Scott Elstone has signed a one-year incremental contract with Derbyshire.
The 23-year-old, who has previously taken on 12th man duties for England, struck 872 runs at an average of 35 for the second XI last season.
“Scott’s got a big chance now,” head coach Karl Krikken said.
“He’s done well in the second XI this season; he looks a really good pro and has got a lot of talent and good luck to him. I hope this is the start of a long Derbyshire career.”
Amid him being signed, Alasdair Evans has been released with Ben Slater not offered fresh terms at this stage.
Krikken said: “Ally and Ben have worked their socks off this year and the effort they’ve put in makes these decisions very difficult.
“But we have to balance our budgets and we need to tweak the squad ahead of the new season; to do that we have to make some big calls.
“One of those calls is that Ally will be leaving the club and – at present - we’re not in a position to offer Ben a contract either.”