Senior Full-Stack Engineering Portfolio | .NET, Angular & React by Leonardo ApollonioSenior Full-Stack Engineering Portfolio | .NET, Angular & React by Leonardo Apollonio

Senior Full-Stack Engineering Portfolio | .NET, Angular & React

Leonardo Apollonio

Completed work

Backend Engineer

Frontend Engineer

Fullstack Engineer

Angular

ASP.NET Core

React

Computer Software

Senior Full-Stack Engineering Portfolio

A curated overview of 8+ years building and modernizing business-critical web applications, APIs, data systems, and frontend products.

WHAT CLIENTS CAN EVALUATE

• C#/.NET and ASP.NET Core REST APIs. • Angular, React, and TypeScript frontends. • SQL Server and PostgreSQL data work. • Azure, AWS, Git, and CI/CD delivery. • Selected enterprise experience and current self-directed public demos. • Clear service and contact paths for focused freelance engagements.

FEATURED PUBLIC DEMOS

• OrderFlow API — resilient .NET workflows, tests, Docker, and CI. • Ops Dashboard — Angular operations UI connected to the OrderFlow contract. • LaunchBoard — accessible React release-readiness product demo.

Portfolio: https://leo8190.github.io/portfolio/ GitHub: https://github.com/leo8190

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Completed work

Posted Aug 1, 2026

Curated senior .NET work across APIs, Angular/React frontends, SQL data systems, cloud delivery and public engineering demos.

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