People detection and optional tracking with Tensorflow backend.

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• Updated Feb 21, 2021
• Python

A powerful and user-friendly web application that allows users to easily download audio content from Spotify URLs. This application is built using Flask for server management and spotDL for asynchronous audio file downloading.

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• Updated Aug 27, 2023
• Python

A robust, scalable payment gateway system built in Java, designed to demonstrate Low-Level Design (LLD), clean architecture, and real-world backend engineering concepts such as idempotency, asynchronous processing, and webhook reliability.

java webhooks backend design-patterns concurrent-programming thread-pool repository-pattern payment-gateway strategy-pattern lld system-design idempotency object-oriented-design low-level-design asynchronous-processing scalable-systems

• Updated Jan 16, 2026
• Java

Aether-SPARC v3: Asynchronous neuromorphic signal processor integrating Selective SSM (Mamba) with Predictive Coding. Achieves ~88% compute reduction by executing state updates only on signal surprise. Verified with hardware-accurate MAC accounting and Intel Loihi 2 silicon energy projections. High-sparsity edge DSP.

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• Updated Apr 19, 2026
• Python

Serverless image processor built with Go, AWS Lambda, S3, and SQS. Automatically creates thumbnails and medium-sized versions of uploaded images with optimized compression.

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• Updated Oct 29, 2025
• Go

An asynchronous online judge built on a distributed producer–consumer architecture using BullMQ, Redis, Docker, and MongoDB.

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• Updated Sep 29, 2026
• TypeScript

.NET 9 cloud backend for asynchronous podcast transcription with ASP.NET Core, FFmpeg, Azure AI Speech, Blob Storage, and Cosmos DB.

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• Updated Jul 11, 2026
• C#

Pipeline assíncrono de conciliação financeira de alta performance construído em .NET 8, processamento em lote via Azure Service Bus e SQL Server (TVPs), cache e idempotência com Redis e testes conteinerizados com Docker.

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• Updated Oct 5, 2026
• C#

PulseWatch is a distributed uptime monitoring platform that schedules website health checks, processes them asynchronously through RabbitMQ workers, tracks latency and failures, manages incidents and recovery, and delivers real-time service status updates.

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• Updated Aug 24, 2026
• Java

RideSphere is a scalable, event-driven ride-sharing backend system built using microservices architecture with Node.js, Express, MongoDB, RabbitMQ, and JWT authentication. The platform demonstrates real-world system design principles, asynchronous communication, API Gateway pattern, and fault-tolerant service orchestration.

nodejs distributed-systems microservices mongodb backend rabbitmq api-gateway expressjs bcrypt system-design event-driven-architecture asynchronous-processing scalable-architecture

• Updated Jan 10, 2026
• JavaScript

Production architecture documentation for implementing Redis and Celery in Django applications, covering caching, asynchronous task processing, environment isolation, Kubernetes deployment, and engineering design decisions.

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• Updated Jul 18, 2026

Simplified API for seamless OpenAI requests, streamlining access to AI capabilities... Created at https://coslynx.com

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• Updated Oct 18, 2024
• Python

Java demo showcasing both the Observer and Publish/Subscribe design patterns. Includes simple, practical implementations to highlight their differences.

asynchronous-processing system-design-architecture

• Updated Mar 28, 2025
• Java

Evidence-first technical pre-screening for web-business acquisitions. Built with Next.js, FastAPI, PostgreSQL, Redis, Dramatiq, and Playwright.

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• Updated Sep 22, 2026
• Python

Kafka Laravel Queue – A Laravel package that integrates Apache Kafka as a queue driver, enabling efficient, scalable, and event-driven job processing in Laravel applications. 🚀

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• Updated Aug 23, 2026
• PHP

API assíncrona e resiliente de processamento de filas desenvolvida com NestJS, BullMQ e Redis. Inclui tratamento de falhas com DLQ, concorrência, retentativas automáticas, documentação interativa com Scalar, testes com Jest e suporte a Docker.

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• Updated Jul 10, 2026
• TypeScript

Docker Compose setup for a highly available Kafka cluster using KRaft (no ZooKeeper). Includes Kafdrop for web-based Kafka monitoring.

asynchronous-processing

• Updated Apr 18, 2025

People detection and optional tracking with Tensorflow backend.

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• Updated Aug 9, 2024

Multi-threaded Java e-commerce system exploring concurrency, thread-safe inventory locks, and decoupled background task processing.

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• Updated Oct 17, 2026
• Java

A distributed J2EE Online Auction System utilizing EJB (Enterprise Java Beans) (Singleton, Stateless, MDB) & JMS for high-concurrency, asynchronous bid processing. Features realtime updates via WebSockets, thread-safe concurrency control, & a Bootstrap/jQuery UI powered by Jackson JSON serialization, deployed as a scalable EAR (Enterprise Archive)

javascript java bootstrap jquery distributed-systems json jsp jms websockets concurrency servlets java-ee mdb ejb stateless-beans real-time-bidding asynchronous-processing jackson-library enterprise-archive singleton-beans

• Updated Jan 11, 2026
• Java