I built this app in partnership with my fiance who is a medical resident at UCSF. Residents have variable shifts based schedules and it is often hard to know who is free to hang out at a random hour when you are off work.
It started off as a pet project for an audience of 1 but it ended up being used by the entire residency program at UCSF.
The key technologies I used were:
Front End: HTML, CSS, jQuery
Libraries: datepicker (jQuery), moment.js, papaparse, Bootstrap
API: Amion
Backend: NodeJS
Update: As of Dec 2016, UCSF decided to move away from amion as their scheduler which brought an early death to this project.