AI-powered hiring and career platform connecting candidates and recruiters through intelligent recruitment, resume analysis, job discovery, and placement preparation.

Order management for an online store: order lifecycle, transactional outbox, saga-orchestrated stock reservation across a Python and a Java service

Full-stack commerce and after-sales agent built with Java, Vue and Python: transactional orders, confirmed refunds, resumable workflows and grounded retrieval.

HJ212 环境在线监测平台，兼容 HJ212-2005 / 2017 / 2025（含 2025 版 SM4 加密接入）：Netty 接入、编解码（CRC/分包/半包粘包）、超标预警、派单审核、钉钉通知、设备模拟器。Spring Boot 3 + Netty 4

Full-stack work order app for field service teams: Spring Boot 3 REST API with JWT, JPA, Flyway and PostgreSQL, Angular 20 frontend, Docker Compose and CI.

Enterprise, open source QA automation framework Spring Boot · Cucumber · Selenium · REST Assured · axe-core · Extent Reports · Java 27

Product concept and technical blueprint for PLAVIO, a property-discovery Android app. Documents user journeys, Java/Spring Boot REST API architecture, PostgreSQL/Room data design, UI direction, security, accessibility, and team workflows.

Real-time payment fraud detection in Java 21 / Spring Boot — deterministic scoring on the payment path, an agentic investigation layer with bounded read-only tools behind it.

Ambiente Docker oficial, leve e de alta performance para execucao do e-SUS APS PEC (Prontuario Eletronico do Cidadao) no Linux.

AI security analyst that investigates suspicious emails, logins and call transcripts with tools, backs every verdict with evidence, and waits for human approval before risky actions. Spring Boot gateway built; Python agent and React dashboard in progress.

Designed a layered REST API (Controllers, Services, Repositories) with full CRUD, DTOs, and bean validation for members, skills, and exchange requests. Implemented business rules such as skill ownership checks on exchange requests, with centralized error handling for consistent JSON error responses.

A distributed systems playground for visualizing and experimenting with consistency models.

Opinionated skills that teach coding agents to write current, secure, low-resource Java: JDK 25+, Spring Boot 4, virtual threads, HikariCP, tested in CI.

REST API built with Java 21 and Spring Boot that generates QR Codes from text and uploads them to AWS S3, following Hexagonal Architecture and containerized with Docker.

Simulates a live card-processor migration in Java/Spring Boot: staged rollout gated by reconciliation, instant rollback, and no double charges under injected timeouts and crashes.

小c快送：校园外卖点餐平台（微信小程序 + Web 管理端 + Spring Boot 后端）

Webhooks de Stripe y Mercado Pago en Spring Boot que acreditan una sola vez, aunque lleguen repetidos o en paralelo. Java 21, PostgreSQL y pruebas con Testcontainers.

Secure, observable Java 21 MCP server for governed read-only AI access to IBM Db2.

基于 LangGraph 的电商与智能售后系统：Java 事务业务、可恢复退款工作流、商品知识 RAG、MinerU 文档解析与 BGE-M3 混合检索。Java 17 · Spring Boot · Vue 3 · Python · DeepSeek

Scan Java Spring Boot projects and explore their REST APIs in the browser — no Swagger or running server required.

bahguta Homelab

MCP server built with Java 17, Spring Boot and Spring AI that lets Claude Desktop manage job applications through natural language.

API REST desenvolvida com Java e Spring Boot para disponibilizar dados em JSON ao aplicativo UNISO Help.

Real-Time Dispatch & Field Operations Platform with Live Shift Tracking built with Java 17, Spring Boot, WebSockets, and React.

VigilDocs — 多 Agent 协作的智能知识库平台，采用五层可编排 Agent 架构与 RAG 全链路；基于 Spring Boot、FastAPI 和 React，统一 Tool Registry 与 runId/traceId 审计，支持 Caffeine + Redis 多级缓存，并扩展 RabbitMQ 持久化文档处理和人工审批删除。适合作为 Agent 后端开发学习与项目展示。

Event-driven real-time transaction fraud scoring (Spring Boot 3, Java 21). In-process event bus on virtual threads, per-card velocity features, five explainable rules → 0-100 score + APPROVE/REVIEW/DECLINE.

The official Green Launcher website: features, downloads, release notes and secure release management.

RealLive - Live streaming platform built with an event-driven microservices architecture across Web and Android.

A reference double-entry financial ledger in Java 21 and Spring Boot 3 engineered for correctness under concurrency, retries, and partial failure.

Full-stack task management platform built with Java 21, Spring Boot 3, Spring Data JPA, MySQL, and vanilla JavaScript.