Celtic were left frustrated by the narrow and perhaps undeserved defeat which left them on one point from three games, and they know victory is essential if they are to have any hopes of qualifying out of the group.
However, Germany full-back Jansen believes the visitors' task will be all the more difficult with Hamburg looking to show a more positive side to their game.
"I think we can take a lot from the game at Celtic," Jansen said.
"But now that we are playing at home, the shoe is on the other foot.
"They had to attack in front of their own fans but it will be a different game tonight when we are in front of our supporters and things look good for us.
"Celtic will stay back and play on the counter attack, but we are in a good situation and obviously we want to win and get through."
Hamburg boss Bruno Labbadia tried to prevent any overconfidence among his players, who suffered their first defeat of the season against Borussia Monchengladbach on Saturday.
He said: "This is virtually Celtic's last chance but we know the quality of their players and we have to be at our best to make sure that we win.
"The first-leg victory was very important to us.
"Celtic are going to be compact and go for the counter. They are very good at switching from defence to attack and we have to do the same thing while making sure we don't lose one at the back.
"We have to put them under pressure and with the help of our fans we can do that."
Hamburg 1/2, Draw 3/1, Celtic 6/1