A B2B SaaS billing platform
Migrated a single-tenant Rails app to a multi-tenant Laravel platform without a downtime cutover.
Result
Onboarding time
< 10 min
↓ from 2 weeks
Infra cost per tenant
−62%
vs. per-tenant DB
Challenge
The client had outgrown a single-tenant architecture — every new customer meant a new database and a new deploy. Onboarding took two weeks of engineering time per customer.
Approach
Designed a schema-per-tenant Postgres architecture with a shared application layer, then migrated existing customers in batches using a dual-write strategy during the transition window.
Outcome
New customer onboarding dropped from a two-week engineering task to a self-service signup flow.
Stack
“The checkout rebuild paid for itself inside the first month once the abandonment numbers moved.”
Head of growth
Head of growth, a direct-to-consumer retail brand
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