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Senior full-stack .NET/C# engineer with 8+ years of experience building and modernizing web applications, ASP.NET Core REST APIs, Angular and React front ends, and SQL Server/PostgreSQL systems. Experienced with Azure, AWS, Git and CI/CD. I focus on reliable architecture, clear communication, debugging, integrations and maintainable delivery. English: Fluent. Available up to 20 hours per week outside my full-time role. Portfolio: _Website not available. Sign in: https://www.twine.net/signup_ | GitHub: _Website not available. Sign in: https://www.twine.net/signup_…Senior full-stack .NET/C# engineer with 8+ years of experience building and modernizing web applications, ASP.NET Core REST APIs, Angular and React front ends, and SQL Server/PostgreSQL systems. Experienced with Azure, AWS, Git and CI/CD. I focus on reliable architecture, clear communication, debugging, integrations and maintainable delivery. English: Fluent. Available up to 20 hours per week outside my full-time role. Portfolio: _Website not available. Sign in: https://www.twine.net/signup_ | GitHub: _Website not available. Sign in: https://www.twine.net/signup_

Leonardo Apollonio

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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Senior full-stack .NET/C# engineer with 8+ years of experience building and modernizing web applications, ASP.NET Core REST APIs, Angular and React front ends, and SQL Server/PostgreSQL systems. Experienced with Azure, AWS, Git and CI/CD. I focus on reliable architecture, clear communication, debugging, integrations and maintainable delivery. English: Fluent. Available up to 20 hours per week outside my full-time role. Portfolio: _Website not available. Sign in: https://www.twine.net/signup_ | GitHub: _Website not available. Sign in: https://www.twine.net/signup_…Senior full-stack .NET/C# engineer with 8+ years of experience building and modernizing web applications, ASP.NET Core REST APIs, Angular and React front ends, and SQL Server/PostgreSQL systems. Experienced with Azure, AWS, Git and CI/CD. I focus on reliable architecture, clear communication, debugging, integrations and maintainable delivery. English: Fluent. Available up to 20 hours per week outside my full-time role. Portfolio: _Website not available. Sign in: https://www.twine.net/signup_ | GitHub: _Website not available. Sign in: https://www.twine.net/signup_

Available to hire

Senior full-stack .NET/C# engineer with 8+ years of experience building and modernizing web applications, ASP.NET Core REST APIs, Angular and React front ends, and SQL Server/PostgreSQL systems. Experienced with Azure, AWS, Git and CI/CD. I focus on reliable architecture, clear communication, debugging, integrations and maintainable delivery. English: Fluent. Available up to 20 hours per week outside my full-time role. Portfolio: Website not available. Sign in: https://www.twine.net/signup | GitHub: Website not available. Sign in: https://www.twine.net/signup