PostgreSQL Meetup Berlin at Zalando HQ
How does PostgreSQL work with disks: a DBA's checklist in detail. PGConf.US 2015
PostgreSQL worst practices, version FOSDEM PGDay 2017 by Ilya Kosmodemiansky
Autovacuum, explained for engineers, new improved version PGConf.eu 2015 Vienna
Linux internals for Database administrators at Linux Piter 2016
PostgreSQL worst practices, version PGConf.US 2017 by Ilya Kosmodemiansky
10 things, an Oracle DBA should care about when moving to PostgreSQL
Linux IO internals for database administrators (SCaLE 2017 and PGDay Nordic 2017 version)
Linux tuning to improve PostgreSQL performance