09/04/2026 updated
100 % available
Senior Backend .NET / C# Developer | Tech Lead | SQL Server · REST API · AWS | 13 yrs | B2B remote
Las Palmas de Gran Canaria, Spain (Canary Islands)
Only remote
IT Technical DiplomaAbout me
I build backend systems that have to keep running — public-sector platforms, enterprise integrations, IoT protocols. I work best where the problem is architectural: API design, database performance, legacy integration. Based in the Canary Islands, working remotely across the EU.
ASP.NET.NET FrameworkApplication Programming Interfaces (APIs)ASP.NET MVC FrameworkC Sharp (Programming Language)DevOpsEntity FrameworkMicrosoft SQL ServersModel View Controller (MVC).NET CoreBackendApi Design
C# and .NET Development
Over 13 years of experience developing enterprise applications using C#, .NET Framework, .NET Core, and ASP.NET MVC on multi-layer architectures, with a strong focus on scalable and maintainable backend systems.
SQL Server and Database Design
Deep expertise in SQL Server including stored procedures, triggers, complex views, query optimisation, and performance tuning on large datasets.
REST API Design and Architecture
Extensive experience designing and developing REST APIs following client-server, MVC, Repository pattern, and SOLID principles, with a focus on performance and reliability.
Cloud and DevOps
Hands-on experience with AWS, Git, GitHub, CI/CD pipelines, Docker, IIS, and Windows Server for deployment and infrastructure management.
Application Security
Knowledge of web application security practices including HTTPS, HSTS, CSP, cookie security, and input sanitisation.
Scheduling and Background Jobs
Implementation of asynchronous background jobs and scheduling using Quartz.NET and Windows Services.
Testing
Experience with unit testing and integration testing to ensure code quality and system reliability.
JavaScript and Frontend Integration
Working knowledge of JavaScript for frontend integration within backend-driven web applications.
Entity Framework and ORM
Use of Entity Framework as an ORM layer within .NET applications for data access and management.
Web Services and WCF
Development and integration of Web Services and WCF-based services for enterprise communication and interoperability.
Over 13 years of experience developing enterprise applications using C#, .NET Framework, .NET Core, and ASP.NET MVC on multi-layer architectures, with a strong focus on scalable and maintainable backend systems.
SQL Server and Database Design
Deep expertise in SQL Server including stored procedures, triggers, complex views, query optimisation, and performance tuning on large datasets.
REST API Design and Architecture
Extensive experience designing and developing REST APIs following client-server, MVC, Repository pattern, and SOLID principles, with a focus on performance and reliability.
Cloud and DevOps
Hands-on experience with AWS, Git, GitHub, CI/CD pipelines, Docker, IIS, and Windows Server for deployment and infrastructure management.
Application Security
Knowledge of web application security practices including HTTPS, HSTS, CSP, cookie security, and input sanitisation.
Scheduling and Background Jobs
Implementation of asynchronous background jobs and scheduling using Quartz.NET and Windows Services.
Testing
Experience with unit testing and integration testing to ensure code quality and system reliability.
JavaScript and Frontend Integration
Working knowledge of JavaScript for frontend integration within backend-driven web applications.
Entity Framework and ORM
Use of Entity Framework as an ORM layer within .NET applications for data access and management.
Web Services and WCF
Development and integration of Web Services and WCF-based services for enterprise communication and interoperability.
Experience
Professional experience10+ years
Freelancer since2012
Languages
EnglishFluentItalianNative speakerSpanishFluent
Project history
Tech Lead and GitHub maintainer of the open-source platform GeDASI for the Lombardy Region, managing amendments and council acts for the regional assembly. Responsibilities include REST API design and development in ASP.NET MVC, SQL Server database design, asynchronous PDF generation with Quartz.NET, query optimisation, application security (HSTS, CSP, input sanitisation, cookie hardening), CI/CD pipelines and deployment on IIS/Windows Server, code review, issue triage, and custom plugins for document preservation systems.
Eleven years running parallel engagements across industrial IoT, healthcare, public administration and B2B software. Clients included 221e srl (communication protocol backend for advanced IoT sensors), TeamSystem WELLNESS (2017-2023, backend for a wellness-centre management platform), Gruppo CPE Eredi Monti srl (2015-2023, enterprise C# / .NET applications), 2C Solution srl (2012-2021, custom B2B software development), and A.T.E.R. Padova (2015-2016, information systems for a public housing authority).