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!

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

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

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.

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

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

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.

Rental queue engine demo — Django, PostgreSQL, Elasticsearch, Redis. Queue-based tenant selection with eligibility pipeline, webhook events, and search fallback.

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

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

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.