Juano Morello
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Technical articles on PostgreSQL, distributed systems, multi-tenant architecture, and backend engineering patterns I've encountered in production.

Schema-per-Tenant vs RLS: When to Use Which

Mar 19, 2026

A practical comparison of PostgreSQL multi-tenant isolation strategies — row-level security vs separate schemas, from someone who built both.

postgresqlmulti-tenancyarchitecturenest-tenant
8 min read

SKIP LOCKED Is Not Enough

Mar 12, 2026

Closing the race window in PostgreSQL task queues — why SELECT then UPDATE fails under concurrency, and how atomic CTEs fix it.

postgresqldistributed-systemskotlinkonduit
7 min read

Why SET LOCAL, not SET

Mar 5, 2026

Connection pool safety in multi-tenant PostgreSQL — and why session-scoped SET poisons shared pools.

postgresqlmulti-tenancynode.jsnest-tenant
6 min read
Juano Morello·Argentina · Remote