I am a final-year B.Tech IT student focused on building scalable, distributed backend systems. I enjoy deconstructing complex architecture into simple, efficient solutions.

• 🚀 Currently: Building event-driven, async backend systems with job queuing, retry logic, and worker orchestration.
• 🧠 Learning: Distributed systems (Consistency, Fault Tolerance) and Cloud Infrastructure (AWS/Docker).
• 🎯 Goal: Developing production-ready APIs and mastering system design for large-scale applications.
• 🧩 DSA: Solving 300+ problems on LeetCode — actively documenting solutions with production-style clarity in my DSA-Revision-Java repo.

A production-inspired async request processing system that handles high-throughput workloads through intelligent job queuing, worker orchestration, and fault-tolerant retry mechanisms.

• Tech Stack: Java, Spring Boot, Redis, MySQL
• Key Features:
  • ⚙️ Async request processing — requests are accepted instantly and processed in the background, keeping the API non-blocking
  • 📋 Job Queue with Retry Logic & Dead Letter Queue — failed jobs are retried with backoff; unrecoverable jobs are moved to DLQ for inspection, not silently dropped
  • 🩺 WorkerHeartBeatService — tracks active workers using ConcurrentHashMap + ScheduledExecutorService; detects stale/dead workers and cancels them cleanly via AtomicBoolean + Future.cancel(true) with graceful @PreDestroy shutdown
  • 🔍 Metadata-first result fetching — clients always query job metadata first; the system hits the database to fetch the actual result only when status is COMPLETED, avoiding unnecessary DB calls for in-progress or failed jobs

A backend-driven URL shortening service that enforces safety verdicts on every redirect, tracks click analytics non-blocking, and secures all APIs with stateless JWT authentication.

• Tech Stack: Java, Spring Boot, Spring Security, Apache Kafka, Redis, MongoDB, JavaScript
• Key Features:
  • 🛡️ Three-tier safety verdict system — every redirect is evaluated as SAFE, SUSPICIOUS, or MALICIOUS; suspicious links show a user confirmation page, malicious links are blocked entirely
  • 📊 Non-blocking click analytics — an intermediate HTML page uses JavaScript to capture device, browser, viewport, and timezone data before redirecting; tracking failure never blocks the user
  • 🔐 Stateless JWT authentication — all APIs secured with short-lived 10-minute Bearer tokens; no server-side sessions
  • ⚡ Redis caching for high-speed short URL lookups and redirection
  • 📨 Kafka-driven analytics pipeline — click events published asynchronously, keeping the redirection path low-latency
  • ⚙️ Environment-based config management — default config acts as a blueprint; environment variables drive all environment-specific values with no codebase changes needed

Category	Tools & Technologies
Languages
Frameworks
Databases
Caching
Messaging
Concepts	REST APIs, Event-Driven Architecture, Async Job Processing, Worker Orchestration, Dead Letter Queue, Rate Limiting, Caching, Microservices basics
Tools
Problem Solving	Data Structures & Algorithms (Java, C++)

I'm always open to collaborating on open-source projects or discussing backend architecture.

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