Born in Bordj El Kiffan in Algeria, after studying medieval archaeology at the université d'Aix en Provence, Sintes was appointed assistant curator at the Musée d'Arles in 1984.
He conducted underwater excavations at the port of Apollonia, Cyrenaica and published several articles and books on the art and architecture of Ancient Libya.
Missions of expertise and international collaborations have led him to Tunisia, Algeria, Spain, etc.
He participates in the development of discoveries made in the Rhône by multidisciplinary teams: the Arles bust exhibition for example.
In 2013, Sintes led the project to extend the departmental museum of ancient Arles, where, on 800 m², a complete Roman barge 30m long discovered in the river is presented.