Sofronis Theodosiou was born in Limassol. Graduated from Lanition Lyceum. After the completion of his military service he joined the Hydra Maritime Academy in Greece and then sailed with Greek companies mainly on tankers as deck officer. Before the end of 1994 he moved ashore and joined Hanseatic Shipping as Fleet Personnel officer. During the years after he had the chance to work as Loading Master in Cyprus Petroleum refinery as well as Operations Manager with Arrownaut Shipping. In 2006 he rejoined HSC- Hanseatic Shipping Copany that was renamed in 2008 to BSM- Bernhard Schulte Shipmanagement as Operation Manager.
Sofronis worked his way up to Fleet Personnel Manager. Not limited to his duties in Crewing he was actively involved in promoting the seafarer career within the Cypriot community and at the same time he is the Chairman of the manning and training committee of the CSC – Cyprus Chamber of Shipping.