Promoted to Full Stack Engineer Ⅱ. 

As far as I can ascertain, this approximates to Microsoft's levels 62/63.

For the last 9 months, I've been:
 - Planning, architecting, developing and reviewing epic product features.
 - Overseeing product releases and maintaining products in production.
 - Interviewing candidates for the roles of Senior UX Engineer, Senior Backend Engineer and Senior Fullstack Engineer (we're hiring!)
 - busy.