Lee Shaw described it as an "unbelievable feeling" after finishing his job packing boxes in a warehouse to sign for Chesterfield.
The 24-year-old striker, who was a prolific scorer at Grantham Town, penned a two-year contract at the Proact last night with an option for a third year.
Shaw said: "It's an unbelievable feeling. It's a massive club with great fans and when Martin got in contact with me, it was something I couldn't turn down. I had to grab the offer with both hands and make it happen.
"I've been working in a factory for about five years, just packing boxes, which is not the best job to have. Now I'm buzzing to be part of it here and I can't wait to get started. I'll be more than ready when I get my chance - I want this more than anything.
"The facilities are unbelievable, the fans are unbelievable and the pitch looks amazing. I want to to get out onto the pitch to show Martin and the fans what I'm all about and get them back into the Football League."
When asked to describe himself as a player, Shaw commented: "I love to get on the ball and get down the channels, run at defenders and cause havoc, bascically!"
Shaw is set to be among the substitutes in this evening's pre-season friendly at Gainsborough Trinity (7.30pm).
Spireites Digital subscribers can view the full interview here.