Soliman founded Mountain View in 2005, focusing initially on small communities and residential complexes, before shifting its focus to sustainable lifestyle. With over 21 developments in Egypt in its portfolio, Mountain View expanded to Saudi Arabia with the ONE project in September 2024. It recorded over $2 billion in sales in 2024. Soliman is a member of the American Chamber of Commerce in Egypt, the British Egyptian Business Association, the Canadian Chamber of Commerce, and the International Real Estate Federation.