- Senator at the Hashemite Kingdom of Jordan Senate 2010 to 2013 / 2021 to 2022 & 2022 up to date
- Executive Vice-Chairman & President MENA, - Hikma Pharmaceuticals PLC
- Mazen Darwazah joined Hikma in 1985 as a medical representative and has held several positions, including Chairman and CEO of Hikma Pharmaceuticals Limited (Jordan), He is the Chairman of Trust Pharma Limited (Algeria) and Pharma Ixir Co. Ltd (Sudan)
- Board Member of Hikma Pharma (Egypt), Ibn Al Baytar (Tunisia), Hikma Pharmaceuticals (Lebanon), Promopharm (Morocco)
- Mazen holds a B.A in Business Administration from (L.A.U), Lebanon and an AMP (Advanced Management Program) from INSEAD
- Member of Board of Trustees: BirZeit University
- Member of Board of Trustees: Kings Academy
- Member of the King Abdullah II Economic Policy Board
