Maarten Kremers joined SURFnet in 2007 and is a Technical Product Manager Trust & Identity. He is involved as project member and project manager in the innovation and development of collaboration and identity management infrastructure SURFconext. Furthermore he is currently leading the GN4 Trust & Identity task on the next generation T&I technology development, amongst others on user-drieven identity management, cross-sector federations and OpenID Connect for identity federations. He holds a MSc degree in Information Management from Tilburg University.