Backend Intern

3 days ago

Doha, Baladīyat ad Dawḩah, Qatar Dine N order for trading and services W.L.L. Full time 40,000 - 80,000 per year

This is a full-time on-site role for a Backend Intern (Python) located in Doha, Qatar. The Backend Intern will be responsible for :

API & Backend Development

  • Build, test, and maintain RESTful APIs using FastAPI.
  • Implement authentication & authorization (JWT, OAuth2, API Keys).
  • Design microservices that communicate via REST/gRPC or message queues
  • Handle file uploads, media storage, and background tasks (RQ Workers, FastAPI BackgroundTasks).

Database (PostgreSQL)

  • Design normalized database schemas with indexes & constraints.
  • Write optimized SQL queries & stored procedures where needed.
  • Ensure data integrity with Alembic migrations.
  • Perform basic database administration (backup/restore, query performance tuning).

API Management

  • Create REST endpoints for mobile/web clients.
  • Ensure error handling, validation, rate limiting.
  • Document endpoints with Apidog

Performance & Security

  • Optimize queries & endpoints for large-scale traffic.
  • Implement caching layers (Redis / FastAPI middleware cache).
  • Secure APIs against injection, XSS, CSRF, and other vulnerabilities.

Development Workflow

  • Git & CI/CD
  • Follow Git branching strategy (Dev → STG → PROD).
  • Participate in code reviews, follow code quality standards.
  • Work with deployment pipelines (GitHub Actions, Docker, Kubernetes, Azure App Service, VPS).
  • Testing
  • Write unit tests with pytest & FastAPI test client.
  • Use mocks for APIs, DB, and external services.
  • Maintain test coverage for reliability.
  • Documentation
  • Keep README and API docs up to date.
  • Write migration notes.

Deliverables

  • Implement new backend features (from requirement → deployment).
  • Maintain/debug existing APIs & microservices.
  • Ensure data accuracy in PostgreSQL for analytics/dashboards.
  • Create admin tools & dashboards (FastAPI + frontend integration).
  • Deliver well-tested, production-ready code on deadlines.

Job Type: Full-time

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