Sergio Antonio Milici

Buenos Aires, Argentina

Member since December 17, 2013

Sergio is a software engineer with a talent for developing scalable and efficient solutions for complex problems. He has a comprehensive understanding of design processes, with experience in all the design stages of a product, including research, development, scalability, and testing.

Sergio is now available for hire

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Portfolio

Hollaback! (via Toptal)
AngularJS, Ionic, Sass, JavaScript
Kimono (via Toptal; https://usekimono.com/)
AngularJS, Ionic, Cordova, Android, iOS HTML5, CSS3, JavaScript
L2 (via Toptal)
Java, Maven, Jenkins

Experience

AngularJS, 4 years
HTML5 Mobile Apps, 4 years
Reactive Programming, 3 years
Ionic, 3 years
Redux, 2 years
Node.js, 2 years
RxJS, 2 years
Ionic 2, 1 year

Availability

Part-time

Preferred Environment

Node.js,AngularJS,NoSQL,Ionic, Mobile, Android,ios

The most amazing...

...project I've created is a distributed system to control all software and hardware changes on every machine in a network.

Employment

Mobile Engineer
Hollaback! (via Toptal)
2015 - 2015
- Created a hybrid HTML5 mobile app from scratch for Android (https://play.google.com/store/apps/details?id=org.ihollaback.android&hl=es_419) and iOS (https://itunes.apple.com/us/app/hollaback!/id379866261?mt=8).
- Designed and implemented business logic in JavaScript following design patterns and best practices.
- Deployed builds to production for Android and iOS using TestFlight and Google Play.
- Integrated native plugins like geolocation, contacts, and keyboard.
- Integrated Facebook native login and Google Maps.
Technologies: AngularJS, Ionic, Sass, JavaScript
Front-end Software Engineer
Kimono (via Toptal; https://usekimono.com/)
2015 - 2015
- Redesigned chat workflow for sending and receiving messages.
- Created the mobile version using Ionic Framework.
- Refactored and designed the OOP model.
- Implemented Algolia search API.
- Improved performance on mobile versions.
Technologies: AngularJS, Ionic, Cordova, Android, iOS HTML5, CSS3, JavaScript
Java DevOps Consulting
L2 (via Toptal)
2014 - 2014
- Converted 5 Java projects to Maven projects.
- Designed and implemented a configuration module to support multiple environments using Typesafe/Conf.
- Set up automatic builds on Jenkins with GitHub.
Technologies: Java, Maven, Jenkins
Software Engineer
50Cubes
2012 - 2014
- Created back-end server for an ad targeting system for Facebook Games.
- Developed a JavaScript library to serve ads based on game states.
- Designed a real-time metric system on HTML5 for showing user conversions.
- Created a Java back-end server for a Space Pirates game. Integrated it with Android and Facebook.
- Managed AWS to support all systems, including Handling databases, fail-over, and performance.
Technologies: Java, Python, PHP, JUnit, PHPunit , Jasmine, Spring, JavaScript, MySQL, Redis
Software Engineering Tech Lead
InvGate
2009 - 2012
- Created a multi-platform client-server application to control hardware and software changes over the whole network.
- Developed a multi-platform client application on C++.
- Implemented high concurrency to handle all changes on thousands of computers.
- Managed the team and development.
- Made the back-end to scale and processed huge amounts of data.
Technologies: C++, PHP, HTML5, MySQL, Memcached, Jenkins, PHPUnit, Java
C++ Developer
JDB
2006 - 2009
- Designed a stock system to control all company assets.
- Created a MFC UI.
- Analyzed and designed MySQL schema.
- Created an installer and deployment tool for control updates.
- Designed the migration to web.
Technologies: C++, MySQL, MFC, Web

Experience

InvGate Assets (Development)
http://www.invgate.com/es/assets/
Assets is a suite of intelligent solutions to manage change and maximize the use of resources and make informed IT decisions.
I designed it from the very start, including creating and deploying software and handling metering, inventory, and change management modules.
Space Pirates (Development)
Space Pirates is a mobile game for Android and iOS built with Unity3D. I designed the back-end server to handle thousands of concurrent users, using Netty and Spring.
BEE (Development)
BEE is an online ad server designed specifically for 50Cubes' games. It was custom built to allow us to flexibly optimize the ads being served in our various games.
It was made on PHP, MySQL, Redis, HTML5, JavaScript, and Python.
Hollaback! (Development)
https://play.google.com/store/apps/details?id=org.ihollaback.android&hl=es_419
iOS: https://itunes.apple.com/us/app/hollaback!/id379866261?mt=8
Toptal Mentor
Sergio 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. Sergio 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.

Skills

Languages
Java, JavaScript, HTML5, EcmaScript 2015 (ES6), PHP, TypeScript, ES7, C++, SQL, Xtend, SASS, C, CSS, Scala
Frameworks
Ionic, Cordova, AngularJS, Angular 2, Ionic 2, Express.js, Bootstrap, Play Framework, Mocha, Selenium, Jasmine, Redux, Symfony2, Laravel, Netty, Hibernate, Spring
Libraries/APIs
Google Maps, Facebook API, Node.js, RequireJS, Socket.IO, jQuery, YouTube API, RxJS, Twitter API
Tools
Jenkins, Bower, Maven, NPM, Git, Grunt, Gulp.js, Karma, Google Analytics, Mercurial, SVN, SBT, Babel
Paradigms
Object-oriented Design (OOD), Test-driven Development (TDD), Model View Controller (MVC), Functional Reactive Programming, Model View Viewmodel (MVVM), Reactive Programming
Platforms
Hybris, Linux, Ngrx, Android, Mac OS X, Windows, Parse, Firebase
Storage
NoSQL, MySQL, MongoDB, Memcached, Redis, SQL Server, Amazon Cloud Front
Misc
Single-page application, Open Source, System Administration, Architecture, HTML5 Mobile Apps, SaaS

Education

Master of Engineering degree in Information Systems Engineering
National Technological University - Buenos Aires, Argentina
2005 - 2012

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