is a Product Designer, Creative Director, and endurance athlete based in Lake Oswego, Oregon.
— Chris Blom
Associate Director of UX
“Mackenna is an empathetic and insightful designer with strong domain knowledge in endurance sports.
It was a joy to have her as part of my team, and I’d be more than happy to work with her again.”
Work Experience
Dexcom
Senior UX Designer - Digital Platform
Feb 2025—present
Remote
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Senior UX Designer - Stelo
Aug 2022—Feb 2025
Remote
UX Lead for Dexcom account creation, login, and profile experiences on the Account Management team. Works with a team of 30+ developers to maintain cross-platform authentication and security for 5 million Dexcom customers.
Designer for Stelo by Dexcom, a new CGM (continuous glucose monitor) designed specifically for people with Type 2 diabetes not using insulin—product launched in the US in August 2024.
On the product team, designing the biosensor companion app for iOS and Android. Shipping monthly.
Wahoo Fitness
Product Designer — Wahoo SYSTM
Nov 2021—April 2022
Remote
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UX/UI Designer — GPS Bike Computers
July 2020—Nov 2021
Remote
Designer for premiere cycling training software, Wahoo SYSTM. Crafted end-to-end UX and UI for new app features and conducted research to define evolving needs of Wahoo athletes. Launched Wahoo X (training subscription service) in Spring 2022.
Crafted assorted graphics used for marketing.
Sole designer for hardware product line consisting of four (4) GPS bike computers. Launched BOLT 2.0 product in May 2021. Designed brand new features (see Custom Alerts) for release across the entire product line, on the hardware device (Android-based) as well as iOS and Android companion app products.
PK (Formerly Lenati)
UX/UI Design Consultant
July 2018—July 2020
Seattle, WA
Design consultant for Microsoft, Tableau, Skechers, and the Pittsburgh Steelers. Created design proposals across B2B and B2C products, with deep expertise in designing for knowledge assessment tools for developers at Microsoft and Tableau.
Specialized in mobile web design for Skechers Plus rewards app.
DEKA Research & Development
UX/UI Intern
June 2017—Aug 2017
Manchester, NH
UX/UI Design Intern for Summer 2017.
Provided UX support including research, planning, and wireframing of for company software projects. Front-end development support for company website.
Visual design support for various project websites, embedded software, and/or smart devices. Print design support for company office print materials.