That depends on where the spacecraft lands. The radiation belts rotate faster than the planetmoon so one of the sidestrailing side of Europa gets a lot of radiation while the otherleading side gets relatively little. It also depends if the lander will be a separate spacecraft or a part of the orbiter. If it has to go multiple times through the radiation belt with the orbiter, then it will have to be shielded. On the other hand, if the lander stays in a safe orbit until the planet is surveyed and then is commanded to land it might not need shielding. The final variable is the duration of the mission. I've seen 10 days being mentioned which will probably not need shielding.
There is very little info on the lander, so it's mostly a speculation but from what I've read it appears it will probably not be shielded.
http://www.planetary.org/blogs/guest-blogs/van-kane/20160105-nasa-europa-lander.html
http://www.astrobio.net/news-exclusive/hiding-from-jupiters-radiation/