The 19-year-old will link up initially with the Clarets’ U23 side after securing a fantastic move.
Senior impressed in the National League North and his displays have been rewarded.
“I’m delighted. It’s been a long time coming. I’ve been working hard for it for the last three or four years and it’s finally happened,” said Senior on Burnley’s official website.
“Burnley have put their trust in me, and I’m delighted to be here.
“A lot of people’s routes have been different and mine has been to come up through men’s football with some good clubs.
“I’ve finally found Burnley and I’m delighted to be here.”