Gerardo Gastaldo, Software Developer in Buenos Aires, Argentina
Gerardo Gastaldo

Software Developer in Buenos Aires, Argentina

Member since February 1, 2013
Gerardo is a senior full-stack developer with several years of experience creating polished applications and over a decade of broad development experience. He focuses on working in the front end with React and improving his JavaScript/TypeScript experience. He has worked efficiently both independently and as a member of a development team. He carries a degree in systems engineering.
Gerardo is now available for hire




Buenos Aires, Argentina



Preferred Environment

Git, VS Code, Visual Studio 2017

The most amazing... I've coded is a JavaScript function that cleans up browser-generated HTML by pasting it from Microsoft Word. It supports bullets, lists, and tabs.


  • React Developer

    2020 - PRESENT
    LocalPayments (Freelance)
    • Create from scratch a dashboard portal for the new version of the platform using Ant Design components.
    • Designed all the screens, layouts, forms, and more from very low-level wireframes.
    • Proposed changes according to common use cases (use of modals, icons for actions, and so on).
    • Led other junior front-end developers—assigning tasks, reviewing code, and more.
    Technologies: CSS3, HTML5, TypeScript, React
  • React/C# Developer

    2020 - 2020
    E11 Capital
    • Created several microservices as part of a back end using ASP.NET Core.
    • Built the initial version of the admin portal using React.
    • Helped create SQL import scripts to import data from a legacy application.
    Technologies: React, ASP.NET Core 3, PostgreSQL
  • Web Developer | DevOps

    2018 - 2019
    • Set up Azure DevOps Services, projects, repositories, VMs, automated builds, and continuous integration.
    • Created a portal in React using SemanticUI components to show statistics charts pulled from a local Tableau server.
    • Configured and managed VM running a Tableau server to provide the charts.
    Technologies: MongoDB, Azure DevOps, Node.js, React, Azure
  • Full-stack Developer

    2018 - 2018
    US Compliance Systems, Inc.
    • Fixed bugs in the current UI in Razor Views with jQuery.
    • Created a new UI from scratch using React in order to replace the old UI written with Razor Views with jQuery.
    • Helped refactor the .NET Core back end from a monolithic service to microservices run in Docker.
    Technologies: .NET, ASP.NET Core, React
  • Senior .NET Developer

    2016 - 2018
    Leapfactor, Inc.
    • Created a small mobile web app for capturing new clients. This was created using .NET Core and Framework 7 for the UI.
    • Developed a module from a mobile app using Angular 2 (TypeScript) to make money transfers. It has a custom UX design provided from the UX team, which I recreated with HTML and Sass.
    • Helped build a web administration console for internal use created with React and Redux.
    • Contributed to the development of Kindability, a project built using C#, ServiceStack, and RavenDB.
    Technologies: ASP.NET Core, .NET, React, Angular, ServiceStack, C#
  • Semi Senior Developer

    2015 - 2016
    • Created a module in an enterprise desktop application for managing financial entities. This development involved WPF, MVVM, and Prism.
    Technologies: .NET, REST, Windows Presentation Foundation (WPF), C#
  • Main Developer

    2014 - 2015
    Spirit Consulting, LLC
    • Maintained the CitiWonders internal management web app.
    • Started prototyping a dating app with Xamarin Forms.
    Technologies: .NET, Xamarin, C#, ASP.NET MVC 5
  • .NET Developer

    2012 - 2014
    Making Sense, LLC
    • Developed the back end of Lander (an end-user product, related with marketing) in ASP.NET.
    • Worked on an internal web portal related to email marketing.
    • Used MVC programming paradigms to make controllers and models in C#.
    • Used WCF to communicate with web services.
    • Created a Windows Store app for Rackspace, LLC, that is a front-end for server management in particular file servers.
    Technologies: .NET, JavaScript, Entity Framework, Azure, ASP.NET MVC 3, C#
  • .NET Developer

    2011 - 2012
    Philips Medizin Systeme Böblingen, Germany
    • Worked on a TFS implementation of an issue tracking app for medical equipment.
    • Created a tool to import legacy tracking from Excel sheets to TFS.
    Technologies: .NET, Excel Add-ins, TFS API, LINQ, C#


  • ASP.NET Developer (Development)

    This is an email marketing platform website that I have worked on. I added new features to the site using ASP.NET MVC 3 with EF.
    I have been working on this site that is a Email Marketing platform. I also used AJAX, UI, and jQuery for client side logic in the frontend.

  • Rackspace Cloud App (Development)

    This is an app that I created in two months as part of an eight person team of developers. It was implemented as the new frontend for the Rackspace Control Panel. Communication with Rackspace servers was accomplished using REST API. We used an MVVM pattern in conjunction with XAML and C#.


  • Languages

    C#.NET, HTML, CSS, C#, JavaScript, SQL, CSS3, TypeScript, HTML5
  • Frameworks

    ASP.NET Core, .NET, ASP.NET MVC, ASP.NET, Entity, ASP.NET MVC 3, ASP.NET MVC 5, ServiceStack, Entity Framework Core, Angular, MVVM Light Toolkit
  • Tools

    Visual Studio 2019, Jira, VS Code, Git, Bitbucket, GitHub
  • Paradigms

    Scrum, Agile Software Development, Azure DevOps, REST, CMMI
  • Platforms

    Windows, Mac OS, Visual Studio Code, Azure, Xamarin, Visual Studio 2017, Docker
  • Industry Expertise

    Web Development
  • Storage

    SQL Server 2008, PostgreSQL, MongoDB
  • Other

    Ajax, Cloud Computing, Cloud, Excel Add-ins, ASP.NET Core 3
  • Libraries/APIs

    jQuery, jQuery UI, React, NSubstitute, Entity Framework, LINQ, TFS API, Node.js, React Redux


  • Bachelor of Technology degree in Systems Engineering
    2003 - 2009
    Universidad Tecnológica Nacional - Buenos Aires, Argentina

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