area · AML/KYC Compliance
Delivered the AML/KYC validation module of an insurance platform end to end: FastAPI backend, a hexagonal adapter with typed ports, a case inbox and a 4-step wizard.
◆ KycPipeline
This is how the KYC engine processes a file: five steps, from attachments to verdict. Scroll to walk through them; on the right, the verdict with the reason for each check.
Receives the policy request's attachments.
3 attachments · id.pdf · proof-of-address.jpg · tax-certificate.pdf
Identifies each document's type and discards the ones that don't belong.
id → voter ID · proof → utility bill · certificate → tax status
Extracts the fields with an LLM and normalizes them to a typed schema.
{ "name": "Ana Ejemplo Ruiz", "rfc": "EERA850101XX0", "address": "12 Fictional St" }
Runs checks and cross-validations by person type and risk tier.
validity · name match · recent address · RFC ↔ certificate cross-check
Stores the result with the reason for each check, ready for review.
needs review · 3 of 4 checks OK · 1 to review
Ana Ejemplo Ruiz · individual · new client
Needs review
ID validity : passed
Expires in 2029: valid on the request date.
Name match : passed
The name matches across all three documents.
Recent proof of address : to review
It is 95 days old; the policy requires 90 or fewer.
RFC ↔ tax certificate cross-check : passed
The extracted RFC matches the one on the certificate.
Demo with fictitious data: no real clients and nothing from production.
A framework-free domain package with typed ports that a second engineer kept building on.
Read the case study →I led the implementation of a repository layer in 15+ slices over 3 days, protected by characterization tests and a blocking import-linter contract in CI.
A recurring cross-module data leak came from an untyped nullable column. I showed why the tests missed it and wrote the contract that fixed it.
End-to-end owner
AML/KYC module of an insurance platform (art. 492): it ingests a request's attachments, classifies them, extracts their fields, runs checks and stores a verdict with the reason for each one.
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