Complex sentence: Dominique began working on the Internet of Things in 2005 with Sun Microsystems working on RFID applications, and also did his master's thesis at Lancaster University working on Ubiquitous Computing.
Split into simpler sentences: Dominique began working on the Internet of Things in 2005 with Sun Microsystems working on RFID applications. He continued studying the field with his a master's thesis at Lancaster University on Ubiquitous Computing.