Work

Client onboarding

Case intake and client onboarding, in seven signed steps.

Next.js · Postgres · Drizzle

The problem

Client onboarding for a law firm lived in a scattered form and a mailbox. The data existed but was not usable, and the sector is regulated.

Constraints

AML law and GDPR at the same time: an audit trail that cannot be edited, seven-year retention, and a right to erasure that must not erase what the law requires keeping.

What was built

A seven-step flow with conditional logic, a hash-chained audit log the database itself refuses to update or delete, Portuguese tax-number and IBAN validation, and a handwritten signature bound to a hash of the whole file.

What happened after

In production. The full flow was walked end to end on the live database.

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