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I'm a senior .NET software engineer specializing in building scalable, cloud-native systems with .NET, Azure and Angular. I design high-volume data processing pipelines for healthcare, financial markets, and identity platforms, combining secure architectures with AI-powered delivery. In leadership roles, I guide cross-functional teams, define microservice boundaries, implement secure CIAM flows, and drive cost savings through automation, data-model redesign, and observability. I enjoy mentoring, writing API specifications, and delivering AI-enabled insights.…I'm a senior .NET software engineer specializing in building scalable, cloud-native systems with .NET, Azure and Angular. I design high-volume data processing pipelines for healthcare, financial markets, and identity platforms, combining secure architectures with AI-powered delivery. In leadership roles, I guide cross-functional teams, define microservice boundaries, implement secure CIAM flows, and drive cost savings through automation, data-model redesign, and observability. I enjoy mentoring, writing API specifications, and delivering AI-enabled insights.

Kiryl Kartashou

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm a senior .NET software engineer specializing in building scalable, cloud-native systems with .NET, Azure and Angular. I design high-volume data processing pipelines for healthcare, financial markets, and identity platforms, combining secure architectures with AI-powered delivery. In leadership roles, I guide cross-functional teams, define microservice boundaries, implement secure CIAM flows, and drive cost savings through automation, data-model redesign, and observability. I enjoy mentoring, writing API specifications, and delivering AI-enabled insights.…I'm a senior .NET software engineer specializing in building scalable, cloud-native systems with .NET, Azure and Angular. I design high-volume data processing pipelines for healthcare, financial markets, and identity platforms, combining secure architectures with AI-powered delivery. In leadership roles, I guide cross-functional teams, define microservice boundaries, implement secure CIAM flows, and drive cost savings through automation, data-model redesign, and observability. I enjoy mentoring, writing API specifications, and delivering AI-enabled insights.

Available to hire

I’m a senior .NET software engineer specializing in building scalable, cloud-native systems with .NET, Azure and Angular. I design high-volume data processing pipelines for healthcare, financial markets, and identity platforms, combining secure architectures with AI-powered delivery.

In leadership roles, I guide cross-functional teams, define microservice boundaries, implement secure CIAM flows, and drive cost savings through automation, data-model redesign, and observability. I enjoy mentoring, writing API specifications, and delivering AI-enabled insights.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Russian

Fluent

Polish

Intermediate

Work Experience

Senior Software Engineer, FinTech at Microsoft

January 1, 2026 - Present

Selected for the Microsoft & London Stock Exchange Group strategic partnership; building Azure-native services for low-latency ingestion and processing of market data; designed RESTful contracts and event-driven integration to replace legacy on-prem flows; integrated AI capabilities for market data processing.

Senior Software Engineer - Cybersecurity & CIAM at Thomson Reuters

May 1, 2024 - December 1, 2025

Managed a team of 5 engineers migrating the OnePass CIAM platform to cloud-native .NET microservices; defined microservice boundaries, security models, and OAuth2/OIDC token lifecycle; integrated Entra ID (B2C) and retry/circuit-breaker patterns; designed normalized PostgreSQL and Cosmos DB schemas to support high-volume authentication workloads; built CI/CD pipelines, observability, and AI-powered anomaly detection and incident summaries.

Software Engineer - Healthcare at One Call

July 1, 2021 - May 1, 2024

Architected automation services in C# and ASP.NET Core (AWS Lambda, Azure Functions) for healthcare claims and billing; migrated core data from SQL Server to DynamoDB; redesigned data models to reduce errors and deliver $250K+/month in savings; led migration of a legacy .NET Framework app to .NET Core with AWS integration; built Angular dashboards and enforced HIPAA-aligned access controls.

Junior Software Engineer at EPAM Systems - Enterprise Software

December 1, 2019 - July 1, 2021

Developed and maintained 6 cloud-integrated internal web apps serving 60,000+ users with Angular, ASP.NET Core, EF Core, SQL Server, and DynamoDB; refactored legacy code and optimized queries; containerized services and implemented CI/CD pipelines; mentored juniors and collaborated across cross-functional teams.