Moses
Numbers 8:4ESV·traditional attribution

And this was the workmanship of the lampstand, hammered work of gold. From its base to its flowers, it was hammered work; according to the pattern that the LORD had shown Moses, so he made the lampstand.

Matthew Henry Presbyterian @wholebiblehenry

Directions were given long before this for the making of the golden candlestick (Exo 25:31), and it was made according to the pattern shown to Moses in the mount, Exo 38:17. But now it was that the lamps were first ordered to be lighted, when other things began to be used. Observe, 1. Who must light the lamps; Aaron himself, he lighted the lamps, Num 8:3.

Commenting on Numbers 8:1-4

John Gill Reformed Baptist @doctorgill

And this work of the candlestick was of beaten gold,.... As it is also said to be; See Gill on Exo 25:31; and See Gill on Exo 25:36, unto the shalt thereof, unto the flowers thereof, was beaten work; of which, see Exo 25:31, according unto the pattern which the Lord had showed Moses; when on Mount Sinai with him: so he made the candlestick...

Geneva Bible Notes Reformed @genevanotes

And this work of the candlestick [was of] beaten gold, unto the shaft thereof, unto the flowers thereof, [was] beaten work: according unto the pattern which the LORD had shewed Moses, so he made the candlestick. (b) And not set together of various pieces.