Expeirence:Led a web application development team of 8 developers. The team successfully implemented more than 10 projects of varying complexity.Worked on planning, coordination, top-level tasks formalization for all projects. Was responsible to select base technical solutions, discuss of the requirements and deadlines with customers and other development teams.Developed the architecture and structure of web applications. Developed some application parts. During the design, the possibility of reusing individual parts and ability of the their easy maintenance and support were taken into account.Organized the development in the way when the developers were familiar enough with most of the projects and could easily join the work on any of them at any moment. Some top projects are mentioned below.Project: Portfolio management and reporting applications.Technologies: NodeJS, monorepo, Vue, Vuetify, Express.js, MS SQL, MongDB.Description: A set of web applications designed to work with financial data were designed and developed by the team. Each web application contains Frontend and Backend parts, which were designed as parts of a monorepo. The data source was an MS SQL database, stored procedures were used to interact with it. MongoDB was used to store runtime configurations.Project: Web application for occasions exploring and different visualizations of occasions on the map with H3 grid, a tool for Occasion-Based marketing.Technologies: NodeJS, Vue, PrimeVue, Carto, Mapbox, deck.gl, specialized web services.Project: Specialized charting system. Provide ability to build dynamic reports for clients of the customer. Support tens highly customizable chart types.Technologies: NodeJS, Vue, PrimeVue, amCharts, specialized web services.

Project: Realtime data processing system.Technologies: Python, Confluent-kafka-python, Flask, Redis, Typescript, Javascript, Angular, Docker.Experience:Designed and developed a multi-component data processing system that read realtime data, perform aggregation and calculation, prepare analytics reports and show the results for end users. All server components were developed with Python, frontend web application based on Angular and written on Typescript. All the parts of the system were built/instantiated/run in docker containers.Project: Data management platform, Aggregation and Features calculation subsystem.Technologies: Python, PySpark, Spark, Hive, Cloudera.Experience:Designed and developed components for daily processing of a huge amount of data on a cluster. Provide fast and fault tolerant processing and calculation of a set of more then hundred metrics that were used for data science analysis and predictions.Project: Push-messaging system, Control and Reporting UI subsystem.Technologies: Python, Flask, Jinja, Javascript, Knockout, Bootstrap.Experience:Designed and developed web application that provides control and visualization of analytics results of advertising campaigns based on push messaging technologies for mobile devices. Project: Data reporting system, Aggregation and visualization components.Technologies: Hive, Tableau.Experience:Developed HSQL transformations for data collection and aggregation, design and develop interactive Tableau reports.Project: Content management system for an advertising platform.Technologies: Python, Contentful, Postgres, Redis, Javascript, React.Experience:Designed and developed backend and frontend parts of the CMS that provides the capabilities 1) to create advertising entities with different types and upload media files for them, 2) create, run and control advertising campaigns, 3) to work with analytics results for the campaigns.

Project: Learning platform, Self-management UI and Course player sub-systems.Technologies: Python, Django, Javascript.Experience:- UI frontend & backend features development.- Media upload, video recording and screen capturing development.- Pure JavaScript SCORM player development.

Project: Course Catalog generation system.Technologies: Java, XSLT, XSL-FO.Experience:Designed and developed a Java application for automatic creation of the up-to-date Training Guide (Java, XSLT). The application is dedicated to generate files for 13 different versions of the Training Guide in 3 papers formats and 8 languages for printing in a printing bureau. The Training Guides data is retrieved from the Starlight XML repository and the SESWeb data system using web services and then transformed to Postscript and PDF files using XSLT.

Worked as Web Design & Development Team Leader.Project: Information Portal and its CMS.Technologies: ASP, server side JavaScript, MS SQL.Experience:Developed front-end and back-end parts of the Portal and CMS.Project: Intranet Information System.Technologies: ASP, server side JavaScript, MS SQL.Experience:Developed front-end and back-end parts of the System.