07/30/2026 updated
TG
partially available
info: Available evenings and weekends
Senior Full-Stack .NET Developer | C# / .NET 10, React, Clean Architecture, Legacy Modernisation
Chessington, United Kingdom
Only remote
BSc ComputingAbout me
8 years' professional .NET experience. I modernise legacy .NET (WebForms to MVC to .NET 10) and build multi-tenant SaaS: Clean Architecture, CQRS, EF Core, React 19, Next.js, SignalR. Recent platform: ~5,000 automated tests, CI/CD. Also AI agent orchestration. London-based, UK and EU invoicing.
ASP.NET.NET FrameworkC Sharp (Programming Language)DevOpsManaged Extensibility Framework (.NET Framework)Software Architecture.NET CoreDeployment AutomationFull Stack DevelopmentDomain Driven Design
Full-Stack .NET Development
Over 7 years of experience building and modernising scalable C#/.NET web applications using ASP.NET Core (MVC, Web API), Entity Framework Core, SQL Server, and Clean Architecture with CQRS and MediatR patterns, including multi-tenant design.
CI/CD & DevOps
End-to-end ownership of CI/CD pipelines using Azure DevOps (Boards, Pipelines) and GitHub Actions, covering deployment automation, release management, and Agile delivery practices (Scrum/Kanban).
AI & Automation Development
Development of AI-augmented tooling and internal AI platforms using Claude Code, OpenAI API, Model Context Protocol (MCP), AI agent orchestration, workflow automation, and tool/function calling to accelerate software delivery.
Frontend Development
Building modern frontend applications with React 19, Next.js 16, TypeScript, JavaScript, HTML, CSS, and Tailwind CSS 4, including contributions to platform rewrites working from Figma designs.
Database Design & Optimisation
Design and optimisation of complex SQL queries and stored procedures using SQL Server, T-SQL, Entity Framework Core 10, and SSMS to support heavy data workloads and improve system performance.
Software Architecture & Patterns
Application of Clean Architecture, CQRS, MediatR, Repository Pattern, Domain-Driven Design, and Multi-Tenant Architecture to deliver maintainable and scalable enterprise solutions.
Testing
Automated testing across the stack using xUnit, Playwright for E2E, Vitest, React Testing Library, and Jest on mobile, with roughly 5,000 automated tests across production platforms.
Real-Time & Desktop Applications
Integration of real-time features via SignalR across web, desktop, and mobile clients, and development of desktop POS applications using WPF and WebView2 with custom JS-to-.NET interop bridges.
Shopify Integration
Building embedded Shopify apps using React Router, Prisma, and OpenAI, wired through the Shopify OAuth2 app authorization flow for intelligent order management and automation.
Over 7 years of experience building and modernising scalable C#/.NET web applications using ASP.NET Core (MVC, Web API), Entity Framework Core, SQL Server, and Clean Architecture with CQRS and MediatR patterns, including multi-tenant design.
CI/CD & DevOps
End-to-end ownership of CI/CD pipelines using Azure DevOps (Boards, Pipelines) and GitHub Actions, covering deployment automation, release management, and Agile delivery practices (Scrum/Kanban).
AI & Automation Development
Development of AI-augmented tooling and internal AI platforms using Claude Code, OpenAI API, Model Context Protocol (MCP), AI agent orchestration, workflow automation, and tool/function calling to accelerate software delivery.
Frontend Development
Building modern frontend applications with React 19, Next.js 16, TypeScript, JavaScript, HTML, CSS, and Tailwind CSS 4, including contributions to platform rewrites working from Figma designs.
Database Design & Optimisation
Design and optimisation of complex SQL queries and stored procedures using SQL Server, T-SQL, Entity Framework Core 10, and SSMS to support heavy data workloads and improve system performance.
Software Architecture & Patterns
Application of Clean Architecture, CQRS, MediatR, Repository Pattern, Domain-Driven Design, and Multi-Tenant Architecture to deliver maintainable and scalable enterprise solutions.
Testing
Automated testing across the stack using xUnit, Playwright for E2E, Vitest, React Testing Library, and Jest on mobile, with roughly 5,000 automated tests across production platforms.
Real-Time & Desktop Applications
Integration of real-time features via SignalR across web, desktop, and mobile clients, and development of desktop POS applications using WPF and WebView2 with custom JS-to-.NET interop bridges.
Shopify Integration
Building embedded Shopify apps using React Router, Prisma, and OpenAI, wired through the Shopify OAuth2 app authorization flow for intelligent order management and automation.
Languages
BulgarianNative speakerEnglishFluent
Project history
Developed and maintained core survey web applications using C#, VB.NET, ASP.NET, HTML, CSS, and JavaScript for enterprise clients across the UK. Led modernisation of legacy WebForms systems to modern .NET architectures. Managed end-to-end project lifecycles, supervised junior developers, and led release management. Designed and optimised complex SQL queries and stored procedures, built and maintained CI/CD pipelines in Azure DevOps, and developed internal AI tools for survey theme generation, translation automation, GDPR compliance assistance, and support query automation.
Co-architecting a production-grade, multi-tenant platform using .NET 10, ASP.NET Core, EF Core 10, React 19, Next.js 16, and TypeScript with Tailwind CSS. Implemented Clean Architecture with CQRS and MediatR, role-based access control, and shared-database multi-tenancy. Built a desktop POS application using WPF and WebView2, integrated real-time features via SignalR, and maintained around 5,000 automated tests with CI/CD via GitHub Actions.
Built a self-hosted platform for deploying and managing fleets of autonomous AI coding agents with scheduled task execution, live streaming logs, and performance tracking. .NET 10 backend with React 19 PWA frontend, background job scheduler, and Telegram bot control. Agents run on Claude Code and are MCP-enabled.