Freelance UX Researchers in Los AngelesFreelance UX Researchers in Los AngelesDIEM — Health & Wellness App Product Development
I founded and led the development of DIEM, a multi-year health and wellness platform designed to bring nutrition, fitness, lifestyle guidance and personalized wellness information together in one experience.
The idea was to go beyond a basic calorie tracker or workout app. DIEM was designed to understand the individual user—their goals, activity level, nutrition, health conditions, allergies and other profile information—and use that data to provide more relevant daily guidance.
My role covered virtually every part of the product and business development process. I worked closely with professional software developers to define features, workflows, functionality, user experience, testing requirements and ongoing improvements. The developers handled the programming, while I directed what the platform needed to do and how the overall system should work.
I also hired and worked with licensed dietitians, physicians and other health professionals to develop the wellness information behind the platform. That content was incorporated into formulas, rules and logic designed to provide personalized recommendations to users.
DIEM included features such as personalized daily regimen items, nutrition tracking, exercise tracking, health conditions, allergies, goals, reports and wellness recommendations. Users could select goals such as losing weight, getting fit, improving overall health, toning, gaining weight or maintaining their current condition.
The platform was also designed with a professional side in mind, allowing trainers, coaches and health professionals to eventually review user information, provide guidance and work more closely with their clients.
Beyond the product itself, I was involved in branding, competitive research, UX direction, content development, marketing, social media, business strategy and commercialization. The larger business model included consumer subscriptions, professional accounts, corporate wellness programs and potential white-label licensing.
DIEM was a substantial multi-year product-development project that brought together technology, professional wellness content, user experience and business strategy. It demonstrates my ability to take a complex idea, define how it should work, coordinate the right specialists, and develop it into a structured product with a clear path toward commercialization. Increasing App Engagement by Simplifying Trip Planning and Ticketing for Metrolink Riders
Metrolink’s mobile app is a key way riders buy tickets—but many found it confusing, limited, and frustrating to use. Important tasks like choosing the right ticket, finding routes, and tracking trains weren’t clear or fully supported, leading to wasted time, mistakes, and lower app usage.
As the sole designer, I led a 3-month redesign focused on making the app more useful beyond just ticket purchasing. I clarified complex ticket information, simplified the buying process, and introduced key features like route recommendations, train tracking, and schedule checking—all designed to help users plan their trips with confidence.
After two rounds of user testing and iteration, user satisfaction significantly improved. The likelihood of users returning to the app increased by 37%, and overall experience ratings became more positive. This project demonstrated how clearer content, better structure, and the right feature set can turn a frustrating tool into one riders actually want to use. 
