Stéphan Roullot is Director of Product Line Management for Packet, TSN, Synchronization and MEF services in the ION Business Group. He holds a master degree in Electrical Engineering from the Institut National des Sciences Appliquées (INSA) of Lyon, France. After starting his career as R&D engineer (System Test, System Engineering & Architecture), he held several positions in technical sales, network architecture and business development on a broad range of technologies: SDH MSPP, WDM, Carrier Ethernet Switch/Router (Riverstone), xDSL Broadband Access, Mobile backhaul products, before moving into Product Strategy and Product Line Management for a number of Carrier Ethernet packet optical products, including the 1830 PSS since 2011. Stéphan is MEF CECP certified and is owning the various global packet-optical and synchronization programs on the 1830 PSS and TPS platforms. His functions encompass strategy, standards, feature definition, R&D management and customer pre-sales and post-sales support.