Position: BI Engineer
Category: Data Engineer
English level: upper
Years of experience: 5


3 years of experience as a Data Scientist in big product company "wp.pl" -  a group of companies operating in the media and e-commerce sector. The company's home page is in the top 100 in the world in terms of traffic and has more than 25 million unique users every month.
Some of my projects:
• Click-through rate prediction based on the article’s image using CNN. This increased article’s CTR on 9%.
• Real-time bidding floor price optimization using Reinforcement Learning. This increased RTB revenue on 5%.
• Feature Storage. Custom LSTM based autoencoder model architecture. This project made a huge impact on developing ML models based on those features: gender prediction (81%
accuracy), age prediction (55% accuracy) and many more.
• Real-time revenue dashboard using Spark, Kafka and Druid.