09/13/2026 updated
100 % available
Solution Architect & Senior .NET Developer | Cloud | DevOps | SQL & Data Integrations |Modernization
Pogorze, Poland
Only remote
Computer Science (coursework) — (BSUIR), 1999–2003About me
I'm a solution architect and senior .NET developer with 20+ years of building production software. I'm based in Poland, I work remotely, and my hours overlap the UK working day almost entirely.
AI AgentsGitHub CopilotGitHub ActionsServerlessLLMAzure FunctionsCopilotAzure DevOpsASP.NET.NET FrameworkADO.NETASP.NET MVC FrameworkC Sharp (Programming Language)Entity FrameworkGitHub
Solution Architecture & .NET Development
Over 20 years of designing, building, and shipping production software end-to-end. Expertise in solution architecture, domain-driven design, microservices, monolith decomposition, and full SDLC ownership. Proficiency in C#, .NET 10, .NET Core, .NET Framework, ASP.NET Core, ASP.NET MVC, Minimal APIs, EF Core, Web API, and TypeScript.
Cloud & Azure Engineering
Deep hands-on experience with Microsoft Azure including Azure Functions, Azure Logic Apps, Azure Service Bus, Azure API Management, Azure Front Door, Azure Storage, Azure CDN, and AWS. Expertise in serverless architectures, microservices, Docker, Bicep, and ARM templates.
SQL & Data Integration
Deep SQL expertise with MS SQL Server as primary platform. Experience building multi-dialect SQL tooling and integrations for cloud data warehouses including Snowflake, Redshift, and Databricks. Proficiency in T-SQL, stored procedures, query performance tuning, PostgreSQL, MySQL, Oracle, Redis, Azure Cosmos DB, and database CI/CD.
DevOps & CI/CD
CI/CD experience across five platforms over twenty years: Azure DevOps (Repos, Pipelines, Boards), GitHub Actions, Jenkins, TFS, and Bamboo with NAnt/MSBuild. Expertise in Docker, database CI/CD for MS SQL, branch policies, release management, and Git hosting integrations across Azure Repos, Bitbucket, GitHub, and GitLab.
AI-Driven Development
Daily practice with Claude Code, GitHub Copilot, Cursor, Codex/ChatGPT, custom MCP servers, and agentic workflows. Hands-on LLM integration including RAG, multi-agent pipelines, AI evals, guardrails, unattended agent loops, and AI-assisted test generation.
Legacy Modernization
Migration, replatforming, and re-architecting of production .NET Framework systems while continuing feature development and support. Experience with .NET Framework all versions through 4.8, ASP.NET MVC, ASP.NET Web Forms, ADO.NET, AngularJS, jQuery, monolith-to-services, and strangler-fig patterns.
Identity & Security
Experience with Azure AD, Entra ID, OpenIddict, IdentityServer, OAuth2, OIDC, JWT, SSO, RBAC, WebAuthn passkeys, and GDPR compliance.
Quality & Shift-Left QA
End-to-end test automation with Playwright, SonarQube Quality Gates, Roslyn analyzers, .NET analyzers, ReSharper InspectCode, Qodana, Gitleaks, Dependabot, Testcontainers, and AI-assisted test generation.
Front-End / SPA Development
Front-end development with React, Vite, MUI, Angular, AngularJS, TypeScript, and JavaScript. Building SPA front-ends over .NET backends.
Leadership & Delivery
Team supervision, mentoring, estimation, planning, and full SDLC ownership. Experience with Agile, Scrum, and stakeholder communication across multi-year projects.
Over 20 years of designing, building, and shipping production software end-to-end. Expertise in solution architecture, domain-driven design, microservices, monolith decomposition, and full SDLC ownership. Proficiency in C#, .NET 10, .NET Core, .NET Framework, ASP.NET Core, ASP.NET MVC, Minimal APIs, EF Core, Web API, and TypeScript.
Cloud & Azure Engineering
Deep hands-on experience with Microsoft Azure including Azure Functions, Azure Logic Apps, Azure Service Bus, Azure API Management, Azure Front Door, Azure Storage, Azure CDN, and AWS. Expertise in serverless architectures, microservices, Docker, Bicep, and ARM templates.
SQL & Data Integration
Deep SQL expertise with MS SQL Server as primary platform. Experience building multi-dialect SQL tooling and integrations for cloud data warehouses including Snowflake, Redshift, and Databricks. Proficiency in T-SQL, stored procedures, query performance tuning, PostgreSQL, MySQL, Oracle, Redis, Azure Cosmos DB, and database CI/CD.
DevOps & CI/CD
CI/CD experience across five platforms over twenty years: Azure DevOps (Repos, Pipelines, Boards), GitHub Actions, Jenkins, TFS, and Bamboo with NAnt/MSBuild. Expertise in Docker, database CI/CD for MS SQL, branch policies, release management, and Git hosting integrations across Azure Repos, Bitbucket, GitHub, and GitLab.
AI-Driven Development
Daily practice with Claude Code, GitHub Copilot, Cursor, Codex/ChatGPT, custom MCP servers, and agentic workflows. Hands-on LLM integration including RAG, multi-agent pipelines, AI evals, guardrails, unattended agent loops, and AI-assisted test generation.
Legacy Modernization
Migration, replatforming, and re-architecting of production .NET Framework systems while continuing feature development and support. Experience with .NET Framework all versions through 4.8, ASP.NET MVC, ASP.NET Web Forms, ADO.NET, AngularJS, jQuery, monolith-to-services, and strangler-fig patterns.
Identity & Security
Experience with Azure AD, Entra ID, OpenIddict, IdentityServer, OAuth2, OIDC, JWT, SSO, RBAC, WebAuthn passkeys, and GDPR compliance.
Quality & Shift-Left QA
End-to-end test automation with Playwright, SonarQube Quality Gates, Roslyn analyzers, .NET analyzers, ReSharper InspectCode, Qodana, Gitleaks, Dependabot, Testcontainers, and AI-assisted test generation.
Front-End / SPA Development
Front-end development with React, Vite, MUI, Angular, AngularJS, TypeScript, and JavaScript. Building SPA front-ends over .NET backends.
Leadership & Delivery
Team supervision, mentoring, estimation, planning, and full SDLC ownership. Experience with Agile, Scrum, and stakeholder communication across multi-year projects.
Experience
Professional experience10+ years
Freelancer since2022
Languages
EnglishFluentRussianNative speakerBelarusianNative speaker
Project history
Own architecture, development, and delivery across a four-brand equestrian platform: rider-facing event entries and training diaries plus show management — timing/scoring, live results, membership, financial reporting. Authored enterprise architecture documentation, designed SSO integration, migrated ~50 projects SDK-style to .NET 10 Minimal APIs, decomposed monolith into isolated services (strangler-fig), rewrote stored procedures achieving ~100 procedures 20-30x faster, resolved 70+ performance tickets. Stack: C#, .NET Core 10, .NET Framework 4.8, ASP.NET Web Forms, AngularJS, jQuery, EF Core, MS SQL Server, Azure (IaaS, VMs, Functions, Storage, Static Websites, CDN), Angular, React, Azure DevOps.
Software R&D and outsourcing company — embedded as engineer/architect on client products. Roles included Solution Architect, Senior .NET Developer, Team Lead, Project Manager across multiple client engagements.
Owned large platform features end-to-end — architecture, estimation, infrastructure, delivery, stabilization — while supervising and mentoring the backend team. Led multi-year migration of a legacy ASP.NET MVC / .NET Framework 4.7.2 monolith to .NET 10. Built multi-dialect SQL compiler for Snowflake, Redshift, and Databricks/Unity Catalog. Architected Git-backed model storage across Azure DevOps / Bitbucket / S3. Designed User Groups system, SSO, self-service signup, and FastSpring license billing. Applied AI daily across the SDLC with Claude Code, custom MCP servers, and agentic workflows. Implemented Playwright end-to-end automation and SonarQube Quality Gates. Stack: C#, .NET 10, ASP.NET Core, EF Core, .NET Framework 4.7.2, ASP.NET MVC, ADO.NET, MS SQL Server, Rust, Azure, Azure DevOps, AWS S3, Docker, Snowflake, Redshift, Databricks, dbt, OpenAPI, SQS, SonarQube, Playwright.