Lead Data Scientist – €90,000 plus bonus & benefits – Barcelona, Spain

A mobile game creator and publisher, who has gathered over 300 million players and counting, is looking for a Lead Data Scientist.

The successful candidate will have a strong background in Python and SQL coding, ideally coupled with experience in statistical, mathematical modelling and machine learning. You will be leading a team of two data scientists on several projects, from acting as the technical lead for these projects to having the ability to understand the problems and issues the games and businesses want to solve. You do not need management experience and is ideal for someone looking to take that next step into a leadership position.

Key Benefits of Lead Data Scientist

  • Salary up to €90,000 plus €12,000 bonus & benefits
  • A great work-life balance/culture and is well-recognised within the gaming market
  • A wide range of data science engagements, including machine learning, statistical/mathematical modelling and predictive analytics, etc


  • Participate in “deep-dive” research projects, such as detailed product analysis, customer segmentation, lifetime value analysis etc
  • Provide data insights for product management and marketing decision making
  • Designing and implementing new data products
  • Develop an analysis strategy and perform analysis of complex scenarios and AB-tests
  • Design and implement cutting-edge algorithms, build models and analyse large datasets
  • Develops guidelines for data discovery, data cleansing, transformation and assembly of large data sets for analysis.
  • Leads some strategic projects in collaboration with Stakeholders
  • Collaborates with other related teams on Data Science and big data projects

Key skills

  • Bachelor’s degree in a relevant field required (Maths, Computer Science, Engineering, Physics etc.)
  • Strong SQL and experience coding in Python (PyData stack) or other programming languages
  • Experience in LTV prediction
  • Leadership: demonstrable experience in leading teams/projects, engaging with senior stakeholders and mentoring junior members of the team
  • Business Acumen: understands key divisional and strategic business drivers, follows important game KPIs and is familiar with key competitors
  • Demonstrable interest in Data Science, Big Data, Machine Learning and Predictive Analytics

Tech Stacks

  • Analytics: Python (pandas, scikit-learn, pymc3, statsmodels, bokeh, mpl), SQL, Jupyter notebooks
  • Big Data: AWS Redshift, Apache Spark, S3
  • ETL: python, SQL, Spark, Scala, MongoDB
  • Data viz: D3.js, re:dash, Tableau, bokeh

Please apply below or contact Demetrious Vassiliou at dvassiliou@chisquare-analytics.com or call 07506115453 for a confidential chat.

By applying to this advert you agree to your personal details being held on file in relation to this and other future relevant opportunities.

Key Words:  Machine Learning / Statistics / Python / SQL / LTV / Customer Lifetime Value / Customer Churn / A B Testing / Linear Regression / Logistic Regression / Random Forest / Gradient Boosting / Clustering / Data Science / Data Scientist

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