At MaraIT, I built a full-stack inventory and point-of-sale platform from scratch, spanning a Tauri and Svelte desktop client, Go backend services, a Node.js and TypeScript authentication gateway, and PostgreSQL.
I designed multi-tenant data isolation and role-based access control, and built transaction processing with idempotent operations, safe retries, and concurrency control. I also handled versioned migrations, encrypted backups, and disaster-recovery procedures.
At Ad Maiora S. Asoc., I built a Go and PostgreSQL donation platform backend and designed a payment flow that verifies signed webhooks and prevents duplicate confirmations. I also set up CI/CD with GitHub Actions and Kubernetes deployment.
At WethosAI, I implemented just-in-time user provisioning for an enterprise SSO integration and built Microsoft Graph integrations for OneDrive and Microsoft Calendar. Earlier, I developed REST APIs with Node.js and Express at Snow Easy and as an independent contractor.
