Wilker is available for hire

Wilker Lúcio da Silva

Verified Expert in Engineering

Software Developer

Location

Recife - State of Pernambuco, Brazil

Toptal Member Since

November 12, 2015

Wilker started on web development early in his life (from around 2000) and since then has been following the evolution of the web - the beginning of the Ajax era, the rise of jQuery, the avalanche of MVC frameworks, and when everybody thought Angular would take over the world. And now React is repeating that story. But what he loves most is to be at the edge of the software development world, finding out new and better ways to create solutions.

jQuery Chrome Extensions CSS PHP Agile Software Development Ruby on Rails (RoR)Ruby Unit Testing MacOS Clojure React MySQL PostgreSQL Redis Less Safari Extensions Firefox Extension

Portfolio

Woboinc

PostgreSQL, React, AngularJS, jQuery, CoffeeScript, JavaScript...

Kajabi

Sass, PostgreSQL, CoffeeScript, JavaScript, Ruby on Rails (RoR), Ruby

Bitzesty

MongoDB, jQuery, JavaScript, Ruby on Rails (RoR), Ruby

Experience

CSS - 15 years HTML - 15 years JavaScript - 12 years jQuery - 10 years Ruby on Rails (RoR) - 6 years Unit Testing - 5 years Clojure - 2 years React - 1 year

Availability

Part-time

Preferred Environment

Clojure, Git, IntelliJ IDEA, MacOS

The most amazing...

...algorithm I've created can detect a repeating background pattern in an image running on the browser in a few seconds.

Work Experience

Web Developer

2012 - PRESENT

Woboinc

Rebuilt an interface from Rails to a single-page application with React.js.
Worked with massive data import for a client book catalog.
Created a browser extension for webpage annotation using Angular.JS.
Created a validation engine plugin for jQuery.
Integrated Cameratag service for user camera recording on the website for a teaching solution.

Technologies: PostgreSQL, React, AngularJS, jQuery, CoffeeScript, JavaScript, Ruby on Rails (RoR), Ruby

Web Developer

2010 - 2011

Kajabi

Created a theme editor in JavaScript for the Kajabi custom templates enabling most of the CSS properties to be edited in a friendly way for the common user.
Implemented a Russian-doll-style caching strategy to optimize the site speed.
Integrated payment solutions with PayPal.

Technologies: Sass, PostgreSQL, CoffeeScript, JavaScript, Ruby on Rails (RoR), Ruby

Web Developer

2010 - 2010

Bitzesty

Created a group purchase website with Ruby on Rails and MongoDB.

Technologies: MongoDB, jQuery, JavaScript, Ruby on Rails (RoR), Ruby

Web Developer

2009 - 2010

Caju

Created a system to manage a hospital customer network in Ruby on Rails.

Technologies: PostgreSQL, MySQL, JavaScript, PHP, Ruby on Rails (RoR), Ruby

Web Developer

2008 - 2009

Fishy

Created a reusable CMS system that was used in dozens of different websites with custom modules on each one.
Created an MVC framework from scratch in PHP.

Technologies: MySQL, PHP

Web Developer

2004 - 2006

Faculdade dos Guararapes

Created an internal message system (email-like) with PHP.
Built a system to manage reservation schedules for college equipment.
Developed a CMS to manage the college website.
Programmed software to print checks using C#.
Wrote a live chat application for online helpdesk using PHP, JavaScript, and Ajax.
Created an app in Java to receive and display notifications from the internal systems.
Built a virtual file manager using PHP and Adobe Flex.

Technologies: Flex, C#, Java, MySQL, JavaScript, PHP

Experience

Patterny

https://github.com/wilkerlucio/patterny

Patterny is a tool for extracting the minimum pattern of an image, can be used to extract background images to use in the background.

Mazes Playground

http://wilkerlucio.github.io/mazes/

From the book "Mazes for Developers," the book teaches interesting maze algorithms and their implementation in Ruby, this project of mine has some of those ported to ClojureScript and running interactively in the browser.

Kajabi

http://www.kajabi.com

Kajabi is a platform for content producers, a place where you can post your videos and can charge people for it, Kajabi provides the platform to post, manage subscriptions and provide communication for the producer and the content consumers of it.

Woboinc Website

The new institutional website for Woboinc, I built all the front-end part of it.

Barrier

https://github.com/wilkerlucio/barrier

A test framework that embraces promises.

Composed Validations

https://github.com/composed-validations/composed-validations

JavaScript framework for plain object validations, works on browser and node.js support sync and async validations.

Bow and Arrow

https://github.com/wilkerlucio/bow_and_arrow

A remake of an old win 95 "Bow and Arrow" game written with Ruby and Shoes.

Geometric Playground

https://github.com/wilkerlucio/pencil-draw

Some experiments with drawing optimizations and other geometric goodies.

Skills

Libraries/APIs

jQuery, React, Compojure, Facebook API

Tools

IntelliJ IDEA, Git, Adobe Photoshop, Sketch

Languages

HTML, JavaScript, PHP, Ruby, CSS, Clojure, CoffeeScript, Java, C#, Less, Sass

Paradigms

Agile Software Development, Functional Programming, Unit Testing, Object-oriented Programming (OOP)

Frameworks

ClojureScript, Ruby on Rails (RoR), Flex, AngularJS

Platforms

MacOS, Falcor

Storage

Memcached, MongoDB, PostgreSQL, MySQL, Redis

Other

Chrome Extensions, Datomic, Firefox Extensions, Safari Extensions

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