Jonathan Underwood

jonathan [at]
GitHub: jyunderwoodLinkedIn: jyunderwood

Full-Stack Developer in Dallas, Texas

I'm a full-stack developer who enjoys building well tested applications, mobile APIs and scaling Ruby on Rails projects to handle millions of users. I've also worked on other backend projects in PHP, Python and ASP.NET.

On the front-end I value clean responsive designs and know when to use a JavaScript frameworks like React.js or Ember.js or apply JavaScript sparingly as progressive enhancements to static pages.

I contribute code and documentation to projects on GitHub as well as maintain open source repos of my own.

Concepts and Dev Stacks


Key Ring, Dallas, TX

Nov 2014 - Present

  • Reworked API endpoints with queuing and caching for better throughput resulting in a 2x cut in response time for millions of users
  • To help facilitate scaling, also automated the provisioning and deployment of our AWS infrastructure with Ansible
  • Developed a client-side JavaScript version of Key Ring sales and lists for our sales linking and list sharing campaigns
  • Worked with marketing and design teams on email marketing campaigns and the new homepage design
  • Lead the development of a crawling service to scrape retailer circular content
  • Added circular images to the search functionality with an OCR and machine learning categorization pipeline
  • Setup a CI pipeline and setup centralized logging with Logstash, Elasticsearch and Kibana

Application Developer
AutoRevo, Dallas, TX

Nov 2013 - Sept 2014

  • Worked on a large multitenant SaaS for car dealerships with SOA codebases in Ruby on Rails and ASP.NET
  • Built services that interfaced third-party REST and SOAP APIs like the ebay API for automated posting of vehicles
  • Lead the development of a real-time chat service and embeddable widget for dealership websites as a lead-gen addon
  • Customized Bootstrap to integrate with our legacy stylesheets and layouts while moving towards responsive designs
  • Worked on a marketplace crawling and analytics system that processed millions of active vehicles a day

Web Developer
Chacon Autos, Dallas, TX

May 2011 - Nov 2013

  • Developed an inventory management system that integrated third-party services such as Blackbook and GoldStar GPS tracking
  • Worked on ASP.NET MVC apps for sales reporting and to help managers make customer credit decisions
  • Built a public-facing Wordpress site and several custom plugins work with our backend apps
  • Created and administered an online advertising strategy and actively worked to improved SEO and decrease goal conversion cost


BA in Journalism
Graduated December 2010

University of North Texas
Denton, Texas