Jantzen gained his Diplom Ingenieur Architect from University Kaiserslautern in Germany.
Art and sculpture, in Zurich, Switzerland.
Interior design, town planning, landscaping, urban development, kaiserslautern.
He worked for a number of German, Swiss and French based offices:
Behnisch Architect’s office
Forster Architect’s office
Matieus Architect’s office
Gouss Architect’s office
Own office in Germany in 2000
Own office in Cyprus in 2003
Registration Number Federal Chamber of Architects in Germany: 16340
Registration Number ETEK Technical Chamber of Architects in Cyprus: A098509/A