01. CORE PHASE
Professional Backend Developer
Language & Runtime
- Java / Spring Boot (Deep Dive)
- Go / Python (Concurrency & Performance)
- Node.js / TypeScript
Data Architecture
- Relational DB (PostgreSQL, MySQL)
- NoSQL (MongoDB, Redis, Cassandra)
- Query Optimization & Data Modeling
System Design
- Microservices Architecture (MSA)
- RESTful, GraphQL, gRPC APIs
- Message Queues (Kafka, RabbitMQ)
02. NEXT STEP
AI-Integrated Backend
LLM Integration
- OpenAI / Anthropic API Mastery
- LangChain & LlamaIndex Frameworks
- Function Calling & Tool Use
RAG System
- Vector Databases (Pinecone, Weaviate)
- Embedding Models & Retrieval Tuning
- AI Data Pipelines
03. INFRASTRUCTURE
Cloud & DevOps
Containerization
- Docker & Container Orchestration
- Kubernetes (K8s) Core Concepts
- Helm & Service Mesh
Automation (CI/CD)
- GitHub Actions / Jenkins Pipelines
- Infrastructure as Code (Terraform)
- Monitoring (Prometheus, Grafana)