| Missing / Light Coverage | Why it matters | |--------------------------|----------------| | | Required for high-concurrency apps (FastAPI, web sockets, async DB calls). | | Docker / Containerization | Standard for deployment & team consistency. | | Cloud basics (AWS/Azure/GCP) | Lambda, S3, RDS – common in job descriptions. | | CI/CD pipelines | GitHub Actions / GitLab CI for automated testing/deployment. | | NoSQL databases | MongoDB, Redis (caching, sessions). | | Advanced Django | Many jobs require Django ORM, admin, middleware. | | Performance profiling | cProfile , memory usage, optimizing bottlenecks. | | Security basics | SQL injection, XSS, environment secrets, hashing. |