Craig Ringer is a BDR and pglogical developer. He has contributed to many parts of PostgreSQL, including streaming physical replication, logical decoding, and in-core logical replication. He is particularly interested in distributed systems. He works for 2ndQuadrant, a major PostgreSQL contributor and service provider. 2ndQuadrant is a vendor of replication technology and has a long history of contributing enhancements across all parts of PostgreSQL, including its core replication features.