EUOSHA/2021/OP/F/SE/0142  59  As supporting documents for each project reference the contracting authority  may request statements issued by the  clients and make contact with them.  Minimum level of capacity   Project director (senior profile):  Criterion T3 — lot 3  • highly qualified expert,  having assumed major responsibilities in their profession, recruited for his or her  capacity as manager/supervisor, thought and creativity in  his or her work;  • they must have at least 10 years’ professional experience,  of which at least 5 years’ experience must be in  organisation, management, implementation, supervision,  quality control and consideration of client needs in the  professional sector concerned and in at least three projects  each with a value of at least EUR 100,000. In the professional sector and for the tasks referred in  section  2.3 : - experience in managing a team of at least five people;  - management capacities to coordinate complex projects such as conferences in an international  environment;  - knowledge of the activities of the EU institutions would  be an asset;  - a very good knowledge of written and spoken English  (C1 level).  Event coordinator (senior profile):  • highly qualified expert, having assumed responsibilities in  his or her profession, recruited for his or her capacity as  manager/supervisor, thought and creativity in his or her  work;  • the event coordinator must have at least 7 years’ professional experience, of which at least 4 must be  connected with the professional sector concerned and the  type of tasks to be performed;  • a very good knowledge of written and spoken English (C1  The team offering the service shall include at least the following profiles and  experiences : 