Cloud & Infrastructure
- AWS: EC2, VPC, ALB, Security Groups, Route 53
- Networking: subnets, routing tables, CIDR, IGW
- Azure Fundamentals (AZ-900)
DevOps & CI/CD
- Docker & Docker Compose
- GitHub Actions pipelines
- CI/CD automation and deployment workflows
Infrastructure as Code
- Terraform: init, plan, apply, destroy
- Reusable modules, variables, outputs
- Provisioning cloud infrastructure programmatically
Databases & SQL
- SQL fundamentals: queries, joins, indexes
- PostgreSQL and MySQL
- Schema design and relational data modeling
- SQLite for lightweight and embedded use cases
Backend & APIs
- RESTful API design and integration
- Python and Java backend services
- Service-to-service communication
Security & Reliability
- HTTPS routing and CORS troubleshooting
- IP-restricted SSH access
- Basic logging and observability mindset