Marwan Abd alMagied

I’m a backend engineer with hands-on production experience building and deploying REST APIs, event-driven caching systems, and scalable database architectures using TypeScript/Node.js. I enjoy translating complex business rules into clean, testable code—from discriminated union validation to cache invalidation strategies.

In my projects, I designed and shipped production APIs that manage real business workflows across roles, tracks, and yearly cohorts. I implemented event-driven cache invalidation with a typed Node.js EventEmitter bus to decouple write operations from cache management, and I added HTTP caching with ETag/304 responses to reduce redundant data transfer.

I also care about correctness-by-design: I built cross-field Zod validation using discriminated unions, and I auto-generated OpenAPI documentation from Zod schemas so API contracts stay in sync with validation logic. On top of that, I built a Cloudinary image pipeline with orphan-prevention logic to prevent storage leaks after failed DB saves.

Right now, I’m teaching backend development at IEEE Al-Azhar, mentoring 10+ students through technical project reviews and entry interviews. I’m looking for backend roles in Cairo (on-site/hybrid) where I can own API design and system architecture, collaborate in Agile teams, and keep leveling up through real engineering feedback.