Flávio Juvenal da Silva Junior, Developer in Recife - State of Pernambuco, Brazil
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Flávio Juvenal da Silva Junior

Verified Expert  in Engineering

Web App Development Developer

Recife - State of Pernambuco, Brazil
Toptal Member Since
September 11, 2014

Flávio is an experienced full-stack software developer who has worked for companies and startups. He has a particular interest in Python and Javascript, but also has contributed to projects using Java, Haskell, C, C++, Scala, and PL/SQL. Along with two partners, he works at Vinta Software Studio.


Vinta Software Studio
PostgreSQL, Trigger.io, Ember.js, JavaScript, Django, Python
PostgreSQL, Trigger.io, JavaScript, Ruby on Rails (RoR)
Dr. Busca
Ubuntu Server, Git, Redis, MySQL, jQuery, JavaScript, Django, Python




Preferred Environment

Git, Sublime Text, Ubuntu

The most amazing...

...a tool to crawl open source projects and extract code metrics from them.

Work Experience


2013 - PRESENT
Vinta Software Studio
  • Built a web dashboard with charts for a software security company to manage vulnerabilities.
  • Built the full-stack of a loyalty program for a retail company, including back-end algorithms for reward detection, a web dashboard, and a mobile app.
  • Created a Trigger.io (mobile web platform) native module for using sockets with Javascript code.
  • Created a JavaScript Grunt plugin for running tasks after a HTTP server is ready at a certain port.
  • Created a Chef cookbook with Vagrant for provisioning and deploying a Django server equipped with PostgreSQL, Nginx, and Celery.
Technologies: PostgreSQL, Trigger.io, Ember.js, JavaScript, Django, Python


2013 - 2013
  • Designed the webpage and mobile app for youjudge.la, an app for judging UFC fights.
  • Designed the webpage and mobile app for barganhou.la.
Technologies: PostgreSQL, Trigger.io, JavaScript, Ruby on Rails (RoR)

Co-founder and Web developer

2012 - 2012
Dr. Busca
  • Developed a web app for users to find doctors and make appointments online.
  • Implemented a redis-simple-cache, a Python module for a Redis-based cache to return values.
  • Administered servers using Ubuntu Server, MySQL, and Redis.
Technologies: Ubuntu Server, Git, Redis, MySQL, jQuery, JavaScript, Django, Python

Vinta Software Studio Portfolio

This slideshow is Vinta Software Studio's portfolio, which displays our biographies, work examples, and methodologies of software design.


An open-source, Meteor-based app that provides an alternative visualization of Facebook Events. Built to experiment with the reactivity features of Meteor.


A tool for crawling GitHub projects to extract code metrics from them.

What HN says

A Chrome extension that shows the current page's score and links back to the discussion page on Hacker News.


Simple Redis-based cache for storing results of Python function calls, JSON-encoded strings, or HTML.


Trigger.io module for using TCP sockets with JavaScript.


Java, Python, HTML, JavaScript, SQL, HTML5, CSS, CSS3, Sass, C#, C++, C, Scala, Ruby, Less


Django, Django REST Framework, .NET, Ember.js, Ruby on Rails (RoR)


Rapid Prototyping, Object-oriented Programming (OOP), Imperative Programming, KISS, Agile Software Development, Object-oriented Design (OOD), Top-down Programming, Promise, Model View Presenter (MVP), Functional Programming, Model View Controller (MVC), DRY, Pair Programming, Unit Testing, Test Automation, REST, Distributed Computing, Parallel Computing, Responsive Web Design (RWD), Test-driven Development (TDD), Socket Programming, MapReduce, Design Patterns


HTTP, Web App Development, Ajax, Prototyping, Minimum Viable Product (MVP), Ubuntu Server, SMTP, Caching, OAuth, CORS, UI Testing, Lean Startups, Multithreading


Django ORM, Requests, Foursquare API, Facebook API, jQuery, South, Mandrill API, Ember Data


Celery, GitHub, Git, Sublime Text, Adobe Photoshop, Chef, Vagrant, Grunt, Bower, Make


Amazon Web Services (AWS), Ubuntu, Google App Engine, Linux, Trigger.io, Meteor, Heroku, Parse, Android, Windows, Mandrill


PostgreSQL, MongoDB, MySQL, Redis

2008 - 2012

Bachelor's Degree in Computer Science

Federal University of Pernambuco - Recife, Brazil