Oct 2020 – present

ETITE products and infrastructure

Single sign-on, a multi-tenant ERP, team chat and the production fleet they run on, plus client systems delivered with my team of five.

Sign-ins in load tests, covered by 837 automated checks: 24 /s at p95 73 ms; Sign-ins in load tests, covered by 837 automated checks
Measured restore drills for identity and ERP: < 50 s; Measured restore drills for identity and ERP
Chat message delivery with 200 users online: p50 69 ms; Chat message delivery with 200 users online

The problem

A small company shipping many products needs one identity, shared infrastructure and evidence that backups and security actually work.

Single sign-on for 35 applications on Keycloak, with MFA by default, passkeys and step-up checks for admin areas.
A multi-tenant ERP on ERPNext v16 with Rwanda tax and holiday localisation.
A Matrix-based chat with a 2.9 KB embeddable widget and end-to-end encryption.
A five-server Docker production fleet: Traefik edge, private registry, self-hosted CI runners, central logs and metrics, and encrypted off-site backups with restore drills.
A security review of the multi-tenant workspace product that closed about 20 issues, and accessibility checks (WCAG 2.1 AA) in CI.
Client systems delivered with my team of five: the RITCO management information system, Woodhabitat ERP, the OAZIS learning platform and an HR platform. I designed the UX in Figma, planned the work, tested every feature and ran client feedback.