As a developer I feel my career advancement stagnating in its current trajectory.

This feels silly to ask, but is there merit to obtaining a masters degree as a software/design engineer to get to staff level one day?

My gut says experience and street cred matter way more but I'm curious what others think of the ROI.

father, husband, css golfer, ux engineer, silently defining variables as /sdv sdv.wtf

To be honest, even if you get the masters’s degree you’d still need the experience and street cred to along the way 
I personally feel nowadays it’s not about educational qualifications anymore, it’s about what you’re really capable of doing 
And the quality of your services