Postgres

A free, open-source relational database. It is the default database choice for most new products and backends.

What it tells you about a developer

Postgres experience travels almost anywhere, because it is the closest thing databases have to a shared standard. A developer who has run Postgres in production has usually handled schema design, migrations, and query performance, which are the durable parts of backend work. Depth here also ramps quickly to MySQL, SQL Server, and the cloud warehouses.

Type
Database
Released
1996
Used in
Backend

Postgres, formally PostgreSQL, is an open-source relational database maintained by a community rather than one company. It earned its position through reliability and range: strict data rules, full-text search, geographic data, and JSON documents in one system. Every major cloud offers it as a managed service, and most startups build on it.

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