Open to opportunities

Bohdan User

@bohdanuser1

Message

I build scalable .NET backend systems, enterprise APIs, and high-performance integrations.

Bulgaria

Message

What I'm looking for

I'm looking for backend-focused work on scalable, API-driven and integration-heavy systems, ideally in an international Agile environment with opportunities to improve architecture, performance, and production reliability.

At Luxoft, I build scalable backend services and enterprise APIs for automotive diagnostic and infotainment platforms used by OEM and Tier-1 clients. I take features from requirements and technical research through implementation, testing, and production delivery.

I've improved SQL Server and EF Core query performance by up to 10x, built distributed TCP, UDP, and HTTP integration layers, and resolved production stability issues. Earlier at Bloom Inc., I developed Node.js APIs and improved application performance by 40%+.

Experience

Work history, roles, and key accomplishments

Current

Senior .NET Backend Developer

Current

Luxoft

Aug 2023 - Present (3 years 1 month)

Designed and developed scalable backend services and enterprise APIs for a large-scale automotive diagnostic platform. Improved SQL Server and EF Core query performance by up to 10x through query optimization and production bottleneck analysis.

C#.NET ASP.NET Core Entity Framework Core SQL Server REST APIs Docker Linux TCP UDP HTTP Agile Scrum

.NET Backend Developer

Luxoft

Jul 2020 - Aug 2023 (3 years 1 month)

Developed backend-related and system-level components for enterprise automotive platforms with high reliability and performance requirements. Implemented integration and communication logic supporting distributed platform functionality.

C#C++SQL Integration Tools Distributed Systems Agile Scrum

Backend / Full-Stack Developer

Bloom Inc.

Aug 2018 - May 2020 (1 year 9 months)

Developed backend services and REST APIs for web-based enterprise products and integration-driven business systems. Improved application performance by 40%+ through backend optimization and SQL improvements.

NodeJS REST APIs SQL React JavaScript Agile Scrum