Hire the Best Android Developers
in China

I've been building mobile apps for over 8 years. I cut my teeth at top Chinese tech companies like Tencent Music and NetEase Games. That's where I learned how to ship high-performance Android apps and smooth cross-platform experiences using React Native and Flutter. I'm also a full-stack developer, so I won't just throw code over the wall. I understand the whole pipeline, including the backend with Node.js. I've shipped apps across Google Play, iOS, and WeChat Mini Programs. You can check out my work here: a custom suit website I built, the Padel Spot app for Android and iOS, and a WeChat Mini Program for Paijitang.

Senior Software Architect specializing in secure systems and IoT Sec solutions with 15+ years of experience. I architect and deliver end-to-end nfc solutions, from embedded firmware to cloud-based backend systems. 🎯 CORE EXPERTISE IOT Systems - NFC Solutions: Reader/Writer, HCE, Digital Wallets (Android/iOS) - Smart Cards: JavaCard, MIFARE, DESFire, NTAG,Global Platform,GP,JCOP,Secure Element - Security: PKI, FIDO, Secure Element,HSM, PCI-DSS Compliance - RFID Systems: Asset Tracking, Access Control - EMV Payment: L1/L2/L3 Kernel Development & Certification - Microcontrollers: ESP32, STM32 (WiFi/BLE, RTOS) - Firmware: Secure Bootloader, OTA Updates, Real-time Systems - Industrial Applications: POS Terminals, Vending Machines, Access Control - IoT Architecture: Sensor Integration, Remote Management Full-Stack Development - Backend: Node.js, REST APIs, Database Design (SQL/NoSQL) - Cloud Services: Firebase, AWS/Azure/GCP Deployment - Mobile: Android (NFC APIs), iOS (CoreNFC), React Native - Desktop: Qt, .NET, Cross-platform Applications - Languages: C/C++, JavaScript/TypeScript, Java, C# 💼 SIGNATURE PROJECTS ✅ ESP32 IoT Systems - Created NFC-enabled payment solution with cloud integration - Built secure firmware with OTA update capabilities - Integrated Firebase for real-time data synchronization ✅ Cross-Platform Digital Wallet - Developed mobile wallet supporting EMV contactless payments - Implemented HCE and Secure Element integration - Built Node.js backend with Firebase authentication ✅ Enterprise RFID Solutions - Designed asset tracking systems for industrial clients - Implemented access control with NFC/RFID readers - Deployed cloud-based management platform ✅ EMV Payment Terminal Solutions - Developed EMV L2 & L3 kernel for contact/contactless terminals - Achieved EMVCo certification for payment applications - Implemented secure key management and transaction processing 🔧 TECHNICAL STACK Hardware: ESP32, STM32, NFC Readers, RFID Systems Backend: Node.js, Express, Firebase, REST APIs Database: MongoDB, PostgreSQL, MySQL, Firestore Cloud: Firebase, AWS, Azure, Docker deployment Mobile: Android, iOS, React Native Desktop: Qt, .NET, Windows/Linux Security: PKI, FIDO, PCI-DSS, Secure Boot 📋 CERTIFICATIONS & STANDARDS EMVCo, PCI-DSS, PBOC, Global Platform, ISO 14443 I deliver production-ready solutions with clean code, comprehensive documentation, and ongoing support. Available for both fixed-price projects and long-term contracts.

Results-driven Flutter developer with 2+ years and Java/Kotlin with 5+ years of experience in designing, developing, and deploying scalable, efficient, and visually appealing mobile applications for Android and iOS. Proven expertise in Clean Architecture, state management (Provider, GetX, BLoC), AI ChatBot integrations and so on. Key Skills:: - Flutter (2+ years) - Java+Kotlin (5+ years) - Clean Architecture - State Management: GetX, Provider, BLoC - AI Chat Bot Integrations (e.g., Gemini) - Android Development - MVC/MVP / MVVM - Local Data bases (Realm/Room / SQLite / SharedPreferences) - JetPack components - Strong problem-solving skills and attention to detail Project Experience: Successfully completed 20+ projects using Flutter, Java or Kotlin, with a focus on: - E-commerce and shopping apps - Social media and community platforms - Education apps - Video Player apps Technical Expertise: - Programming languages: Dart, Java, Kotlin - Development frameworks: Flutter, Android SDK - Databases: Firebase, SQLite, MySQL - APIs: RESTful - Version control: Git What I Bring: - High-quality, scalable, and maintainable code - Efficient and timely project delivery - Strong communication and teamwork skills - Continuous learning and adaptation to new technologies

Need a Python automation, AI integration, or Android development task completed with clear and reproducible results? I build Python automation workflows, integrate LLM and third-party APIs, and develop or troubleshoot Android applications. I can help with: • Python automation and data-processing scripts • OpenAI, Claude, Gemini, and third-party API integration • AI-agent workflows with structured outputs and validation • Browser automation, web data extraction, and screenshot capture • Android development, API integration, and bug diagnosis • Next.js and TypeScript AI prototypes Recent project evidence includes a cross-market web-evidence workflow with 30/30 clean records, an agent evaluation project ranked #1 with 96.0/100 across 33 evaluations, and a full-stack AI travel prototype delivered during a 36-hour hackathon. My preferred way to start is with a small, clearly defined milestone. Send me your requirements, sample input and expected output, API documentation, or error logs. I will help define the implementation, acceptance criteria, and delivery plan. You will receive working code, reproducible instructions, validation results, and clear handoff documentation.

★ Flutter Developer. 3+ Years ★ Android Developer. 10+ Years ★ Java Backend Developer. 4+ Years ★ Web Developer. 2+ Years ★ Department Management. 10+ Years Recent project: ★ Financial payment app From 0 to 1, , 200W orders per day, and won the best project award of the whole group. ★ Medical industry app, android+ios, covering im, live broadcast, video comprehensive functions

Your Trusted Sourcing & Custom-Tech Partner in China | From Concept to Global Delivery Hi, I'm Sam, your on-the-ground expert in Guangzhou, China. I bridge the gap between your business ideas and high-quality, cost-effective manufacturing and fulfillment. I provide end-to-end solutions to streamline your supply chain and bring your products to the world. My Core Services: 1. Custom Tech & Product Development Turn your ideas into market-ready products. I leverage a professional network of factories and tech teams to deliver bespoke hardware and software solutions. Hardware: Specializing in custom-built devices like smart doorbells, video surveillance cameras, and other IoT products. Software: Full-cycle development including WeChat Mini-Programs, B/S enterprise software, and business analysis to ensure the final product meets your exact needs. Proven Track Record: Over the past decade, I have successfully managed the development of software and hardware products worth over $10 Million USD. 2. Reliable Bulk Sourcing & Procurement Source top-quality products directly from China's manufacturing heartland. I find you the best balance of price and quality. Foshan: World-renowned furniture & ceramics. Shenzhen & Guangzhou: Electronics, toys, and tech components. Zhongshan: Premium lighting & hardware. Dongguan & Huizhou: Garments and consumer electronics. 3. Integrated Logistics, Warehousing & Fulfillment I handle the complexities of shipping and storage so you can focus on growing your business. Global Shipping: A network of 20+ reliable logistics partners to ship worldwide. Storage Solutions: Flexible warehouse options in Guangzhou, from small to large scale. Value-Added Services: In-house product labeling, packing, and direct shipping to save you time and labor costs. Let's Partner for Success! My goal is to make your entry into or expansion in the global market seamless and successful. Let me handle the production and logistics, while you focus on marketing and sales. Ready to get started? Send me a message to discuss your project! #SourcingAgent #ChinaManufacturing #CustomHardware #SoftwareDevelopment #GlobalLogistics #Fulfillment #TechSourcing #ImportFromChina