Staff Database Reliability Engineer - PostgreSQL

Stream runs 35–40 PostgreSQL databases (largest: 15TB) behind high-write, high-concurrency APIs serving billions of requests a month. We're migrating from AWS RDS to self-hosted Postgres on Kubernetes and need someone who has owned this end-to-end: query plans, vacuum and bloat, replication, backup, HA, sharding. Required: deep Postgres internals (MVCC, the query planner, autovacuum), real sharding experience beyond table partitioning, self-managed databases in production, and enough engineering depth to work directly with application teams on access patterns. Explicit non-goals: RDS/Aurora-only backgrounds, analytics/data-warehouse experience, or DBAs who don't code. Strong plus: CloudNativePG, Kubeblocks, logical replication, CockroachDB experience. Apply here: https://jobs.ashbyhq.com/stream/44056edb-2489-4187-97ff-afe0... (https://jobs.ashbyhq.com/stream/44056edb-2489-4187-97ff-afe04c36929c?utm_source=5rrpvObp3r)