My background is in health tech, where the stakes of getting design wrong are higher than most. I led design across three platforms for U by Prodia, Indonesia's largest clinical laboratory, serving over one million users. I also designed the Biological Age feature for Elfie, a global health app available in 35 countries, validated through a Maze usability test with 84 testers, scoring 8.3 out of 10 overall and 7.8 out of 10 for motivation to change behaviour.