10/30/2026 updated
100 % available
Freelance .NET Backend Engineer - C# / ASP.NET Core / SQL Server / Azure DevOps
Monza, Italy
Only remote
B.Sc. Information TechnologyAbout me
.NET Software Engineer! Building enterprise applications and industrial integrations in Milan. I take backend components from architecture and implementation through integration testing and production.
AI AgentsAzure DevOpsASP.NETAtlassian JiraC Sharp (Programming Language)RabbitMQSQL Databases.NET CoreReact.jsMulti-Agent SystemsAsp.net Web ApiAtlassian BitbucketReact Redux
C# & ASP.NET Core Web API
Expert-level knowledge of C#, .NET 8 and ASP.NET Core Web API for building enterprise-grade REST APIs, including EF Core for data access and query-plan tuning for SQL Server performance optimization.
SQL Server & T-SQL
Deep expertise in SQL Server and T-SQL, including stored procedures, execution plans, server-side paging, sorting and filtering, as well as performance tuning for large-scale datasets in production environments.
Azure DevOps & CI/CD
Advanced experience with Azure DevOps YAML CI/CD pipelines, including automated tests, rollback strategies and integration of xUnit/Moq test suites to ensure reliable and fast software delivery.
JWT Authentication & API Security
Advanced knowledge of JWT and auth flows, including implementation of request-level proof of Gateway authentication, shared-secret header validation and secure handling of secret keys.
Redis & Caching
Advanced use of Redis for caching and licensing system validation, improving application performance and reducing database load in production B2B software.
SignalR & Real-Time Dashboards
Implementation of real-time KPI reporting and operational dashboards using SignalR for management and operational use cases.
QuestPDF & Document Generation
Advanced use of QuestPDF for automated contract and document generation, producing approximately 10,000 documents per month including product descriptions, prices and regulatory clauses.
React & TypeScript
Working knowledge of React and TypeScript for building reusable front-end components using Material UI and Tailwind CSS, as well as integrating REST APIs in full-stack .NET projects.
Docker & IIS/Kestrel
Working knowledge of Docker and IIS/Kestrel for containerization and hosting of .NET applications in production and development environments.
AI Tooling & LLM API Integration
Practical experience with AI-assisted engineering tools including Claude Code, Codex, Cursor, Copilot, Gemini and MCP, as well as integration of LLM APIs into production software such as AI chatbots.
Windows Services & API Gateway Integration
Advanced experience building Windows Service components and integrating API Gateways in multi-project .NET solutions for industrial and enterprise platforms.
Expert-level knowledge of C#, .NET 8 and ASP.NET Core Web API for building enterprise-grade REST APIs, including EF Core for data access and query-plan tuning for SQL Server performance optimization.
SQL Server & T-SQL
Deep expertise in SQL Server and T-SQL, including stored procedures, execution plans, server-side paging, sorting and filtering, as well as performance tuning for large-scale datasets in production environments.
Azure DevOps & CI/CD
Advanced experience with Azure DevOps YAML CI/CD pipelines, including automated tests, rollback strategies and integration of xUnit/Moq test suites to ensure reliable and fast software delivery.
JWT Authentication & API Security
Advanced knowledge of JWT and auth flows, including implementation of request-level proof of Gateway authentication, shared-secret header validation and secure handling of secret keys.
Redis & Caching
Advanced use of Redis for caching and licensing system validation, improving application performance and reducing database load in production B2B software.
SignalR & Real-Time Dashboards
Implementation of real-time KPI reporting and operational dashboards using SignalR for management and operational use cases.
QuestPDF & Document Generation
Advanced use of QuestPDF for automated contract and document generation, producing approximately 10,000 documents per month including product descriptions, prices and regulatory clauses.
React & TypeScript
Working knowledge of React and TypeScript for building reusable front-end components using Material UI and Tailwind CSS, as well as integrating REST APIs in full-stack .NET projects.
Docker & IIS/Kestrel
Working knowledge of Docker and IIS/Kestrel for containerization and hosting of .NET applications in production and development environments.
AI Tooling & LLM API Integration
Practical experience with AI-assisted engineering tools including Claude Code, Codex, Cursor, Copilot, Gemini and MCP, as well as integration of LLM APIs into production software such as AI chatbots.
Windows Services & API Gateway Integration
Advanced experience building Windows Service components and integrating API Gateways in multi-project .NET solutions for industrial and enterprise platforms.
Experience
Professional experience0 - 5 years
Freelancer since2021
Languages
EnglishGoodItalianFluentPolishBasic knowledgeRussianNative speakerUkrainianNative speaker
Project history
Enterprise quality-management platform for industrial tightening. Responsibilities included performance optimization of results grids, building a separate statistics endpoint, fixing authentication security flaws, implementing torque-wrench device synchronization, and writing API contracts and test plans. Tech: C#, .NET, ASP.NET Core Web API, EF Core, SQL Server, T-SQL, stored procedures, execution plans, DevExtreme ASP.NET Data, JWT, API Gateway, Windows Services, Newtonsoft.Json.
Software company producing labels, safety instructions and documentation for hazardous goods. Built OrderManager internal sales tool, contract and document generation with QuestPDF, a JWT-based licensing system, an AI assistant chatbot, real-time KPI dashboards with SignalR, and moved releases to Azure DevOps YAML CI/CD. Tech: C#, ASP.NET Core, EF Core, SQL Server, QuestPDF, JWT, Redis, SignalR, Azure DevOps YAML, xUnit, Moq, React, TypeScript, LLM API integration.
Built reusable React/TypeScript components on REST APIs using Material UI and Tailwind CSS.