Do you want to gather experience and learn new skills? Join us this summer, become part of our team and help us create and develop our productions. Don’t hesitate! Take up the
challenge today and apply for a paid, holiday internship for creative, ambitious and positive people!

Who are we? Ten Square Games is the leading producer of mobile and social games in Poland. Our hits - Let’s Fish and Fishing Clash - with millions of players worldwide are beating records of popularity in the App Store and Google Play. The newest products are gaining more and more players and we still have a lot of exciting ideas in store for our players!

We are looking for:

Junior Data Scientist
Workplace: Wrocław


  • Helping in identifying opportunities for leveraging company data to drive business solutions;
  • Taking part in selecting features, building and optimizing classifiers using machine learning techniques;
  • Helping in designing models scalable to large datasets (millions of users);
  • Taking part in retrieving and preparing data from SQL databases (PostgreSQL / HP Vertica).


  • Knowledge of a variety of machine learning techniques (clustering, decision tree learning, artificial neural networks, etc.) and their real-world advantages/drawbacks;
  • Knowledge of statistical techniques and concepts (regression, properties of distributions, statistical tests and proper usage, etc.);
  • Coding skills, especially knowledge of Python / Java; BS/MS degree in Computer Science/Math or currently studying for such a degree;
  • Self-reliance, self-motivation and problem solving skills;
  • Student status.


  • Interest in games.


  • A job in our office in Wrocław, to where you can easily get from any part of the city;
  • Flexible working hours;
  • Work with people passionate for games!
  • Fair salary;
  • Company trips and gatherings (Off-road / Regattas / Field games etc.);
  • Fresh fruit in the office and pizza days! :)


Our high scores:

  • 30 million users worldwide every month.
  • 280 million game downloads.
  • One of the TOP 3 best earning companies
    listed in Polish GameDev.
  • Our brightest star – Fishing Clash – is among
    the 70 highest paid apps on Google Play.
  • 8 various gaming projects (form hobby
    to casual feminine games) under simultaneous
  • 2 game studios in Wrocław and Warsaw.
  • Consolidated revenue amounted
    to PLN 241 million last year.