D.01
A modular backend
Each domain lives in its own app, with business logic in a service layer and thin API views on top.
Company product · full-stack software engineer · live at qader.vip
Qader Platform (LMS)
An Arabic-first exam-prep platform for the Saudi market, for students and for schools.
01 // Problem
Saudi students prepare for national exams. Qader serves them in Arabic by default, right to left, with English as the second language, alongside the teachers, parents and schools around them.
02 // Architecture
- L1BackendDjango and Django REST Framework, organised as modular domain apps behind a documented OpenAPI contract.
- L2Real-time and jobsDjango Channels for WebSockets, Celery workers for background jobs, and Redis.
- L3DataPostgreSQL with pgvector.
- L4WebNext.js, React and strict TypeScript, Arabic first with right-to-left layouts.
- L5InfrastructureDocker, nginx, GitHub Actions CI, and Prometheus and Grafana for monitoring.
03 // Key_Decisions
D.02
Heavy work off the request path
Slow jobs run on Celery workers, so API responses stay fast.
D.03
Real-time where it matters
Live features run over WebSockets through Django Channels.
D.04
Arabic first
Right to left is the default layout and English is the second language, on the backend and the web app alike.
04 // Stack
- Django
- Next.js
- Celery
- Redis
- PostgreSQL + pgvector
- WebSockets