Check out professional insights posted by Jennifer Ponce de Leon, MBA, Business Development I JEM Group Construction Services. Jennifer Ponce de Leon, MBA’s Post Jennifer Ponce de Leon, MBA Business Development I JEM Group Construction Services 5mo Report this post #diversity is impacting #growth in our region! Register to meet a diverse minded community who's making innovativ. Jennifer Ponce de Leon, MBA’s Post Jennifer Ponce de Leon, MBA Business Development I JEM Group Construction Services 7mo Report this post.