Spring Boot
Apache Kafka
Redis
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System Design Patterns
Java
Python (FastAPI)
Node.js (Express)
RESTful API Design
ETL & data pipelines
React.js
Next.js
JavaScript
TypeScript
Docker
CI/CD
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PostgreSQL
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High Availability Systems
Fault-tolerance
Caching Strategies
Load Balancing
Modular Service Architecture
Deisgn Patterns
Short Circuiting
Spock
Automation frmeworks
Unit Testing
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End-to-End Testing
Test-Driven Development (TDD)