Position: Data Scientist (Senior/Middle)
Company: Valid-X
Experience required: 2y
English level: intermediate

**REQUIREMENTS**
- At least 3y experience in building predictive models
- Strong fundamentals in Linear Algebra and Statistics
- Experience using Python, Pandas, Numpy, Scikit, and the related data stack
- An ability to write understandable, clean, and functional (as Functional Programming) code that can be composed
- Familiarity with probabilistic models and Bayesian statistics
- Familiarity with deep learning and PyTorch
- Familiarity with Spark
- Experience writing unit and integration tests
- Able to reliably work independently

**RESPONSIBILITIES**
- Do fundamental research that could improve the security and fairness of the platform
- Research and communicate results in a structured manner where the results can be used by the others
- Validate and apply results using historical data
- Review downstream applications of the research


**PROJECT DESCRIPTION**
You are going to work for the advanced technology group, the largest online cash game poker site in the world. The group creates leading-edge security technology utilizing data analysis, game theory optimal algorithms, and AI to ensure game integrity.
We are building Poker simulation software that helps to uncover the best way to play the game. It is a Game-Theory-Optimal (GTO) approach that builds provably sound strategies.