1977 - 1988 NTT Labo: Unix Localization, Oracle port, EUC encoding architecture 1988 - 2019 NTT Data/NTT Data Intellilink: Leading Postgres-XC and log-shipping replication. 2006 - Present: Teaching Database Class at Tokyo City University 2019 - Present 2ndQuadrant and EnterpriseDB: Global deadlock detection, global transaction visibility and parallel recovery