Born in Český Krumlov, after graduation from a secondary school in Kaplice he was admitted to Faculty of Law, Charles University in Prague. He became an official of Socialist Youth Union and a member of Communist Party of Czechoslovakia. On 13 November 1989 communist daily "Rudé právo" printed on its front page a group photo of Socialist Youth Union officials including Sekyra. After the Velvet Revolution he became a partner in the law office of professor Milan Bakeš, where he focused on restitutions of real estate seized by the communists after coup d'état in 1948. In July 1992 Sekyra co-founded a real estate agency and gradually became involved as developer and investor in several real estate projects, including refurbishments of pre-fabricated paneláks. In April 1999 he named his real-estate development company SEKYRA Group.