Development of new and improvement of existing microservices on on Delphi 11 и Delphi 10.4, with special attention to trustworthiness at information processing and storing. Documenting API changes.

Participating in the development of a new Linux and Windows compatible system "Sberbank Business". Using FireMonkey, FastReport, MVVM, Spring, generics, DUnit and so on technologies and approaches and following Sbergile (Agile methodology modified by Sberbank for large teams).Further was requalified to Java developer and develop several new and old microservices under OpenShift.

Development of the core for a complex multi-tier system r_Keeper 7 for HoReCa businesses. My area of responsibility contains making of a new server-server and client-server synchronization engine, and also improving, debugging, refactoring, automatization of a unit, regression and integration testing, internal documenting etc.Programm complex consists of a set of specialized multithreaded servers, with integrated RPC, HTTP/HTTPS and FTP subsystems with custom RPC and XML RPS interfaces, with local databases and replication to MS SQL, and a set of specialized client applications for management, POS terminals, kiosks, with integration with fiscal registrars, ticket printers and other peripheral devices.This system is used worldwide: UCS have customers in Germany, Vietnam, Hungary and many customers in Russia, including big ones such as Burger King Russia and KFC.

Development of the core for a three-tier integrated multi-purpose business process management system, which application modules are specialized for insurance business. The system consists of a "thick" client that is developed using Delphi 10.1 Berlin and PascalScript code stored in a DB, a "thin" browser client, a Java application server, and the database with some application code that may use MSSQL, Oracle or PostgreSQL as a DB server, according to customer preferences.Among my achievements, I would like to note that:I migrated the system from Delphi 5 to Delphi 10.1 Berlin, including migration of a subsystem to interpret the application code developed in PascalScript;I provided Kerberos support from the Delphi side to implement reliable single sign on;I ported the Oracle database to the PostgreSQL one;I finalized the module to update applied solutions, in particular, I implemented in it a mechanism to create base for an update package by comparing the current state of the database and the subsystem components with their state at the time of their previous version release;I refactored and improved big accounting report.The system is used by such clients as RosGorStrakh, InGosStrakh, Sogaz Insurance, VTB Insurance, CIV Life, Sberbank Non-State Pension Fund, RenLife, Allianz, Soglasie, Societe Generale Insurance, Tinkoff Insurance and many other insurance companies.

Participation in the project for the development and advancement of the Alfa system (a comprehensive multidisciplinary business process management system; technologies: Delphi 6 - Delphi 10 Seattle, Oracle, PostgreSQL):• Development of the system architecture.• Development of the system framework and auxiliary services (replication, audit, display of data in the form of tables, cards, hierarchical lists, Gantt charts, timelines, cross-tables, graphs, etc.; viewing stored files without installing third-party applications, visual filtering, components and protocols for accessing the database, different types of authorization, formation and control of data architecture in relational databases, data dictionary structures). Translation of the framework from Delphi 6 to Delphi XE7, overcoming the transition of Delphi to support strings in Unicode and potential 64-bit.• Analysis of system requirements, formation of technical specifications, setting tasks for performers.• Project management within the framework of task implementation (team of 2-4 people).• Incident investigation, deep tracing of system code, complex debugging.• Maintaining the integrity, completeness and conciseness of the API. Refactoring.• Integration and debugging of component libraries.• Implementation of new technologies and standards (RDF, etc.).• Automation of assembly and testing of new versions of the client part of the system; assembly, release and testing of updates of the server component.• Writing press releases on the release of new versions with an overview of changes and innovations.• Formation of a knowledge base for the development department.• Technical support and consulting of clients on issues of working in the system (periodically).• Consulting and training of company employees (including new ones).