Sini is an architect. She was born in Finland and has lived most of her life in the United States. Currently, she lives in London, England. Her multinational background provides inspiration for her work. She skillfully maneuvers the design process to create unexpected and beautiful spaces.

Studio Kamppari was established in 2013. The studio provides design consulting and architectural services. Sini's professional experience was cultivated at Cary Bernstein Architect, Miller Hull, and Olson Kundig Architects. She has worked on residential, academic, and commercial projects in North America, Europe, and Asia. Her professional experience spans the range from summer cottages to the world's largest pedestrian border crossing.

Sini has a Bachelor's degree in architecture from MIT (2002) and a Master of Architecture degree from Yale (2007).