Milind's notes taken from the Backend in Node.js from Scratch Course by Sanket Singh

Production-grade cryptocurrency trading engine simulator with event-driven architecture, atomic balance updates, and thread-safe order matching. Built with Spring Boot 3.3+, Kafka, PostgreSQL, and Docker. Perfect for showcasing backend engineering skills!

Autonomous infrastructure recovery engine featuring predictive anomaly detection and self-healing capabilities for critical backend systems.

A lightweight Java 17 HTTP micro-framework with explicit routing, middleware composition, and production-focused runtime controls.

Enterprise-grade Event-Driven Webhook Service built with NestJS. Architected for high-reliability processing of mission-critical data from Stripe, PayPal, and GitHub. Features include HMAC security, idempotency control, BullMQ-based asynchronous processing with DLQ patterns, and distributed tracing with OpenTelemetry.

High-Reliability Code Execution Engine - Monorepo with Standalone HTML IDE, Node.js/Fastify Backend on Render, E2E Tests & CI/CD.

A high-performance Zero-Trust security proxy designed for data privacy and compliance. Implements dynamic data masking (DDM), AES-256 encryption, and automated PII detection to secure sensitive data flows in enterprise environments. Engineered for HIPAA/GDPR alignment.

No description provided.

Plataforma de gestão "Enterprise-Grade" focada em auditoria forense, segurança granular (RBAC) e integridade de dados. Desenvolvida em Laravel com arquitetura escalável.

This is a case study on implementing StackOverflow main features as an REST API

Universal dependency resolver using SAT solvers - works for software packages, course prerequisites, books, certifications, and any system with logical dependencies

Simulate Distributed Systems, Scalability, and Real-World Architectures for Backend Engineering.

Backend & Cloud Engineer focused on architecting scalable systems, AI-driven automation, and hardened DevOps pipelines.

A platform to learn to build systems at scale, from backend to LLMs.

A comprehensive Spring Boot 3 application demonstrating enterprise architecture patterns, 16 design patterns, and a production-ready multi-tenant order & audit platform with SOLID principles and Java best practices.

A comprehensive course covering the complete backend request lifecycle, from DNS resolution to database interaction, infrastructure management, and system design patterns.

A public repository of technical case studies examining the operational challenges faced by technology platforms in Africa as they scale, handle outages, and maintain reliable systems.

A concurrent web server implemented in C that utilizes a worker-thread pool architecture to handle multiple HTTP client requests simultaneously. This project demonstrates advanced systems programming concepts, including manual socket management, thread-safe synchronization, and atomic file I/O.

Repovive MAANG Interview Preparation Guide

Software Architecture (SOLID) & Design principles, Patterns and Clean Code. Also, the architecture related topics in IT!

.NET Backend Engineering | C# | aspnetcore-webapi | linux-based

Fault tolerance is a crucial aspect of microservices system design. Here, I implemented the circuit breaker pattern using Resilience4j for services written in Java/Spring Boot, with Redis as a fallback caching mechanism.

assessment project for jawapos as it intern interview

NuclearPayX is a modular, cloud-ready Fintech Infrastructure-as-a-Service (IaaS) platform built to power secure payment processing, digital wallets, and transaction management.

Open-source backend engineering handbook covering data structures, system design, and infrastructure concepts.

A Production-grade Rental Management System for handling properties, tenants, leases, rent payments, and maintenance workflows.

A resilient, replicated key-value storage system implemented in Python, featuring active replication and cluster orchestration. Developed for the Distributed Systems course at UFSCar.

Production-style Air Cargo Booking & Tracking system featuring route discovery, booking state machine, timeline events, and concurrency-safe updates.

A secure, ACID-compliant banking database system featuring stored procedures for safe money transfers and automated triggers for fraud detection.

Serverless, stateful incident triage tool built on Cloudflare Workers and Durable Objects. Supports session-based investigations with bounded AI assistance to guide diagnosis and next steps without adding operational overhead.