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José Maldonado

José Maldonado

Buenos Aires, Argentina
Member since July 27, 2015
José is a skilled software developer with a computer engineering degree and experience in web development, mobile apps, and bug fixing. He enjoys learning new technologies, contributing to open source projects, and working on interesting and challenging projects.
José is now available for hire
  • JavaScript, 7 years
  • SQL, 6 years
  • C#, 5 years
  • Node.js, 4 years
  • PHP, 4 years
  • Java, 4 years
  • AngularJS, 4 years
  • React.js, 2 years
Buenos Aires, Argentina
Preferred Environment
Notepad++, Git, Linux
The most amazing... I've developed is an immigration control system that allowed to uncover a network of migrant traffickers in Senegal
  • Front-end Developer
    Advanced Threat Analytics (via Toptal)
    2017 - PRESENT
    • Developed and maintained the main site, implementing new features, detecting and fixing bugs, and applying new themes.
    • Developed an Android application using React Native.
    • Integrated PubNub in the main site and in the Android app.
    Technologies: JavaScript, Angular, React, Grunt, LESS, Python, Docker, Git
  • Front-end Developer
    Termtegrity (via Toptal)
    2017 - PRESENT
    • Transformed the existing web application into a single-page application.
    • Converted wireframe images into interactive HTML web pages.
    • Implemented a mobile app using React Native.
    Technologies: JavaScript, Angular, Grunt, LESS, Python, Docker, Git
  • Game Developer
    Sabacc Creative (via Toptal)
    2016 - 2017
    • Added new functionalities and fixed bugs to the HTML5-based game.
    • Integrated several services (such as Google Analytics, OneSignal and Apteligent) to an Apache Cordova app.
    • Developed a real time server, using web sockets, to host multi-player games.
    Technologies: HTML5, JavaScript, Phaser, Apache Cordova, Android, iOS, Node.js, Web Sockets
  • Lead Developer
    2011 - 2017
    • Developed and maintained IICS, an integrated immigration control system, currently being used at several international airports from West Africa.
    • Developed an HTML5 application for employee supervision.
    • Integrated the FIND service, from Interpol, at the airports of the Ivory Coast and Senegal.
    • Designed and implemented software for the management and printing of residence and work permits, for the government of Sierra Leone.
    • Managed teams of up to six people, using Agile methodologies.
    Technologies: C#, .NET, SQL Server, MySQL, PostgreSQL, JavaScript, jQuery, AngularJS, React.js, Node.js, Apache Cordova, MongoDB, CouchDB, HTML5, CSS, LESS, Sass, PHP, Git, Mercurial
  • Full-stack Developer
    RentMyChurch (via Toptal)
    2016 - 2016
    • Converted PSD template images into interactive HTML web pages.
    • Performed website migration.
    Technologies: PHP, JavaScript, jQuery, Bootstrap, CSS, Git
  • Front-end Developer
    Azumio (via Toptal)
    2016 - 2016
    • Developed single-page applications that consumed a REST API.
    • Converted PSD template images into interactive HTML web pages.
    Technologies: HTML, JavaScript, Angular, jQuery, CSS, Sass, Git
  • Full-stack Developer
    Funnel Envy (via Toptal)
    2015 - 2016
    • Designed and implemented unit tests.
    • Discovered, reported, and fixed bugs (in both front-end and back-end).
    • Implemented integration layers between the application and third party services.
    Technologies: JavaScript, Node.js, Sails, Angular, Mocha, Git
  • Front-end Developer
    P4 Global (via Toptal)
    2015 - 2015
    • Integrated and modified (for better integration) an Autocomplete plugin.
    • Integrated and extended (for custom features) a WYSIWYG component.
    • Designed an interactive view for importing Word documents.
    • Integrated a JavaScript file manger with the application's own back-end methods.
    Technologies: PHP, Laravel, JavaScript, jQuery, CSS, Vagrant, Git
  • Front-end Developer
    Conversion Systems (via Toptal)
    2015 - 2015
    • Converted PSD template images into HTML web pages.
    Technologies: HTML, CSS, JavaScript, jQuery
  • Full-stack Developer
    2010 - 2011
    • Designed and implemented a system for managing purchase and work orders for RomiPack.
    • Designed and implemented a web application for managing purchase orders for Delicity.
    • Implemented a human resources management tool for AON.
    • Developed a application of reservation management for Rojo Tango.
    Technologies: Java, J2EE, MySQL, PostgreSQL, HTML, CSS, JavaScript, jQuery, Android, PHP, CodeIgniter
  • IT Intern
    Institute of High Voltage and Energy Transmission
    2008 - 2009
    • Developed an application for managing experiments and maintaining the institute's website.
    Technologies: Java, MySQL, HTML, CSS, JavaScript
  • IICS (Development)

    Implementation of an immigration control system, currently used in several airports in West Africa, which allows to capture wanted criminals, detect tax evaders and find suspicious travel patterns.

  • Biscuissimo (Development)

    Development of a web application for the Tentissimo Group, a coffee house chain with more than 120 locals in Buenos Aires, for simplify the management of sales orders and the estimation of required supplies.

  • SimCo60 (Development)

    Implementation of a scientific simulation tool, for estimating radiation exposure levels, developed for the Semi-Industrial Irradiation Plant at the Ezeiza Atomic Center, a facility that provides services of ionizing radiation exposure for sterilization of medical equipment, irradiation of food and decontamination of cosmetics.

  • Neon Camera (Development)

    Development of an Android app that uses computer vision for generate pictures with a effect of neon lights.

  • Open Source (Development)

    Development of several open source projects, such as aFileDialog (a file chooser library for Android), ngComboDatePicker (an Angular directive that implements date pickers using combo boxes) and jqScrollAnim (a jQuery plugin for define animations whose reproduction depends on the position of the vertical scroll).

  • Award "Best graduates in Engineering Careers" (Other amazing things)

    Award granted by the National Academy of Engineering for being one of the best engineers graduated, from an Argentinian university, in the year 2009.

  • The Art of War Applied To Software Development (Publication)
    The Art of War is an ancient military treatise, but despite its age, the text is still included in the syllabus at many military schools. Sun Tzu’s principles and teachings also have practical applications in politics, business, sports, and, believe it or not, software development. In fact, you might just be applying some of these principles in your daily routine, without even knowing. In this post, Toptal Freelance Software Engineer Jose F. Maldonado explains why many of these ancient teachings still matter, and what you can do to make them work for you and your team.
  • José is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. José shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.
  • Languages
    Java, JavaScript, C#, CSS, SQL, Python, PHP, HTML5, Core Java (J2EE), R, Scala, TypeScript, Ruby, CoffeeScript
  • Frameworks
    .NET, AngularJS, React Native, CodeIgniter, ASP.NET, Angular, Windows Communication Framework (WCF), Cordova, Sails.js,, Ruby on Rails (RoR), WPF
  • Libraries/APIs
    jQuery, Node.js, React.js, D3.js
  • Tools
    Git, Mercurial, Gulp.js, Grunt, Gimp, Inkscape, Adobe Photoshop, Adobe Illustrator
  • Storage
    SQLite, MySQL, PostgreSQL, MongoDB, Microsoft SQL Server, Oracle 11g, CouchDB, AWS S3
  • Paradigms
    Unit Testing, MEAN Stack, Agile Software Development
  • Platforms
    Windows, Android, Linux, Docker, OpenShift, Heroku, iOS, WordPress, Amazon Web Services (AWS)
  • Certificate in Software Engineering
    University of Technology of Belfort-Montbéliard - France
    2009 - 2009
  • Engineer's degree (summa cum laude) in Computer Sciences
    National University of Tucumán - Argentina
    2004 - 2009
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