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Alan S. Status: Offline
Shenzhen, China
100% Job Success
Top Rated

Desktop,Embedded,Android ,NFC,Payment, EMV,RFID,PKI,FIDO,SmartCard

Senior Software Architect | NFC/RFID Solutions Expert | EMV Payment Specialist | IoT Solutions Engineer with 15+ years of expertise in contactless technologies and payment systems. Deep specialization in NFC reader/writer implementations, RFID system architecture, and secure payment solutions. Proven track record in delivering NFC-enabled payment terminals, RFID asset tracking systems, and IoT solutions using ESP32. Expert in EMV contactless payment integration, digital wallets, and implementing secure NFC communication protocols across mobile, desktop, and embedded platforms. NFC & Contactless Technologies: - Digital Wallet Development: Android NFC APIs, iOS CoreNFC, HCE - Smart Card Integration: JavaCard, Global Platform, MIFARE, DESFire - Security Protocols: PKCS, FIDO, Secure Element Integration - Reader Solutions: NFC Reader/Writer, Card Emulation, P2P Embedded Systems & IoT: - ESP32 Development: WiFi/BLE Integration, Real-time Applications - IoT Solutions: Smart Devices, Sensor Integration, Remote Management - Firmware Development: Bootloader, OTA Updates, Security Features - RTOS: FreeRTOS, Custom Scheduler Implementation - Industrial Applications: Vending Machines, POS Terminals, Access Control Development Capabilities: - Mobile & Desktop: Android, iOS, Windows, Linux, Qt - Programming: C/C++, C#, Java, JavaScript, TypeScript - Frameworks: .NET, Node.js, React Native - Backend Services: REST APIs, Database Design, Cloud Integration EMV & Payment Solutions: - EMV Payment: Level 1 & 2 & 3 Implementation, EMV Kernel Development - Payment Processing: Terminal Integration, Host Communication - Security Compliance: PCI-DSS, PBOC, EMVCo Certification - Transaction Handling: Online/Offline Authorization, Key Management - Payment Applications: Contact/Contactless, Mobile Payment Key Projects: - Developed EMV L2&L3 kernel for contact/contactless payment terminals - Created ESP32-based IoT payment solution with NFC capabilities - Implemented cross-platform digital wallet with EMV payment support - Designed secure bootloader and OTA update system for ESP32 devices - Built custom firmware for EMV-certified payment terminals
Work history
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Skills

Skills

  • Android
  • JavaScript
  • C
  • C#
  • Java
  • C++
  • RESTful API
  • POS Terminal
  • RFID
  • NFC
  • Qt Framework
  • NodeJS Framework
  • WeChat
  • Payment Processing
  • Embedded Linux

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