This talk discusses our implementation experience adding SNOMED CT support into Snow Owl, a terminology authoring platform. Aspects of the platform will be demonstrated that addressed challenges such as: implementing the HL7 TermInfo standard to support semantic search of SNOMED CT concepts; implementation of SNOMED CT RF2 query-based (intensional) reference sets; benefits of using off-the-shelf description logic classifiers (including ELK and FaCT++) to identify logical errors in SNOMED CT concept definitions; support for collaborative authoring via task management; and multi-user distributed authoring. Please see our website http://b2i.sg for further information.