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Борис Богуславский

@0008576

Senior .NET + Angular Full Stack Developer at EventSource, building an AI Concierge with venue-specific RAG and catalogue search.

Ukraine

Message

At EventSource, I’m building an event and venue marketplace with an AI Concierge that answers venue-specific questions and searches the catalogue. I implemented its RAG pipeline, in-house MCP server, and streaming chat experience, with OpenTelemetry and Langfuse tracing to measure quality, token use, and cost.

Previously, at EPAM Systems, I implemented features and tests for a confidential Software & Hi-Tech client. At Sigma Software, I developed features for an automotive data validation and PDF reporting system; earlier, I worked on IP telephony and ERP products at Apriorit and Anuitex.

Experience

Work history, roles, and key accomplishments

Current

Senior .NET + Angular Full Stack Developer

Current

EventSource

Dec 2024 - Present (1 year 10 months)

Independently developing end-to-end web applications from scratch, including an AI Concierge with RAG pipeline and MCP server. Built scalable backend services with .NET Core and integrated with MariaDB.

.NET 8+C# 12 Angular 19 TypeScript RxJS MariaDB Redis Hangfire OpenAI API Model Context Protocol (MCP)Server Sent Events OpenTelemetry Langfuse xUnit Moq WireMock

Senior Software Engineer

EPAM Systems

Mar 2024 - Sep 2024 (6 months)

Worked as part of a staff augmentation team to extend a client's engineering capabilities. Responsible for core feature implementation, bug fixing, and continuous communication with the customer.

React .NET Framework Azure Cosmos DB Azure DevOps Visual Studio VSCode

Full Stack Engineer

Sigma Software

Apr 2021 - Mar 2024 (2 years 11 months)

Developed new business features and implemented precise UI designs for a low-code data validation and PDF report generation system. Ensured 100% code coverage on the backend business layer and set up e2e testing workflows.