I'm Dennis Cortés, a designer that codes, teaches, and makes music.

I currently lead the product design team at Mothership, produce music as Cordio, make videos, design for coffee at Taste Notes, make icons at OS Icons, work on ideas at Trademarked, and run my Patreon.

I specialize in product design for both the web and mobile apps. My focus is in design leadership, visual design, user experience, and design systems. I also code for the web with a focus on React, CSS architecture, and component systems.

I produce music under the alias Cordio, and create tracks for films, shows, and podcasts. Listen to all my music anywhere you stream music, or snag some on my Bandcamp.

In my spare time I stream video games, create videos on design, music production, tutorials, and more! I also curate inspiration through my blogs Illustree and Trademarked.



Beats to design and code to

You know those lofi beats to study and chill to videos with the girl at her desk? I made one to design and code to with all my music! It's royalty free, so you can use it on streams and as background music.

Recent Work


My Portfolio

Anything I have been able to share can be seen here including both work and side projects that I've shipped.


Taste Notes

My current main project outside of full-time work. Your hub for everything coffee—a place to track, review, share, buy, and brew all in one place. Coming later this year.



My current full-time job, where I lead the product design team to ship things. I've worked on the brand, marketing site, and the product while hiring a design team. We're currently building our new product and system from the ground up.


OS Icons

A set of custom iOS icons I made all from scratch to make your iPhone more streamlined, sleek, uniform. Over 100+ icons to mix and match, free setup guide, and free wallpapers included as well!



A blog, store, and parent company for all my side projects. We make apps, apparel, accessories, and run our blog of over 350,000 members.



A previous full-time job, I worked on everything from our website to our product. I shipped many features at Dave including our design system, Dave Bank, advances, our first web app, a new user onboarding, our marketing site, and more.



A previous full-time job. I worked on their new website as well as worked on projects with Google, Facebook, Uber, Keller Williams, Prudential, and more.


Keller Williams

A web and mobile product that helps people find, buy, and sell homes. We even designed neighborhoods, a full home buying guide, and more. I worked on this as a product designer at MetaLab.



A product that aims to replace those crappy existing internal school systems. I worked on this as a product designer at MetaLab.


The Gift Atlas

A collective gift giving guide tool to help others buy the perfect gift for anyone. An abandoned side project designed and coded by yours truly.


My Coffee Blog

My personal blog about coffee methods, roasts, and shops that I've tried and rated. Designed and coded by yours truly.


Keller Covered

A product that helps people create and compare quotes from all of the top insurances. I worked on this as a product designer at MetaLab.



A tool that creates randomized prompts for artists and illustrators to use. A side project designed and coded by yours truly.



A product that helps contractors get accurate home reports and track their projects. I worked on this as a product designer at MetaLab.



A fun experiment and attempt at making a resource for remote workers that I designed and coded.



A resource and showcase for illustration inspiration that I started back in 2013.



A life-tracking tool I was working on that ended up being too advanced for me to create alone.




A place where I used to house all my side projects. Obsolete now, but still love the site I designed and coded for it.



The Rate of Change

My personal blog that I've written 100+ articles for over the past few years.


Uncle Kragers

A salsa tracker app for homemade salsa in Nashville that I designed at one of my first design jobs in 2014.


Twelve Ounce

Coffee subscription app for unlimited coffee at coffee shops in Nashville. I designed everything from the app to the illustrations, even down to the internal dashboards for coffee shops.


Let's work together


Dennis Cortés
Designer that codes, teaches, and makes music