Her role will be to develop the division's digital presence and commences at the start of May.
Commenting on her appointment, Ms Stuckes said: "I'm thrilled to be joining IPC Southbank as digital development director. It has fantastic brands in the women's fashion and lifestyle and home sectors and I can't wait to help build their success in the digital space."
Jackie Newcombe, managing director of IPC Southbank, added: "Julie will be a fantastic addition to Southbank's management team. She is steeped in digital media and is very experienced in building teams to develop new projects.
"Most importantly, she understands how to tap into the strengths that we have within our print brands and translate them into digital opportunities".
IPC Southbank will be unveiling In Style's new website and a new homes portal over the next two months, further building upon its homes sector.
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