From pixel + -er.
pixeler (plural pixelers)
- (computing, slang, rare) A graphic artist who works at the pixel level.
1999, Adrian Dunn, “Re: Using a scanned picture in your demo”, in comp.sys.ibm.pc.demos (Usenet):You can always find musicians. There are more trackers than coders, pixelers, organizers, couriers, and designers combined.