Mohammed Sayed

Senior Software Engineer | Backend Specialist

I'm a software engineer and a lifelong gamer. Most of my work lives on the backend, from designing APIs and shaping service architecture to squeezing out performance and keeping things reliable.

What pulls me in is the hard part: the place where distributed systems, observability, and resilient infrastructure all collide in production.

I build for real-world pressure, heavy traffic, flaky dependencies, and tight latency budgets. My goal is always the same: systems that are simple to reason about, easy to observe, and stubbornly hard to break. I write about the problems I run into.

GitHub Contributions

OctNovDecJanFebMarAprMayJunJulAugSep

Experience

VBooking

Architected and developed a production-grade DHIS2 application for national health information systems, delivering configurable ICD-11 workflows, real-time analytics, digital certification, and interoperable public health reporting.

  • DHIS2
  • ICD-11

Stealth Startup

  • Rust
  • Go
  • Node.js
  • ASP.NET Core

Freelancing

Tech Stack

Backend

  • Go
  • .NET
  • TypeScript
  • Node.js
  • Bun
  • Hono
  • tRPC

Frameworks

  • Next.js
  • TanStack

Infrastructure

  • Cloudflare
  • Docker
  • Linux
  • Railway

Databases

  • PostgreSQL
  • Redis
  • Cloudflare D1
  • Drizzle
  • Convex

Observability

  • Grafana
  • Prometheus
  • Axiom
  • Sentry