Donald MacLellan, Developer in Glasgow, United Kingdom
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Donald MacLellan

Verified Expert  in Engineering

Software Developer

Glasgow, United Kingdom
Toptal Member Since
September 26, 2016

Donald is a highly skilled full-stack developer with over fifteen years of experience implementing innovative and cutting-edge web­-based solutions in a variety of fields. He has complete technology experience from front to back end as well as excellent full cycle development experience.


Fantasy Sports Limited
Redis, Galera Cluster, MariaDB, SaltStack, AngularJS, Node.js, Laravel, PHP
SaltStack, Galera Cluster, MariaDB, Redis, SlickGrid, Node.js, Laravel, PHP
Sports Rated
MySQL, Angular, CodeIgniter, PHP




Preferred Environment

Git, Angular, Node.js, PHP, Sublime Text, Linux

The most amazing...

...project I've contributed to is SuperLobby, involved from concept to establishment as the premier contest aggregator in daily fantasy sports.

Work Experience


2016 - 2016
Fantasy Sports Limited
  • Provided a full product revamp covering every aspect of the business, including the name, corporate identity, product offering, a new technology platform, and codebase as well as a new dev team.
  • Architected and designed the software and system.
  • Created PHP front and back­-end sites built in Laravel with a portable PHP service layer.
  • Designed Redis servers and Node.js apps to manage real­-time elements of the system.
  • Created a redundant platform fully managed by SaltStack configuration management.
Technologies: Redis, Galera Cluster, MariaDB, SaltStack, AngularJS, Node.js, Laravel, PHP


2014 - 2016
  • Handled the full development life cycle of the site from initial concept through to establishing it as the premier contest aggregator and the daily fantasy sports industry de facto standard resource for independently verified data.
  • Created a responsive PHP­ based website in Laravel with web sockets to carry real­-time data written in Node.js.
  • Built a SlickGrid JS front-end to allow the quick display and filtering of thousands of contest results instantly.
  • Created Node.js apps to scrape and Redis DB to store the real-­time data that powers the service.
  • Automated code deployments and platform management via SaltStack.
Technologies: SaltStack, Galera Cluster, MariaDB, Redis, SlickGrid, Node.js, Laravel, PHP


2013 - 2014
Sports Rated
  • Created visually engaging data­-intensive front­-end tools built in AngularJS.
  • Created a custom JavaScript heatmap that could represent positive and negative values.
  • Created a reporting system using JavaScript graphing libraries so users could easily track their performance.
  • Screen scraped odds data from various sources using the Python library Scrapy.
  • Created a dynamic odds matrix that enabled users to select the best value option for their selected criteria.
Technologies: MySQL, Angular, CodeIgniter, PHP

Software Developer

2011 - 2013
Ogilvie Communications
  • Developed the front-end of Ogilive Communications' network monitoring tool.
  • Created a web­-based JavaScript drag-n-drop UI using Raphael.js that allows the user to create a network map of their network devices.
  • Set up and maintained a variety of high­-availability and high­-volume websites.
  • Investigated the source of online abuse and piracy for clients of Ogilvie Communications and reported the results to the relevant authority.
  • Found and investigated intrusions into exploited vulnerabilities for the clients of Ogilvie Communications.
Technologies: NetBSD, Perl, CakePHP, JavaScript, PHP


Created an experimental website that focused on new ways to map music and the relationships between artists. Technology used included jQuery, jQueryUI, JavaScript InfoVis Toolkit, CakePHP, PostgreSQL, Musicbrainz, and various web APIs including Flickr, YouTube, Wikipedia, and


HTML, CSS, PHP, JavaScript, YAML, Sass, CSS3, HTML5, Python, Bash, Perl


Laravel 5, Laravel, JSON Web Tokens (JWT), Bootstrap 3, Bootstrap, CodeIgniter, PHPUnit, Scrapy, AngularJS, Angular, Express.js, CakePHP


SlickGrid, Socket.IO, REST APIs, jQuery UI, jQuery, Raphaël, PhantomJS, Node.js, Doctrine, Puppet.js


MaxScale, New Relic, Rackspace Cloud, WordPress, Ubuntu, Linux, Docker, Amazon Web Services (AWS), Solaris, FreeBSD, NetBSD


Icecast, Load Balancers, Pub/Sub, WebSockets, Galera Cluster


Slack, Firebug, Gulp, Mercurial, Git, Bower, Composer, PM2, AsgardCMS, Apache, SaltStack, Sublime Text, Subversion (SVN)


RESTful Development, Responsive Web Design (RWD), Responsive Development, Responsive, REST, Agile Software Development


PostgreSQL, MySQL, Redis, MariaDB, Microsoft SQL Server

1995 - 1999

Bachelor of Engineering Degree in Electronics with Music

University of Glasgow - Scotland