Artificer comes closest. Many players like to flavor their artificers in a technomagic fashion, but that's not necessarily essential to the core concept.
You use your tools as a focus for spellcasting and the entire spellcasting process is tool-flavored. That could be an artillerist artificer who paints his spells into existence.
A bracelet artificer could be using Jeweler's Tools and bracelets are how his preparation mechanics work.