Implementation of different modules from scratch:A/B testing.Facebook integrations.Mailchimp integrations.Event analytics.Synthetic data generators.During this development I independently designed database scheme for this modules, proactively discussed how things should and should not work with Product Owner and CTO, implemented API and unit tests for everything above.I also participated in server-side development of Adapty SDK.During A/B test module development we invited statistics researches from HSE and I participated here as project manager.Stack: Python, Django, numpy, scikit-learn

Participated in chatbot development, that can handle clients in different situations in several languages.I have developed tool for language detection and participated in performance and inference optimization.Stack: Django, asyncio, AWS, FastText, iPavlov, TensorFlow.Participated in development of personal trainer application.As a backend developer I developed various modules with high degree of independence, I was given business-requirements that I converted to specification and then did decomposition to particular tasks.As a Data Scientist I participated in recommendation system development for fitness exercises and healthy recipes.Stack: Django, AWS, scikit-learn.Participated in support helper development for one american company.I developed text classification model for frequently asked question, packed it into fastAPI server and developed Intercom integration for this model.Stack: FastAPI, AWS, scikit-learn, pytorch, Intercom SDK.Participated in various projects for human resources company.1. I developed recommendation system for skill suggestion in company's resume builder.2. I developed system for resume parsing from pdf.3. I participated as Project Manager in image processing project (photo edit, background removal, beautification)4. I developed various data scrapping utilities with Selenium.Every project was packed into fastAPI microservice.Stack: FastAPI, AWS, scikit-learn, pytorch, Spacy, Selenium.

Architecture design of Workforce Management system.Design and development of REST-services.Design and development of push-notifications service.Design and development of company load forecasting.Design and development of automated schedule planning module.Design and development of integration layer with different systems (1c, asterix, oktel, naumen, ACS)Top-layer task detalizationRelease planningTeam managmentTech interviewCode review.Stack: Spring Framework, Spring Boot, Spring Data, Hibernate, PostgreSQL.Instruments: IntelliJ IDEA, Tomcat, Gitlab, Redmine.

I participated development of hardware-software complex for GPS/GLONASS monitoring.I had worked with Open Street Map, participated in system core development and its optimization.Also I developed algorithms of telemetry data analysis.I developed some integration modules such as:XLS integration,Yandex.Weather integration,Different GPS/GLONASS devices integration.

Software development for vending machines,I had developed software to integrate with system:Bar-code scanners,Nfc-cards (payment included).Also I developed backend and API and e-mail notification module.

Website administration,Network administration,Computers and office equipment repairing,Export ads system development.