The 2nd Fed4FIRE+ Engineering Conference took place in Volos, on October 4th-6th, 2017. With more than 85 registered attendees, 39 contributors from 10 different countries, 15 speakers, 19 demos and parallel technical and tutorial sessions, the FEC2 brought stakeholders in the Next Generation Internet and Future Internet Experimentation together from across Europe. This event was a great success in terms of level of the quality of the different sessions and the showcases presented during the demo night.