cwvermaak.dev
Software architect · Johannesburg

Christiaan “Wimpie” Vermaak

I architect resilient systems where development, infrastructure, and quality assurance intersect — identity & access, zero-knowledge security, multi-tenant SaaS, and the audit discipline that keeps them all honest.

Heritage in judgement. Modern in method.

Currently building & delivering
WeldForge — federated IdP KeyCrypt & NoteForge — zero-knowledge security App-iary Buddy Suite IntelliSuite — business software for SSMEs Client architecture & DevOps
Writing

Latest notes

Field notes from building identity platforms and multi-tenant products — the decisions, the trade-offs, and the things I wish I'd known earlier.

· 3 min read

Per-tenant signing keys in a multi-tenant OIDC issuer

One binary, many tenants, and a different signing key for each. How WeldForge keeps token issuance isolated without running an issuer per customer.

identityoidcmulti-tenancyspring-boot
Read
· 2 min read

Hello — and why this site exists

A short colophon. Who I am, what I'll write about here, and why the site you're reading runs on the same stack I ship to clients.

metatina4
Read

Looking for the consultancy?

Architecture, identity, and delivery work runs through CW Vermaak Informatics. The product is WeldForge.