"I am very happy," Julien told the official site, "For me it has always been a dream to play in the Premier League and now that dream is coming true. West Ham United is a great club and I cannot wait to enjoy this experience.
"Things happened very quickly in the past few days. As soon as I was told that West Ham wanted to sign me, I was very happy and saw it as a wonderful opportunity."
"The Chairman, Mr Magnusson, is a very passionate man and has a lot of ambition. I believe that he will bring great success to West Ham and it is very exciting to think about being a part of that."