Backend Engineer

Topics Covered:

• Basic syntax (in Python, JavaScript, or Java)
• Control structures (loops, conditionals)
• Functions, modules, and OOP concepts
• Basic data structures (lists, maps, stacks)

Topics Covered:

• Git basics (clone, add, commit, push)
• Branching and merging
• Command line navigation and scripting

Topics Covered:

• How the web works (HTTP, HTTPS, REST)
• Client-server architecture
• API design principles

Topics Covered:

• Setting up servers (Node.js, Django, or Spring Boot)
• REST API creation (CRUD)
• Routing and middleware
• Authentication & Authorization (JWT, OAuth)

Topics Covered:

• Relational DBs (PostgreSQL or MySQL)
• NoSQL DBs (MongoDB, Redis)
• ORMs (Prisma, Mongoose, SQLAlchemy)
• Database design & normalization
• Query optimization & indexing

Topics Covered:

• Error handling & logging
• Input validation & sanitization
• File uploads and handling media
• Email sending & cron jobs

Topics Covered:

• WebSockets & Socket.IO
• GraphQL APIs (Apollo, Hasura)
• gRPC & Protocol Buffers basics
• Rate limiting, caching, throttling

Topics Covered:

• Containerization with Docker
• CI/CD pipelines (GitHub Actions, GitLab CI)
• Cloud services (AWS, GCP, Azure basics)
• Environment variables & secrets management

Topics Covered:

• Monolith vs Microservices
• Message queues (RabbitMQ, Kafka)
• Load balancing & horizontal scaling
• Database replication & sharding

Topics Covered: