Performance analysis on route building. AB tests, simulations, seeking promising points of growth, ensuring compatibility and consistency across dozens of ongoing changes and new features. Optimisation of specialized router for food delivery couriers. Me and my colleagues made an average delivery 30+ seconds faster by means of better bicycle and pedestrian navigation across hundreds of thousands deliveries made each day.

Tested newly released auxiliary services for machine translation such as word alignment and constrained decoding. Calculated statistically significant metrics on company data which led to rejection of unpromising models.

Ad-hoc tasks in data extraction and exploration.Built a traffic simulation based on a real world data.Topic modeling research.

Developed, trained and deployed a machine translation service using OpenNMT.

Time series analysis and prediction on energy consumption hourly rates. I used statistical methods as well as classic ML and neural networks. My predictions outperformed on-site analysts' and led to better planning in buying bulk electricity.