In this post talk about and how I applied user-centered design for a complex and feature-rich language technology system. I successfully designed for the needs of the over 200k consumers by remembering all the people - translation specialists - that I have met in the past year and who have shared with me what is crucial for them and what makes them more efficient. Since I have never been a translator or a translation manager, it was crucial for me to be able to empathize with the challenges that they are facing every day and it directly impacted my ability to advocate for them in design meetings and product reviews.