Design and operate the database and caching fleet (RDS/Aurora PostgreSQL, ElastiCache Redis/ValKey, DynamoDB) that underpins Compass's core products, making decisions about replication, failover, capacity, and engine strategy that affect every team in the company. Build multi-tenant data isolation into Compass's data layer from the ground up, shipping SDKs in Go, Java, and Python that enforce tenant-safe access patterns so product engineers can move fast without risking cross-tenant data exposure.