tinkerer
nounUK /ˈtɪŋ.kər.ər/
US /ˈtɪŋ.kɚ.ɚ/
A tinkerer is someone who likes to fix or make things by trying out ideas.
My grandpa is a tinkerer who built a little robot out of old parts.
OTHER MEANINGS
2. A person who makes small changes to something to improve it.
She is a tinkerer who keeps adjusting her bike to make it faster.
3. Someone who enjoys taking things apart to see how they work.
The young tinkerer opened the broken clock to see the gears inside.
4. A person who works in an unskilled or casual way at small jobs.
He was a tinkerer around the house, always fixing a loose handle or a squeaky door.