# Sunny (Shenzhen) GitHub: [Sunny-DotNet](https://github.com/Sunny-DotNet)
Twitter: [m67186636](https://twitter.com/m67186636)
LinkedIn: [sunny-dotnet](https://www.linkedin.com/in/sunny-dotnet)
Email: m67186636@gmail.com --- ## Profile Senior .NET engineer and open-source contributor with over ten years of hands-on engineering experience. Specialized in C# backend architecture, NuGet SDK development, and distributed system design, with broad experience across big-data ingestion and retrieval, AI/LLM integration, IoT device orchestration, and 3D scene delivery. Led provincial key projects and million-scale data platforms, maintains 70+ public GitHub repositories, and publishes open-source SDKs for the global .NET community. --- ## Strengths & Core Skills - **Deep .NET ecosystem practice**: Expert in .NET 6/7/8/9/10, ABP Framework (DDD layering, multi-tenancy, permission systems), and EF Core; led microservice architectures and modular application development. - **NuGet SDK development**: Independently designed and published production-grade .NET SDKs for cloud services, AI models, and big-data parsing, following dependency injection, async-first APIs, multi-target frameworks, and multilingual documentation standards. - **AI & LLM integration**: Authored DashScope.Net and CloudflareAI.DotNet SDKs; integrated dify and Ollama local LLMs for intelligent unattended live-streaming interaction, content generation, and bullet-chat semantic understanding. - **Distributed & high-concurrency processing**: Large-scale data ingestion, high-concurrency distributed crawling, Common Crawl parsing, MongoDB/Elasticsearch million-scale search, async pipelines, ETL, and aggregate analysis. - **Industrial-grade device orchestration**: Architected central control for 10,000+ square meter exhibition spaces and 100+ devices, covering clock synchronization, TCP/IP and serial communication, synchronized scheduling, and disaster recovery. - **Frontend & cross-platform development**: Skilled with JavaScript/TypeScript, Vue 3, Blazor Server/WASM, THREE.JS 3D scene rendering, UNI-APP mini programs, and MAUI cross-platform desktop applications. - **Embedded & robotics systems**: Arduino/ESP32 hardware drivers, 3D printing, and microcomputer control for distributed modular collaboration and automation. - **DevOps & continuous delivery**: GitHub Actions CI/CD, Docker/Kubernetes deployments, Selenium WebDriver E2E testing, and automated NuGet publishing pipelines. --- ## Tech Stack - **Backend/Distributed**: C#/.NET 6+, ABP Framework, Dapr, Quartz.NET, EF Core, SignalR, HangFire - **SDK/NuGet Libraries**: CommonCrawl.Net, DigitalOcean.Net, DashScope.Net, CloudflareAI.DotNet, MusicBrainz.Net - **Big Data/AI**: MongoDB, Elasticsearch, Common Crawl, dify, Ollama, ML.NET, OpenCV/Emgu CV, Tesseract OCR - **Frontend/Cross-platform**: JavaScript, TypeScript, Vue 3, Blazor Server/WASM, Ant Design Vue, Element UI, ECharts/Chart.js, THREE.JS, UNI-APP, MAUI - **IoT/Embedded**: Arduino, ESP32, TCP/IP, serial communication, clock synchronization (NTP) - **DevOps/Testing**: GitHub Actions, Azure DevOps, Docker, Kubernetes, Selenium WebDriver, Allure - **Other**: Redis, IdentityServer, RESTful API, JWT, OAuth2.0, SourceLink, Agile development --- ## Major Project Experience ### Open-Source .NET SDK Libraries Independently designed and maintained multiple open-source SDK libraries for the .NET ecosystem, consistently following dependency injection, async-first APIs, multi-target framework compilation, and multilingual documentation standards. | SDK Library | Description | Technical Highlights | |-------------|-------------|---------------------| | [**CommonCrawl.Net**](https://github.com/Sunny-DotNet/CommonCrawl.Net) | Common Crawl web archive parsing library | WARC parsing, Parquet index reading, resume support, `IAsyncEnumerable` streaming | | [**DigitalOcean.Net**](https://github.com/Sunny-DotNet/DigitalOcean.Net) | DigitalOcean cloud API client | 40+ resource categories, OpenAPI code generation, strongly typed DTOs | | [**DashScope.Net**](https://github.com/Sunny-DotNet/DashScope.Net) | Alibaba Cloud DashScope/Tongyi Qianwen LLM SDK | Chat/video generation APIs, function calling, SSE streaming | | [**CloudflareAI.DotNet**](https://github.com/Sunny-DotNet/CloudflareAI.DotNet) | Lightweight SDK for Cloudflare Workers AI | SSE streaming output, model discovery and metadata mapping, environment-based configuration | | [**MusicBrainz.Net**](https://github.com/Sunny-DotNet/MusicBrainz.Net) | MusicBrainz music metadata client | Media information retrieval, video download, metadata parsing | ### ExchangeRates — Automated International Exchange Rate Service ⭐5 - Fully automated international exchange rate data service built with GitHub Actions, syncing every hour with continuous stable operation. - Covers major global currencies, outputting both full and compact JSON formats with ISO 4217 compliance. - Earned 5 GitHub stars as the highest-starred personal project and has been adopted by external developers. [ExchangeRates project repo](https://github.com/Sunny-DotNet/ExchangeRates) ### Provincial Key Exhibition Hall System — Large-Scale Device Orchestration & 3D Scene Display - Led architecture and implementation for a provincial key exhibition hall spanning over 10,000 square meters, integrating 100+ screens, projectors, AV systems, lighting, and automated mechanical devices. - Built C#/.NET central-control backend and scheduling services, managing hardware by zones through TCP/IP and serial protocols with grouped synchronization and show-mode switching. - Developed NTP/private clock synchronization mechanisms with millisecond-level trigger precision across all terminals. - Implemented distributed fault diagnosis, disaster recovery scheduling, device health monitoring, and remote abnormal alerts. - Delivered multi-screen 3D scene rendering and visual-effect orchestration with THREE.JS, including virtual roaming, holographic projection, and dynamic particles. - Led stable delivery of health monitoring and automated scheduling systems, earning strong stakeholder recognition. ### Global-sites — Distributed Big Data Collection & Million-Scale Search - Led high-concurrency data collection and content analytics supporting real-time processing and retrieval of millions of web records. - Built a .NET distributed scheduling architecture, using the self-developed CommonCrawl.Net SDK to ingest Common Crawl datasets, batch parse WARC files, and extract page structure and metadata. - MongoDB sharded clusters + Elasticsearch full-text indexing for querying and aggregating hundreds of GB of data. - Designed deduplication and cleansing pipelines to improve statistical and analytical accuracy. - Built extensible batch ETL pipelines as a reusable high-quality data foundation. [Global-sites project repo](https://github.com/Sunny-DotNet/Global-sites) ### Smart Beauty Management Platform (beauty) - Delivered modular backend development with .NET Core + Dapr microservices, EF Core modeling, and efficient querying. - Implemented real-time logging and operational analytics with Elasticsearch. - Built Vue.js + TypeScript + Ant Design Vue frontend experiences with unified APIs and decoupled business modules. - Launched UNI-APP mini programs for WeChat, Alipay, Douyin, and other mainstream platforms. - Unified API gateway across mobile, web, and mini programs with automated deployment, role-based permissions, push messaging, and third-party payment integration. [beauty project repo](https://github.com/Sunny-DotNet/beauty) ### Unattended Matrix Live Streaming Platform (mt) - Built a matrix-style unattended live-streaming platform with automated recovery, remote streaming, bullet-chat interaction, and audience behavior analytics. - .NET Core + SignalR for real-time interaction, Quartz.NET for automated live scheduling, and Docker for elastic deployments. - AI integration: authored DashScope.Net SDK for Tongyi Qianwen models and integrated dify and Ollama for automatic bullet-chat replies, content generation, and business script planning. - Multi-platform, multi-account automated operations with containerized high-concurrency processing. [mt project repo](https://github.com/Sunny-DotNet/mt) ### Vision Recognition Platform (Vision) - Applied OpenCV for .NET/Emgu CV image processing, Tesseract OCR, and ML.NET machine-learning model integration. - ABP microservice architecture with multi-tenancy, fine-grained permissions, and modular DDD layering. - Decoupled Blazor/Vue frontend design with Docker-based automated testing and deployment. [Vision project repo](https://github.com/Sunny-DotNet/Vision) ### Embedded Robotics & IoT Assembly - Controlled servos, robotic arms, and sensors on Arduino platforms, combined with open-source 3D printing for modular assembly. - Connected multiple microcontroller modules for simple voice interaction, robot action decisions, online upgrades, and multitask collaboration. - Applied in educational scenarios and intelligent exhibition displays. ### ABP Enterprise Business Systems - Deep ABP Framework practice across GuorunAbp, OpenHub, Soobn.Music, and related projects. - Modular domain-driven design with full Application/Core/EntityFrameworkCore/Web layering. - Multi-database support, IdentityServer authentication, fine-grained permissions, and multi-tenancy. - HangFire background jobs, Redis distributed caching, and SignalR real-time push. - Complex Vue 3/Blazor frontend development supporting multiple business domains. ### Selenium WebDriver Automated Testing Platform - End-to-end UI automation testing with Allure reports, integrated with GitHub Actions CI/CD for efficient acceptance. - Browser automation with Puppeteer/Selenium applied to regression testing and data collection scenarios. --- ## Education China National Open University
Major: Computer Information Management --- ## Certifications - **Foundational C# with Microsoft**
freeCodeCamp · Issued: Oct 2025
Certificate ID: sunny-dotnet-fcswm --- ## Highlights - Multi-domain hands-on experience across big data, IoT, AI/LLM, exhibition device orchestration, embedded robotics, and 3D/mini-program delivery. - Proven ability to independently design and publish production-grade NuGet SDK libraries following industry-standard open-source practices. - Strong complex-system integration capability, especially in high-concurrency and multi-protocol hardware scenarios. - Passionate about open source and knowledge sharing, with strong communication and coordination skills. --- ## Open Source & Community - 70+ public GitHub repositories covering SDK libraries, big data, AI, IoT, automation, 3D, mini programs, and more. - Published multiple NuGet open-source packages with multilingual documentation (Chinese/English/Japanese/French) for global .NET developers. - Continuously participates in technical communities and industry exchanges. --- ## Languages - Chinese (native) - English (able to read technical documentation and resources) --- > For more projects and technical details, visit my GitHub profile [Sunny-DotNet](https://github.com/Sunny-DotNet). Please get in touch for additional project highlights or resume customization.