Software Developer
2014 - PRESENTSpringboard 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, RedisSenior Web Developer
2012 - 2014Caribbean 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.jsSoftware Developer
2011 - 2012Medullan- 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 FrameworkTeaching Assistant
2008 - 2011The 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, RacketEntry-level Software Developer
2007 - 2007Teleios Systems- Built SMS-based applications using their proprietary technologies.
- Developed a C# API to control SMS messaging devices.
Technologies: C#Java Game Developer
2006 - 2007Parodice Games- Ported Quickit (now called PG-Cricket) from QBasic to Java.
Technologies: Java, QBasic
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 RetailRuby, JavaScript, ES6, CoffeeScript, Backbone.js, React, Redux, PostgreSQL...
- Caribbean IdeasRuby, Rails, Sinatra, PHP, MySQL, PostgreSQL, Heroku, AWS, Ionic...
- MedullanBackbone.js, .NET, Telerik, Groovy, Grails, Spring Framework
Experience
- Linux 6 years
- JavaScript 5 years
- Ruby 4 years
- PostgreSQL 4 years
- React 2 years
- Redux 1 year
- Python 1 year
- Django 1 year
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
Experience
- Whitespace Interpreter (Development)https://github.com/dwayne/whitespace-python
A Whitespace interpreter written in Python.
- Tic-tac-toe (Development)https://github.com/dwayne/xo-python
A Python CLI game and library for Tic-tac-toe.
Skills
Languages
JavaScript, Ruby, ECMAScript (ES6), C, PythonTools
SiteFinity, Atom, Vagrant, Git, AnsiblePlatforms
Linux, Docker, AndroidFrameworks
Redux, DjangoLibraries/APIs
React, jQueryParadigms
Functional Programming, Object-oriented Programming (OOP)Storage
PostgreSQL, Memcached, RedisOther
RESTful APIs
Education
- Master of Philosophy degree in Mathematics2008 - 2011University of the West Indies - Trinidad & Tobago
- Bachelor of Science degree in Computer Science & Mathematics2004 - 2008University of the West Indies - Trinidad & Tobago
