Hire the Best Koa Developers
in China

🔹 Contact Me If You Want 🔹 🧩 Chrome Extensions 🌐 Websites and Web Apps 🖥 Front-End Solutions in React, Next.js, and Vue 🔗 Full-Stack Development, Database, and API Integrations 🧠 IT, Design, and Management Expertise ------------------------------------------------------------------------------------------------------------------ 📗 Chrome Extension Development 📘 With over 3 years of experience in Chrome extension development, I specialize in creating high-quality, efficient extensions tailored to your needs: 💡 Proven Expertise: Skilled in using Plasmo, WXT, and Vite to create seamless extensions. 🌟 100% Client Satisfaction: Successfully completed 10+ projects on Upwork, earning top reviews. 🛠️ Custom Solutions: From automation to advanced API integrations, I design extensions to streamline workflows and maximize efficiency. 👉 Ready to scale your productivity? Let’s make it happen—contact me today! ------------------------------------------------------------------------------------------------------------------ 💻 Website & Web App Development 📱 As a front-end developer with 8+ years of hands-on experience, I craft scalable, user-friendly web applications that deliver results: ✅ Built 100+ websites using React.js and Vue.js for diverse industries. 🚀 Maintained 10+ Next.js projects, optimizing for performance and scalability. 🎨 Expert in creating responsive designs that offer exceptional user experiences. Let’s build your dream web app—whether it’s starting fresh or improving what you already have. ------------------------------------------------------------------------------------------------------------------ 🌟 Why Work with Me? 🌟 ✅ Client Success Focus: Your satisfaction is my top priority—I’ll work closely with you to ensure your vision becomes reality. ✅ Versatile Expertise: Skilled in front-end frameworks, full-stack development, API integrations, and Chrome extensions. ✅ Proven Track Record: My Upwork projects maintain a 100% success rate. ------------------------------------------------------------------------------------------------------------------ 🤝 Ready to Work Together? If you’re looking for a dedicated and skilled developer to turn your ideas into reality, let’s connect today and discuss your project!

- Frontend / Fullstack Engineer with 10+ years of experience building scalable web and mobile applications. - Strong background in modern frontend architecture (React, Vue, TypeScript) and hands-on experience with AI-powered products and LLM applications. - Proven ability to lead projects from 0 to 1, deliver production-ready systems, and collaborate effectively in remote teams. - Experienced in using AI-assisted tools to improve efficiency and quality. Skills: - Frontend: React, Next.js, Vue, Nuxt.js, TypeScript, Tailwind CSS - Mobile: React Native (Expo), Flutter - Backend: Node.js, Koa, MongoDB, Strapi, Supabase - Testing: Playwright, Jest - AI & Tools: LLM applications, AI-assisted coding (Cursor, Codex, etc)

✅ 8+ years of professional frontend developer experience. ✅ 3+ years of professional fullstack developer experience. ✅ Tech Stack : React.js, Vue.js,Next.js,Nuxt.js,Node.js,TypeScript,JavaScript,Koa, Webpack,Git,Vercel .etc, Prisma, PostgreSQL, MySql, Mongodb ✅ Worked for several Fortune 500 companies In short, the software services I can provide: 🐎 Frontend Developer 🐝 Fullstack Developer 💊 Performance Optimization 🐾 CSS/JS Animation 📱 WeChat Mini Program/App 🐜 Alipay Mini Program 🔧 CI/CD Pipeline Configuration 💢 Code Review

Hi. there👏. I have 9+ years of experience in Web and Backend development ( React, Vue, Next, Nuxt, Node, React Native, Plasmo). My Objective is to create excellent web apps. With the latest technologies I will implement your idea into the ready to market product. I take care of requirement gathering, development, client communication, managing deliveries etc My Skill-set includes: - Expertise in Web development using MERN (MongoDB, Express, React, and Node.js ) - Expertise in Web development using MEVN (MongoDB, Express, Vue, and Node.js ) - Expertise in Web designing in using HTML, CSS - Backend for Web application/web services development using Node.js/Python/MySQL/MongoDB - Expertise in Chrome Extension development using Plasmo or Javascript - Expertise in App development using React Native - Expertise in testing using Vitest and Jest Normally use SVN, Git, Bitbucket, and Github for version control

By working 5+ years, I've mastered JavaScript and got extensive and deep knowledge of Node. 🌟🌟🌟 SKILLS 🌟🌟🌟 👉 Back-end : NodeJS, ExpressJS, Socket.io, Meteor, Koa, Restify 👉 Front-end : ReactJS, AngularJS 1.x/2, VueJS 👉 Database : MongoDB, Mysql, Postgresql, SQLite, Redis 👉 Operating systems: Linux, Windows, OS X 👉 3rd party APIs : Facebook API/Twitter API/Google APIs/Twilio API/Stripe API/Paypal API/Payment Processor/Bitcoin/Live Chat Process Work Ethic ✓ Honest and hard-working attitude on every projects and services ✓ Agile/Scrum methodology and take best app design patterns/practices ✓ Do the best to meet client's expectations and requirements ✓ Always hunger to learn the most up-to-date technologies and learn fast Being a talented and passionate developer with FULL-TIME AVAILABILITY, I love to work for a LONG-TERM relationship with reasonable clients. If you need a developer like me, PLEASE do not hesitate to get in touch me!!! Thank you.

Proficient in Web, App, Nodejs and Python development. Can work independently on large web applications and mobile apps. 5+ years of experience as a senior developer. Available for Short-term/long-term contract work or part-time.