Open to opportunities

Helder Simão

@heldersimo

Message

I am a software developer specializing in .NET, React, and mobile app development.

Portugal

Message

What I'm looking for

I am seeking a software development role building full-stack and mobile applications (.NET, React, Xamarin) in a collaborative team with mentorship and growth opportunities.

I build full-stack and mobile applications with a focus on clean architecture and user experience. I have implemented MVC architectures, backend APIs, responsive frontends, and mobile apps using .NET, React, Xamarin, Firebase, PHP/MySQL and SyncFusion components to deliver production-ready features.

I am pragmatic about deployment and operations, with hands-on experience in SQL Server, Windows Server, Linux, virtualization, and hardware diagnostics. I hold an IBM Data Science Professional Certificate and continually iterate on projects that demonstrate tiered access systems, real-time event features, user authentication, and admin dashboards.

Experience

Work history, roles, and key accomplishments

Mobile Developer

Helder Simao Lima

Built a cross-platform React Native event participation app with Firebase Authentication, real-time event creation for admins, favorites, and participation tracking.

React Native Firebase Authentication Firebase Realtime Database JavaScript Android iOS

Full Stack Developer

Helder Simao Lima

Implemented an ASP.NET Core MVC expense tracker using SyncFusion, building backend expense handling, user authentication, and a responsive UI to improve cross-device usability.

.NET ASP.NET Core MVC SyncFusion C#)Authentication Responsive Design SQL Server Syncfusion

Web Developer

Helder Simao Lima

Developed a React frontend and PHP/MySQL backend for a movie streaming app featuring tiered subscriptions, admin dashboard, favorites, and watch progress tracking.