosONCE website (www.juegosonce.es) as well as other digital channels (i.e. mobile, apps).

We are seeking an experienced Senior Data Scientist (f/m/d) to ONCE with a strong ability to build complex predictive models and a strategic mindset. You'll report to the Head of Data of ZEAL Iberia.

In Short

• Design, develop, and implement predictive models, including purchase models and customer behavior models.
• Data extraction and transformation using SQL, including GA4 and BigQuery.
• Analyze digital user behavior across our channels (web, app, CRM).
• Collaborate with business teams to identify opportunities for improving customer experience.
• Communicate complex findings effectively to technical and non-technical audiences.
• Design and execute A/B tests and hypothesis testing.
• Build dashboards and visualizations to monitor predictive KPIs.
• Contribute to data strategy and best practices.
• Automate analysis workflows and integrate models into production systems.

Requirements

• Minimum of 5 years of experience as a Data Scientist or similar role.
• Degree in Statistics, Mathematics, Computer Science, or a related field.
• Proficient in predictive modeling using Python, R, SQL.
• Experience with BigQuery, GA4, and data visualization tools.
• Skilled in translating complex data into clear insights.
• Strong quantitative analysis and problem-solving skills.
• Ability to work effectively with cross-functional teams.
• Excellent verbal and written communication skills in English and Spanish.

Benefits

• A modern, dynamic culture grounded in the success of a leading-edge e-commerce company.
• A talented team where your knowledge and ideas truly make an impact.
• Ongoing personal growth supported by an annual development budget of €1,500.
• Trust and autonomy with no micromanagement.
• Flexible work options with a hybrid setup.
• Unlimited vacation days plus additional days off.
• Opportunity for workations abroad.
• Remote work monthly allowance of €47.20.
• Gym benefit with a company contribution of up to €40 per month.
• Quarterly company events and regular team activities.