Leonardo Apollonio

Meet Leonardo

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Senior full-stack engineer with 8+ years building and modernizing business-critical web applications. I deliver C#/.NET and ASP.NET Core REST APIs, Angular/React/TypeScript front ends, integrations, and SQL Server/PostgreSQL data systems. Experienced with Azure, AWS, Git, and CI/CD, focused on maintainable architecture, reliable delivery, and clear communication. Available up to 20 hrs/week.