➤ In charge of the whole Data Harvesting System. Created unified templates, which reduced timerequired to join a new portal to the system from days to under 5 minutes.➤ Built tool for checking and updating versions of custom processors in NiFi. It makes this process quickand eliminates mistakes that happen during manual updating.➤ Built Testing & Statistic system, which lets us check all changes in mapping against real data, and besure that no unexpected errors will happen after deployment. It collects statistics and produces humanreadable output, allowing quickly examine results of our changes and make data driven decisions.

➤ Improved data harvesting processes, which is used for collecting and transforming information fromthe old portal for migration to new one.➤ Implemented a mechanism for converting data from third-party component storage (Elasticsearch) to the Intermediate Model. Participated in the creation of the Model itself.➤ Worked on the core of the new Mobility portal.➤ Participated at e2e API testing using Groovy.

➤ Prepared detailed documentation on the launching and working of main modules. This significantly accelerated onboarding newcomers into the project.➤ Developed a Warning Control Service. It allows promptly unsubscribe former employees, according to the Information Security Policy. The service was integrated with an address book, and collected and renewed information.➤ Refactored the code base and increased the testing coverage of the Situational Monitoring System as a part of a scrum-team. The system was responsible for the collection of metrics, data aggregation, data projections, failure identification, and providing these results in a user-friendly manner.

➤ Designed and built the REST API for collecting and compiling data from several databases for the Public Transport Stop Info Display System.➤ Integrated third-party APIs to deliver forecasts and news.➤ Updated both server-side logic and web-interface of the Electronic Document Management System (as a full-stack developer within a distributed team).