The combative midfielder heads to Highfield Road for an initial one-month loan period after impressing in two trial reserve games. Last season the 21-year-old enjoyed successful spells in Division Two with Swindon and Colchester and was seeking first team action at a higher level.
"That is what I was looking for - the next step up," explained Johnnie. "I want more experience, to play at the next level and hopefully then, the ultimate step, to move up and play in the Premiership.
"I went up there and played reserve games for them with a view to going there on loan.
"The manager Gary McAllister wanted to have a look at me because it has been a while since he has seen me play. I went up there to train and play, now I'm going there for a month's loan.
"It was good and went well. I trained with their first team on the Monday and that was good, although it was a bit weird first of all as I've been here for years and it was strange just to go somewhere to train and play a game straight away.
"I played in central midfield and that is where I enjoy playing."
Johnnie agrees that a stint training and playing with a midfielder in the class of McAllister can only help his own game progress.
"I think so, he said to me that he wanted to bring in young players from bigger clubs that have had a good education. Hopefully he is looking for the sort of player I am."
Johnnie Jackson hopes that his loan spell at Coventry City will be a step up towards his ultimate aim of performing in the Premiership.