Hire the Best .NET Core Developers
in China

I am a hardworking, proactive Full-Stack Developer with over 10 years of professional software development experience, proficient in both .NET and Java technology stacks. I specialize in building stable, scalable, and enterprise-level web applications and business systems. On the .NET side, I am skilled in C#, ASP.NET, .NET Framework / .NET Core, Web API, JavaScript, MSSQL, MySQL, and Oracle databases. On the Java side, I am experienced in Spring Boot, Spring Cloud, backend service development, RESTful API design, and enterprise system architecture development. I have independently developed and participated in multiple large-scale commercial projects, including OA systems, workflow management systems, government administrative approval systems, and ERP enterprise resource management systems. I am capable of requirement analysis, full-cycle development, database design, system debugging, deployment, and performance optimization. Additionally, I am highly proficient in AI-assisted development. I am experienced in writing high-quality AI prompts, utilizing various AI tools to accelerate coding, optimize logic, troubleshoot technical issues, and improve overall development efficiency and code quality. I can quickly understand technical requirements and deliver standardized, stable, and maintainable project outputs. I have 4 hours of stable available working time every day and can provide long-term, consistent, and high-quality development support for ongoing projects.

Software Engineer with 3 years of development experience. Master's degree in Information Technology from the University of Auckland. I've worked at Tencent, Bosch, and COMAC (Commercial Aircraft Corporation of China). I specialize in full-stack development. - Backend: Java/Spring Boot, Go microservices, Python, C++, Rust - Database & Cache: MySQL, PostgreSQL, Redis, Elasticsearch - Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD - Frontend: Vue3, React and QT What sets me apart: - Built cloud container management system at Tencent serving enterprise clients - Developed AI platform from scratch at Bosch as sole developer - Currently building CFD simulation software for aircraft development I deliver clean, well-documented code with clear communication. Let's discuss your project!

Hello, everyone!🙌 I'm a FULL STACK WEB DEVELOPER with Node.js,React.js, Next.js, Node.js, Nest.js, TypeScript, C#, .NET and other skills and expertise. 🔥I turn ideas into fast, user-centered web apps—front to back. New MVP, rescue mission, or feature push, I jump in and get your product across the finish line with clean code and solid architecture. 🗝️ 𝙆𝙚𝙮 𝙥𝙤𝙞𝙣𝙩𝙨 5+ years delivering production-ready full-stack solutions Results-driven: reliable, on-time delivery with high quality Listen first, code second — business goals before buzzwords Clear, proactive communication — I keep you in the loop and hit deadlines Client-oriented partner — I stick around post-launch for updates, scaling, and new features Team collaboration expert across product, design, and QA Excellent time & scope management to keep projects moving ⛳️ 𝙏𝙚𝙘𝙝𝙣𝙞𝙘𝙖𝙡 𝙚𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚 as a Full-stack developer ✓ Next.JS, React, TypeScript, Tailwind CSS, HTML5, CSS3, Zustand, React Query, Material UI, Ant Design ,Shadcn ✓ .Net Core, abp, C#, Entity Framework Core, Node.js, NestJs, Hono, REST APIs , GraphQL, Prisma, Drizzle, TypeORM, Socket.io, WebSockets, SignalR, OAuth 2.0, JWT, WebRTC ✓ PostgreSQL, MSSQL, MySQL, MongoDB, Redis ✓ Supabase, Firebase ✓ ElasticSearch, MeiliSearch, BullMQ ✓ Twilio, Mapbox, SendGrid, Maxio, Stripe, PayPal ✓ NUnit, xUnit, Jest, Postman, Playwright, k6 ✓ Azure, AWS EC2, S3, RDS, ECR ✓ Nginx, Caddy ✓ CI/CD, GitHub Actions, Argo CD, Argo Rollouts ✓ Docker, Docker Compose, Kubernetes, Rancher, RKE2, Helm, Prometheus, Grafana, Loki ✓ Three-layer architecture, Clean Architecture, DDD, Microservices, Repository Pattern ✓ OpenAI APIs, ChatGPT integrations, Chatbot development, AI-driven analytics 🙏Thank you for taking the time to read my Upwork profile. I am excited about the possibility of collaborating on projects where I can contribute my skills, experience, and dedicated work ethic. I am here to provide you with the best possible service tailored to your needs. I look forward to getting to know you better and discussing how I can assist you in your projects.📬 ☎️

✅ Sitecore Headless with React/Next.js, SXA ✅ Umbraco, ContentStack ✅ .Net (Asp.Net / C#), Nodejs ✅ React, Next.js ✅ JavaScript, Typescript, Css, Taildwind Css, HTML I am a full stack developer with over 20 years of experience in creating web content management systems and automated marketing systems using Sitecore and other technologies. I have worked on various projects for clients across different industries and sectors, delivering solutions that meet their needs and expectations. I have a strong knowledge of Sitecore architecture, features, modules, tools, and APIs, as well as other web development technologies such as .NET, C#, HTML, CSS, JavaScript, SQL Server, React, Next.js, etc. Why work with me? 💕Reliable & Accountable -- Consistently deliver on commitments, meet deadlines, and maintain a high standard of work. 💕Strong Technical Breadth & Depth -- Experienced with modern frameworks (React/Next.js, Node.js/.NET), scalable APIs, and both SQL/NoSQL databases. 💕Clean, Maintainable Code -- Focus on clarity, modular structure, and long-term maintainability. 💕Problem-Solving Mindset -- Able to diagnose issues quickly and implement efficient, effective solutions. 💕Collaborative & Communicative -- Work effectively with cross-functional teams and communicate clearly with technical and non-technical stakeholders. 💕Fast Learner & Adaptable -- Stay current with new technologies and best practices to keep systems modern.

I am a seasoned full-stack developer with a strong focus on AI-powered interactions—including AI chatbot development, conversational UX, and intelligent agent integration. I build products from 0 to 1 and quickly diagnose issues in existing systems to improve performance, user experience, and business impact. I deliver maintainable, scalable, and deployable software with end-to-end ownership. Core Expertise (AI & Full-Stack) AI & Intelligent Interactions – Design and implement AI chatbots, voice/text assistants, and natural language interfaces. Integrate LLMs (GPT, Claude, open-source models) with RAG, fine-tuning, and prompt engineering for domain-specific use cases. Build real-time conversation flows, context management, and fallback strategies that feel human and reliable. End-to-End Product Delivery – From discovery and prototyping to deployment and monitoring. I own the full lifecycle, ensuring clean architecture, scalable systems, and predictable timelines. Rapid MVP & Iterative Development – Turn ideas into working products quickly, then iterate based on data and user feedback. Legacy System Stabilization & Refactoring – Improve performance, reduce technical debt, and modernize outdated codebases without disrupting business operations. Frontend-Backend Synergy – Optimize API design, state management, and real-time data flows for seamless UX. Data-Driven & AI-Enhanced Products – Implement analytics, recommendation engines, and AI capabilities that drive engagement and conversion. Tech Stack Frontend: HTML, CSS, JavaScript, TypeScript, TailwindCSS, React/Next.js, Vue/Nuxt.js, Angular Backend: Python (Django, Flask, FastAPI, Scrapy, Scikit-learn), Node.js (Express, Nest.js) Java: JSP, Spring Boot, Nacos, MicroService, JPA, MyBatis, MyBatis-Plus C#: ASP.NET WebForms, ASP.NET MVC, Razor Pages, .NET Core, Entity Framework, Dapper, WinForms PHP: Laravel AI/LLM: LangChain, LlamaIndex, OpenAI API, Anthropic, Hugging Face, vector databases (Pinecone, Milvus, Weaviate), RAG pipelines, conversational memory, speech-to-text / TTS Databases: MongoDB, MySQL, PostgreSQL, SQL Server, Firebase, SQLite Cloud & DevOps: AWS EC2, Microsoft Azure, Docker Collaboration: Git, SVN, Jira, Slack Mobile: Flutter, Ionic, Capacitor, uni-app, Taro How I Work Clear communication, predictable delivery, and transparent progress. I provide daily updates, early risk detection, and flexible engagement—feature-based, milestone-based, or long-term partnerships. I treat your business goals as my own and ensure every line of code adds value. Highlights Projects: SaaS platforms, internal enterprise systems, data-driven web apps, and AI-powered chatbots/assistants for customer support, sales, and internal knowledge retrieval. Accomplishments: Delivered MVPs under aggressive deadlines, stabilized legacy systems with 40%+ performance gains, and launched AI chatbots that reduced support tickets by 30% while improving user satisfaction. If you need a full-stack developer who deeply understands AI interactions and can own delivery from concept to production—with uncompromising quality—let’s talk. I’m ready to build your next intelligent product.

Hi, welcome👏 to my profile! I am an experienced software developer; have work experience for Motorola Solutions Chengdu Branch for nearly ten years as a senior engineer. I started programming with C/C++, Win32 and Visual Studio; have many years of experience in C#. The largest project, in which I've been involved and played a key role, has more than one-million-line count in total; our team has successfully used WPF, WCF, API, Entity Framework, PostgreSQL and Microsoft code generation in the project development, please refer to the C# portfolio below. What I am currently focusing on is web development. I am good at React, Node/Express and ASP.Net Core, familiar with NextJs, MERN stack and Sass. In addition, I have obtained a certification of part-time MBA as well. I would prefer hourly rate tasks 🤝🤝. Thanks & Regards, wish you success!