ASAD ULLAH

I build multi-tenant B2B SaaS end to end — the data model, the API, the front end, the mobile app, and the server it all runs on.

Most of my time goes to CampusNama, a school-management platform I designed, built and operate alone: a 71-model Prisma schema, ~150 NestJS modules, 420 passing tests, and a 105-screen React 19 front end, taken from an empty repository to paying schools. The rest goes to a US special-education network, where I lead engineering across four connected products, the largest serving over 5,000 students.

Alongside that, four years of remote contract work for clients in the Netherlands, UK and US — 12+ delivered platforms, owning data models, APIs, React clients, mobile apps, CI, server provisioning, reporting, RBAC and multi-tenant isolation.

Some things I'm good at. Tenant isolation as one mechanism rather than per-query discipline: on CampusNama a single Prisma query hook injects school_id across 53 of 61 models. Permissions: I audited an inherited codebase, found a guard that failed open, and closed it across the controllers. Migrations that don't take the system down: plaintext to scrypt on a live database with no maintenance window. And AI where it earns its place — Gemini drafts quarterly reports, but nothing reaches a parent until a clinician reviews and a coordinator approves.

I also run what I build: self-managed Hetzner infrastructure, PostgreSQL, Nginx, PM2, Cloudflare, backups, incident response, security audits.