One of my primary responsibilities was To build and maintain a functional UI/UX frontend sub-group within the API Portal team that can scale into a standalone team that provides UI/UX services. Our first major project was to create a developer portal (DevHub) that allowed developers worldwide to use Vantiv's API's.
Demo mock: https://asdilo.github.io/2016devhub/
Vantiv Data Insights was another major project for me and the dev team. I designed an application to help data analyst track and understand how their users and user groups were spending.