Haus began her fashion career professionally while she was at Spoon Magazine, a luxury lifestyle publication she co-founded with husband and creative director, Jason Alkire. As the editorial director, Julie styled fashion and home editorial features working with top design houses such as Hermés, Tiffany & Co, Amsale, and Vera Wang. Leading luxury advertisers such as BMW, Barney's NY, and LVMH also supported the magazine.

Before long, Haus became eager to fulfill her aspirations of becoming a professional designer. Haus' goal was to create a ready-to-wear clothing line for women who shared her appreciation for uniqueness, femininity and intricate tailoring. Haus' designs quickly became known for their immaculate craft-work and impeccable fit and her style became a distinct fusion of old and new. Even today some pieces have her direct handwork on them.

In the Fall of 2010 the company opened the first retail store in New York City at 458 Broome Street in the heart of SoHo. Julie and Jason, now partner and husband, can randomly be found there working with clients.