Highly-rated Flitcroft took charge at Oakwell just before New Year after Keith Hill was sacked by the South Yorkshire club.
In that time he has won 10 out of 16 games and lost just three, and has guided Barnsley to the FA Cup quarter-finals and out of the relegation zone in the Championship.
However, Flitcroft only put pen to paper on a deal taking him to the summer late last week and he did not want to take the focus off his charges.
"I am pleased to have got the contract thing out of the way, and I am delighted to have signed," he told Sky Sports.
"As I have said before, your past experiences bring you to this point in time and I am very happy with how things have gone, and everyone at the club is pulling in the right direction.
"The players have reacted well, but the hard work has only just begun and we all realise that."
The current deal runs until the end of the season and, asked about beyond the summer, Flitcroft added: "That is something that will be discussed at an appropriate time."