Collin's Portfolio

Hey, I’m Collin 👋

A Product Designer

About Me

My career has largely centered on one thing: making transactions, billing, and payments feel seamless, trustworthy, and human. At T-Mobile, I lead design work on billing experiences used by over 130 million people, simplifying legacy systems and aligning web and mobile platforms.

Before that, I helped launch a real estate platform from the ground up, led product design at Halo Investing, and supported Citibank’s Generative AI team on service design. Across all of it, I’ve focused on the messy, high-stakes spaces where money moves and trust matters.

I stay plugged into the design world through NYC meetups and events like Config and AWE.

My Portfolio

Resume

You

Hey, I’m Collin 👋

Product designer focused on Transactions and Trust

About Me

My career has centered around: making transactions, billing, and payments feel seamless, trustworthy, and human. At T-Mobile, I lead design for billing systems used by over 130 million people, simplifying legacy platforms and aligning web and mobile.

Before that, I helped launch a real estate platform from scratch, led design at Halo Investing, and supported Citi’s Generative AI team. I’ve focused on the messy, high-stakes spaces where trust matters and money moves.

I stay plugged into the design world through NYC meetups and events like Config and AWE. Currently enrolled in a Growth Design Course.

Product Designer at T-Mobile

Citi and Halo Investing

Based in New York City

Chicago & Medellin

Mentor at Parsons, Brainstation, and University of Washington

Passionate about untangling systems and creating experiences people trust

Side Projects

Sometimes, I work on my own creative projects for fun.

ProjectPlus

An arcade game published for Steam.

ProjectPlus

An arcade game published for Steam.

ProjectPlus

An arcade game published for Steam.

Simplifying Billing for 150M+ Users

Redesigned T-Mobile’s Web and App billing experience to reduce support calls, improve clarity, and set the foundation for predictive AI features.

Why Did My Bill Go Up?

Luxury Real Estate App Design

My friend and I designed and developed a luxury real estate mobile app, resulting in a seven-figure exit from selling the code and IP.

What's it look like?

Incommon Companion

Designed the mobile app to align structure and usability with the web experience.

Check It Out

Ball Blitz!

Joined an indie game project to push my creative skills in new directions. Also, it's fun.

Still Cooking

Re-imagining the Halo Dashboard

Enhance user engagement and efficiency through tailored user journeys, intuitive navigation, and customizable interfaces to improve sales.

See the Dashboard Story

Kind Words

I've been fortunate to work with some pretty great people.

"I worked with Collin for a year on a cross-disciplinary, emerging technology product design team. During this time, Collin flex more deeply into generative research, service blueprints, model, visualizations, and workshop design/facilitation. The resulting insights and stakeholder alignment made him an even better designer, plus strengthen the work of our entire team. Collin is also a natural ambassador for design culture — any design team would be lucky to have him!"

"Collin showed a great ability to not only quickly ramp up (on a complex product), but maintain a high level of intentionality in his work. Juggling well over a dozen use cases Collin created a consistent and scalable design system we'll use for a long time. It was a pleasure working with him!"

"The ideas guy, always pushing us to stay up to date on trends and practices. It’s thanks only to Collin that our site looks like a modern, software documentation site. Collin's strengths that'll bring value to your organization include his passion for innovation, his ability to network with other teams, and his ability to receive feedback professionally."

"Collin was the TA for my UX Design Bootcamp experience at Burlington Code Academy, and he consistently went above and beyond for us. He hosted useful evening workshops on topics like Figma shortcuts, provided valuable feedback on all of our projects, met with each of us individually several times throughout the course, and passed along so many useful resources for us to continue our UX education. He also put so much effort into buoying our spirits when the bootcamp was reaching its maximum intensity. I can’t recommend him enough."