Oskar Zieta studied architecture at the Szczecin University of Technology and has a doctorate from the Eidgenössiche Technische Hochschule (ETH) in Zürich, where he also worked as a research assistant at the department of CAAD (Computer Aided Architectural Design).
At ETH, Zieta developed the use of digital technology in steel treatment that is called FiDU – Free Inner Pressure Forming. Zieta used FiDU to create inflated steel projects and site-specific sculptures, such as the Seahorse in 2006.
In 2008, Zieta designed the PLOPP stool, one of his most well-known pieces. The stool was first produced by Zieta's company Zieta Prozessdesign, but was later spotted by the Danish manufacturer HAY. It was followed by the Chippensteel chair in the following year.
In 2010 Zieta designed his first large-scale works, the Architonic Concept Space and The Blow & Roll installation for the Victoria & Albert Museum in London. During the same year, Zieta founded his design studio and company in Wroclaw, Poland. In 2017, Zieta created the highest sculpture in a Polish public space, the WIR in Warsaw.
Oskar Zieta has been the recipient of the Red Dot Design Award (2008), the Schweizer Design Prize (2008), the German Design Council Prize (2009), and the Audi Mentor Prize (2011). Zieta has had numerous solo exhibitions around the world and is represented at a.o. Victoria & Albert Museum in London, the Vitra Design Museum in Veil am Rhein, the Centre Pompidou in Paris, and the Museum of Furniture Studies in Stockholm.