Mahzyar is the kind of frontend engineer who reads the rendered output the way other people read code. The motion timing on a hover state. The way a page settles after it loads. The focus ring on a focusable element nobody else noticed was missing.
On engagements he owns the frontend end-to-end and tends to be the one who pushes back on design when it would compromise accessibility, or who pushes back on engineering when it would compromise the way the product feels to use.