Open to opportunities

Konstantin Budrin

@konstantinbudrin

Message

I build reliable distributed backends, asynchronous integrations, and performance-sensitive production systems.

Spain

Message

What I'm looking for

I'm looking to own ambiguous reliability, scalability, and distributed-systems problems end to end, from architecture and implementation through rollout, incident analysis, and iterative improvement.

I've built and operated production backends, integration platforms, and performance-sensitive systems for over 11 years. At Lembitech for Nextlane, I owned .NET 8 and Azure integrations coordinating dealer systems, APIs, schemas, and asynchronous workflows across Europe.

I design resilient queue-driven systems using Azure Functions, Service Bus, Cosmos DB, idempotency, retries, correlation, eventual consistency, and explicit failure recovery. I investigate distributed incidents end to end and turn recurring failure modes into stronger diagnostics, regression protection, and reusable reliability improvements.

I've also modernized mature C#/.NET platforms at Kofax, led a small team delivering a rule-based generation product at Kontur, built payment-processing services at Net Element, and developed parallel numerical software with C++/CUDA/Python at Ural Federal University. Through BudrinLabs, I build real-time DSP and simulation software under strict latency and compute constraints.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

BudrinLabs

Jan 2025 - Present (1 year 7 months)

Build real-time DSP and simulation software under strict latency and compute constraints, using profiling and iterative simplification for constrained hardware.

DSPs Simulation Profiling C++Python

Staff Software Engineer

Lembitech

Jan 2025 - Jan 2026 (1 year)

Owned architecture and delivery of .NET 8/Azure integrations for an automotive SaaS platform, designing resilient queue-driven processing with Azure Functions, Service Bus, and Cosmos DB. Drove service-boundary decisions and improved diagnostics and reliability.

C#.NET 8+Azure Azure Functions Azure Cosmos DB RabbitMQ REST APIs Distributed Systems Reliability Engineering Observability

Senior Software Development Engineer

Kofax Montenegro

Jan 2023 - Jan 2025 (2 years)

Modernized and progressively replaced legacy C#/.NET components in an enterprise document-processing platform while preserving compatibility. Resolved production and performance failures across PostgreSQL, Linux/Docker, and third-party components.

C#.NET PostgreSQL Docker Linux Legacy Modernization Diagnostics

Lead / Senior .NET Engineer

Kontur

Jan 2022 - Jan 2023 (1 year)

Led a small engineering team to build a greenfield procedural content-generation product, designing a constraint-driven generation engine and custom Entity Framework CRUD/code generator. Oversaw architecture, release, and production support.

C#.NET Entity Framework Architecture Team Leadership Génération De Code

Software Engineer - Platform Modernization

EPAM Anywhere

Jan 2020 - Jan 2021 (1 year)

Modernized legacy C++/MFC into API-first .NET services while preserving compatibility. Built AWS delivery with Docker, GitHub Actions, and CodePipeline.

C++MFC .NET AWS Docker GitHub Actions AWS CodePipeline