Dwayne Crooks, Software Developer in Port of Spain, Trinidad and Tobago
Dwayne Crooks

Software Developer in Port of Spain, Trinidad and Tobago

Member since August 8, 2014
Dwayne is a senior software engineer currently specializing in web application development with Python, Django, PostgreSQL, JavaScript, React and Redux. He has over five years of experience working for companies like Springboard Retail and Caribbean Ideas. He is a passionate craftsman, a lifelong learner, a challenge-seeker, and a determined professional who does whatever it takes to get the job done.
Dwayne is now available for hire

Portfolio

  • Springboard Retail
    Ruby, JavaScript, ES6, CoffeeScript, Backbone.js, React, Redux, PostgreSQL...
  • Caribbean Ideas
    Ruby, Rails, Sinatra, PHP, MySQL, PostgreSQL, Heroku, AWS, Ionic...
  • Medullan
    Backbone.js, .NET, Telerik, Groovy, Grails, Spring Framework

Experience

  • Linux, 6 years
  • JavaScript, 5 years
  • PostgreSQL, 4 years
  • Ruby, 4 years
  • React, 2 years
  • Redux, 1 year
  • Django, 1 year
  • Python, 1 year

Location

Port of Spain, Trinidad and Tobago

Availability

Part-time

Preferred Environment

Ubuntu, Atom, Git

The most amazing...

...thing I've coded is a C implementation of Donald Knuth's Dancing Links algorithm to help me efficiently solve Sudoku puzzles.

Employment

  • Software Developer

    2014 - PRESENT
    Springboard Retail
    • Improved our promotion system by refactoring its DSL and changing the way the custom language is parsed and interpreted.
    • Migrated our Ruby-based asset pipeline to NPM and Webpack.
    • Developed our MailChimp integration.
    • Added support for multi-store multi-jurisdiction tax.
    • Built pivot table support into our reporting system.
    • Implemented bulk item deletion/deactivation.
    • Improved the logging and robustness of our customer background jobs.
    • Added token-based login support to our admin backend.
    • Optimized the Ruby implementation of our item imports system and improved its performance by 2x.
    • Fixed 100+ front-end and back-end bugs.
    Technologies: Ruby, JavaScript, ES6, CoffeeScript, Backbone.js, React, Redux, PostgreSQL, Sequel, RSpec, Sinatra, Git, Jenkins, Vagrant, Docker, Chef, Nginx, Sidekiq, Node.js, Loggly, Webpack, Redis
  • Senior Web Developer

    2012 - 2014
    Caribbean Ideas
    • Developed custom websites, web applications, content management systems, and mobile applications.
    • Built a trivia game.
    • Implemented a social feed that displayed content from our Twitter and Instagram accounts within an infinite scroll.
    • Created an interactive detective game for Facebook to teach people about invasive species within the Caribbean.
    • Built a single-page application, using AngularJS, for dressing avatars in traditional Carnival costumes.
    • Created RESTful APIs as the back-end for mobile apps.
    Technologies: Ruby, Rails, Sinatra, PHP, MySQL, PostgreSQL, Heroku, AWS, Ionic, LocomotiveCMS, RefineryCMS, Django, WordPress, AngularJS, Backbone.js
  • Software Developer

    2011 - 2012
    Medullan
    • Helped to build a single-page Backbone.js application for psoriasis patients.
    • Helped to build the Medicare NewsGroup website using .NET and Telerik.
    • Helped to build a web application for Aetna using the Groovy, Grails, and Spring Frameworks.
    Technologies: Backbone.js, .NET, Telerik, Groovy, Grails, Spring Framework
  • Teaching Assistant

    2008 - 2011
    The University of the West Indies
    • Tutored COMP 1100 - Introduction to Computer Programming I.
    • Tutored COMP 1200 - Introduction to Computer Programming II.
    • Lectured for COMP 2600 - Theory of Computation I.
    • Lectured for COMP 1350 - Mathematics for Computer Science II.
    • Designed course content, set final exam questions, and graded papers.
    • Built an application in Racket to help illustrate how the data structures and algorithms for DFAs, NFAs, and regular expressions could be implemented in practice.
    Technologies: C, Python, Racket
  • Entry-level Software Developer

    2007 - 2007
    Teleios Systems
    • Built SMS-based applications using their proprietary technologies.
    • Developed a C# API to control SMS messaging devices.
    Technologies: C#
  • Java Game Developer

    2006 - 2007
    Parodice Games
    • Ported Quickit (now called PG-Cricket) from QBasic to Java.
    Technologies: Java, QBasic

Experience

Skills

  • Languages

    JavaScript, Ruby, ECMAScript (ES6), C, Python
  • Tools

    SiteFinity, Atom, Vagrant, Git, Ansible
  • Platforms

    Linux, Docker, Android
  • Frameworks

    Redux, Django
  • Libraries/APIs

    React, jQuery
  • Paradigms

    Functional Programming, Object-oriented Programming (OOP)
  • Storage

    PostgreSQL, Memcached, Redis
  • Other

    RESTful APIs

Education

  • Master of Philosophy degree in Mathematics
    2008 - 2011
    University of the West Indies - Trinidad & Tobago
  • Bachelor of Science degree in Computer Science & Mathematics
    2004 - 2008
    University of the West Indies - Trinidad & Tobago

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