Dipl.-Ing. Nikolai Sonin

- Designed and developed scalable and efficient data pipelines, ETL processes, and data integration solutions to support data ingestion, processing, and storage needs with .NET Core, NATS and Azure Blob Storage; - Optimized database performance by tuning queries, implementing indexing strategies, and monitoring and analyzing system performance metrics on PostgreSQL; - Designed and developed internal customer facing ASP.Net Core Web applications, Blazor, Bootstrap, SignalR/WebSocket, Redis and PostgreSQL;

- Implemented microservices-based backend for the client’s portal; - Wrote subsystem for ASP.NET Core interaction with MS Exchange via Exchange WebAPI for organizing patients, doctors and clinics schedules; - Designed & developed PDF bulk reports generation based on RabbitMQ, Ghostscript virtual printer, and .NET Core; - Wrote new section with client forms on the intranet portal with Angular and Bootstrap; - Realized OAuth-based authentication units for two-factors authentication with MS IdentityServer4;

Designed, implemented and deployed intranet document workflow project based on MS Sharepoint 2013 for NIDAN - beverages manufacturer, a member of Coca-Cola Group. Environment: C#, Sharepoint Client Object Model, Sharepoint Server Object Model, Silverlight, WPF, WCF, LINQ, XML, SQL Server 2008, jQuery, SVN, JSON, AJAX, OpenXML SDK, CAML, CamLEX.NET

- Developed Excel VSTO add-in application for automotive market analysis and sales prediction. - Adjusted this algorithm to an Excel Interop specific. - Developed import subsystem from legacy data files via SSIS Environment: C#, VSTO, Excel, WinForms, TPL, LINQ, WCF, WWF, WPF, XML, SQL Server 2008, SSIS, FarPoint Controls, Design Patterns, MS TFS Testing framework, MS Enterprise Library Applications Blocks