Publication date: 10 Jul 2019

Data Scientist

Citi Service Center Poland


Categories: Analytics & Reporting, IT

Level of English: C1-C2

Ref. no.: 19016261

Position level: Specialist



Citi Service Center Poland is an initiative to establish a network of service centers providing services to other entities operating within the Citigroup around the world. Citi Service Center Poland employs over 3800 highly qualified staff in three locations: Warsaw, Olsztyn and Lodz.


Currently we provide services to over 90 countries in Europe, Asia, Africa, both Americas and Australia. Our employees use over 27 languages every day. Working in our organization involves working on international projects, in dynamic environment.

Data Scientist
Work place: Warszawa


The Data Scientist will be responsible for collecting, mining and analyzing banking data and solving variety of business challenges via Machine Learning methods.  Business scope of subjects includes: Money Laundering detection, enhancing clients’ experience through personalized communication and product offer and optimizing usage of marketing channels (web ads, telesales, electronic communication, Bank’s website).
The Data Scientist will be a member of the Business Analysis Team in the Decision Management Department and will be working closely with other banking units. 
Key tasks: 
  • Developing Machine Learning solutions including propensity models, clustering, Anti Money Laundering detection systems.
  • Preparation of ad-hoc analyses referring to a vast spectrum of business challenges.
  • Developing/assisting in development of data pipelines. 
  • Performing production accuracy checks and maintaining models.
  • Visualization, presentation of insights and recommendations to business partners.
  • Ensuring development and execution of data-driven strategy.


  • Preferably economics/IT higher education degree.
  • Good  written and spoken English knowledge.
  • Presentation skills.
  • Analytical skills, solid SQL and basic knowledge of Machine Learning algorithms is a must.
  • Good understanding of statistics.
  • Knowledge of Python or  R.
  • 4GL knowledge will be considered an advantage.
  • Knowledge of Hadoop family (Hive, Spark (including PySpark), Kafka, etc.) will be a strong asset.
  • Understanding of banking business. 
  • Experience in data analysis and modelling.
  • Experience in the financial industry not required but is considered an advantage.
  • Experience in data engineering not required but is considered an advantage.
What will you get in return 
  • Opportunity to work in an international environment
  • Cooperation with a high quality team in a challenging area of the financial industry with one of the world's leading companies
  • Excellent working environment
  • Attractive conditions of employment and benefits

To apply for the vacancy please click on the 'APPLY' button below.


Please be informed that we will contact selected candidates only. You are kindly requested to include the following clause in your application: “I hereby give my consent to the processing of my personal data included in my job application for the purpose of the recruitment process and after its completion for the purpose of future recruitments (pursuant to the Personal Data Protection Act as of 29 August 1997, Journal of Laws No. 133, item 883).

Citi is registered trademark of Citigroup Inc., used under license. Citigroup Inc. and its subsidiaries are also entitled to rights to certain other trademarks contained herein.
Citibank Europe PLC

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