Complex sentence: The International Board as the executive body of ESN International consists of five Board members (President, Vice-President, Treasurer, Communication Manager and Web Project Administrator), who are full-time volunteers living and working in Brussels.
Split into simpler sentences: The International Board is the executive body of ESN International and consists of five Board members (President, Vice-President, Treasurer, Communication Manager and Web Project Administrator). The members of the international board are full-time volunteers living and working in Brussels.