Kevin Barrios

I built UpperDS end to end at Adbize, a digital signage SaaS for hotels, and continued maintaining it as an independent contractor. It runs across 300+ live screens, with 27 Cloud Functions and Lighthouse scores of 97–100. At CallBotIA™ Spain, I built conversational automation solutions, including an embeddable chat widget, an admin dashboard, and voice and text agents. I also developed the UpperDS TV app for Android TV, where a media cache cut Firebase bandwidth by 90%.