Muhammad A.

I build and harden SaaS and multi-tenant systems that stay reliable in production — not demos that only work locally. I’m Muhammad Ahmed, a full-stack/platform engineer with 8 years of experience shipping backends, frontends, infra, and observability for real products. I work end-to-end: architecture, APIs, UI, deploy, and monitoring. What clients hire me for • Full-stack SaaS (React/Next.js + Elixir or Node) • Multi-tenant design and secure auth (JWT / OAuth / OIDC) • AI workflows and RAG with production-safe integrations • Performance-minded Postgres/API design • CI/CD and containers (GitHub Actions, Jenkins, Docker) • Cloud/infra support (AWS, OpenStack, Ceph) • Observability (Grafana, Prometheus, and similar) • Figma-to-production UI when the product needs a clean front end Core stack Elixir, Phoenix, LiveView, Next.js, Node.js, TypeScript, React, PostgreSQL, Docker, Tailwind, GraphQL, AWS, Jenkins, Grafana, Prometheus If you need a production blocker fixed or a system built end-to-end, send the repo or brief and I’ll tell you the fastest safe path.