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An expert Full stack developer having experience of 15+ years in working on backend, frontend. Created complex web applications using Java, Php, jQuery, Angular, React and Node.js. - 10K+ hours already worked - Earned 400K+ USD - 100% Job Success - Top Rated Plus - Respond within 2 hours and 7 days a week As a Full stack developer, I love to learn and work on new technologies to stretch myself according to job demands. Looking forward to working with you.

Hi there! 👋 I'm a passionate developer ready to bring your ideas to life with clean, efficient, and reliable solutions. I'm an Expert Python/JavaScript Developer with extensive experience in building AI-powered solutions, chatbots, and scalable web applications. Over the years, I've successfully delivered end-to-end projects using technologies like FastAPI, Django, Node.js, and AWS, integrating advanced AI models such as ChatGPT and Claude. Whether you need a smart chatbot, a robust backend system, or a complete web/API solution — I’m here to turn your ideas into reality. My code is clean, secure, and optimized for performance. By working with me, you get: ✅ Clear communication ✅ Fast and reliable delivery ✅ A fully functional product — from concept to deployment Let’s build something great together!

🚀 I build production-grade AI apps that actually ship on the App Store — not prototypes that die in TestFlight. 100% Job Success across 43 projects, 2,233 hours, and $60K+ delivered on Upwork. Most recent: a full end-to-end AI skincare platform live on the Japan App Store — built solo from Figma to launch. 📱 React Native app (iOS & Android): AI face scan, real-time voice chat via OpenAI Realtime API + WebRTC, skincare routine builder, Stripe + RevenueCat subscriptions, Google Maps clinic finder. ⚙️ FastAPI backend: 20+ API route groups, JWT auth, RAG-powered recommendation engine (LangChain + Pinecone), Stripe payment processing. 🧠 AI image analysis microservices: dual-mode skin analysis pipeline combining MediaPipe / OpenCV computer vision AND GPT-4 Vision, with async Celery job queue and S3 storage. What I do, end-to-end: ✅ AI / LLM: OpenAI / Anthropic / LangChain / RAG (Pinecone) / Realtime Voice AI / Computer Vision ✅ Mobile: React Native (Expo) / iOS / Android / Stripe / RevenueCat / In-App Purchase / Push ✅ Backend for AI: FastAPI / NestJS / PostgreSQL / Vector DBs / Celery ✅ Infrastructure: AWS / Docker / Redis / CI/CD I work best with founders and product teams who need an engineer who can take an AI idea from Figma to App Store solo — including the LLM/RAG/agent layer, payments, and infra — without hand-holding. If your project has an AI component (chatbot, RAG, face analysis, voice, agent workflow) and a real ship date, message me with the rough scope. I usually reply within a few hours and can offer a 1–3 day free pilot so we can validate fit before committing to the full build.

A results-oriented Salesforce Specialist with nearly 8 years of project experience, combining technical development and business analysis backgrounds. Proficient in designing, developing, and implementing customized Salesforce solutions based on business requirements, covering requirement analysis, process optimization, system integration, and user training. Experienced in collaborating with cross-functional teams and driving digital transformation. Hold a 10-year U.S. B1/B2 visa, facilitating international travel and project support. Salesforce Certifications: 1. Salesforce Certified Administrator 2. Salesforce Certified Platform Developer I 3. Salesforce Certified Platform Developer II 4. Salesforce Certified JavaScript Developer I 5. Salesforce Commerce Cloud Developer Certification 6. Salesforce Marketing Cloud Administrator 7. Salesforce Health Cloud Accredited Professional

::: Self Introduction ::: Highly motivated and enthusiastic System Architecture & Full Stack developer focus on software development with more than 15 years. I am proficient in requirement analysis, System design, Software development, Continous integration and Task management. ::: Programming experiences ::: 🛢️ BACKEND DEVELOPMENT: Java, Spring, Spring Boot, MyBatis, MySQL, RabbitMQ, Golang, Gin. 🖥️ FRONTEND DEVELOPMENT: React, HTML5, CSS, Tailwindcss, Next.js, WebAssembly 📱 MOBILE DEVELOPMENT: Flutter, React Native, Google & iOS app deployment workflow and policy. ⚒️ DEVOPS: Jenkins, Git, Shell, Python, Kubernetes, Ansible. 🧑‍💻 SOFT SKILL: Requirement analysis, System design, Complicated problem breakdown, Task management. ::: Achievements ::: 🏆 Successfully deployed 5 apps to Google Play Store, and 15 apps to apple store. 🏆 Successfully Design, Develop and Deployed an IoT Based popcorn auto seller machine management platform to our customer, which has been get more than 70000 clients. The system is build with Golang + Gin + Gorm + Postgresql. 🏆 Successfully Design, Develop and Deployed an IoT based boiler management system to 3 customers, and manage more than 50000 boilers and get more than 20GB history data in Time series database for futther data analysis. The system is build with Spring Cloud and micro-service pattern. 🏆 Build up Company IT development workflow and Devops infrastuture from 0 to hero. Build a whole process for system deploy automation with Gitlab, Jenkins, Harbor, Kubernetes, Aliyun. Hope to have the opportunity to work together to create a better future. Cheers.

I have been involved in front-end development of some medium sized web management systems and have 5 + years of front-end development experience. - ★★★ Vue/JavaScript/HTML/CSS - ★★ Node/React/jQuery/Git - ★Python