Hire the Best Koa Developers
in China

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.

🔹 Contact Me If You Want 🔹 🧩 Chrome Extensions 📱 Mobile Apps (iOS & Android) 🌐 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 5 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! ------------------------------------------------------------------------------------------------------------------ 📱 Mobile App Development 📱 I build cross-platform mobile apps with React Native, delivering native-quality experiences for both iOS and Android from a single codebase: 🚀 Cross-Platform Efficiency: One codebase, two platforms—faster delivery and lower cost. 🔗 Seamless Integrations: REST/GraphQL APIs, push notifications, authentication, and third-party services. 🎨 Polished UX: Smooth animations and responsive layouts that feel native on every device. 📦 End-to-End Delivery: From concept to App Store and Google Play deployment. ------------------------------------------------------------------------------------------------------------------ 💻 Website & Web App Development 📱 As a front-end developer with 10+ 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, mobile development, 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!

I’m a front-end developer with a strong passion for creating visually appealing and intuitive user interface.With over 3years of experience in the industry,I specialize in HTML, CSS, and JavaScript,along with modern frameworks like React,Vue,express,koa and so on.

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

I'm a full-stack developer with experience for ten+ years on javascript, typescript. Living in east 8 time zone

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.