Hi 👋, I'm Avi Jain

Backend Engineer | Java | Scalable Systems

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🚀 Backend Engineering Stack

🧠 Core Language

• Java → Advanced (OOP, Collections, Multithreading, JVM internals, Memory Management)

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⚙️ Backend Development

• Spring Boot → Advanced (REST APIs, MVC, Validation, Exception Handling)
• Spring Framework → Intermediate (Core, AOP, Dependency Injection)
• Microservices Architecture → Intermediate (service communication, scaling patterns)
• REST API Design → Advanced (idempotency, pagination, versioning, rate limiting)

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🗄️ Databases & Storage

• PostgreSQL / MySQL → Advanced (indexing, joins, query optimization, transactions)
• MongoDB → Intermediate (schema design, aggregation pipelines)
• Database Design → Advanced (normalization, trade-offs, scalability)

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⚡ Performance & Scalability

• Caching (Redis) → Intermediate (eviction strategies, caching patterns)
• Asynchronous Processing → Intermediate (threads, executors, event-driven systems)
• Load Handling → Intermediate (horizontal scaling, bottlenecks, stateless services)

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🔄 System Design

• Low Level Design (LLD) → Advanced (OOP design, patterns, clean architecture)
• High Level Design (HLD) → Intermediate (scalable systems, trade-offs)
• Design Patterns → Advanced (Singleton, Factory, Strategy, Observer, etc.)

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🔗 Messaging & Distributed Systems

• Kafka / Message Queues → Basic–Intermediate (pub-sub, event-driven systems)
• Consistency Models → Basic (CAP theorem, eventual consistency)

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🧪 Testing

• JUnit / Mockito → Intermediate (unit testing, mocking)
• API Testing (Postman) → Intermediate

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🔧 DevOps & Infrastructure

• Docker → Intermediate (containerization, image optimization)
• Kubernetes → Basic–Intermediate (container orchestration, deployments, scaling)
• Git → Advanced (branching, rebasing, collaboration)
• CI/CD Basics → Basic

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🧮 Problem Solving

• Data Structures & Algorithms → Strong (1000+ problems)
• Focus: Graphs, DP, Trees, Greedy

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📫 Reach Me

• Email: avijn2004@gmail.com
• LinkedIn: https://www.linkedin.com/in/avi-jain-33564422b/
• Leetcode: https://leetcode.com/u/avijn2004/