Dwayne Crooks

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.

JavaScript Linux C Ruby Python Git jQuery PostgreSQL React.js Django Android Show more

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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.js, 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

Software Developer
Springboard Retail
2014 - PRESENT
- 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
Caribbean Ideas
2012 - 2014
- 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
Medullan
2011 - 2012
- 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
The University of the West Indies
2008 - 2011
- 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
Teleios Systems
2007 - 2007
- Built SMS-based applications using their proprietary technologies.
- Developed a C# API to control SMS messaging devices.
Technologies: C#
Java Game Developer
Parodice Games
2006 - 2007
- Ported Quickit (now called PG-Cricket) from QBasic to Java.
Technologies: Java, QBasic

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), Python, C
Platforms
Linux, Docker, Android
Frameworks
Django, Redux
Libraries/APIs
React.js, jQuery
Tools
Git, Atom, Vagrant, Ansible
Paradigms
Functional Programming, Object-oriented Programming (OOP)
Storage
PostgreSQL, Memcached, Redis
Other
RESTful APIs

Education

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

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