Android Engineer; POS

Android Payments Engineer

PBT Group is seeking a skilled Android Payments Engineer to join a high-performing Payments Technology team. The successful candidate will contribute to the development and maintenance of card machine applications running on Android-based POS devices within a secure, high-throughput financial services environment.

This role requires strong native Android expertise combined with deep payments domain experience
, particularly in card-present transactions and payment terminal integrations.

• Design, develop, and maintain Android applications for POS (Point of Sale) devices
• Integrate and support payment terminal hardware components such as card readers, NFC modules, and PIN pads
• Implement and maintain EMV-compliant transaction flows (contact and/or contactless)
• Work with ISO 8583 messaging for financial transaction processing
• Ensure robust, secure, and performant payment application behaviour
• Collaborate with cross-functional teams including backend services, infrastructure, and product stakeholders
• Troubleshoot and resolve issues across embedded hardware/software environments
• Contribute to code reviews, best practices, and continuous improvement initiatives

• Strong proficiency in native Android development using Java and/or Kotlin
• Proven experience working with EMV protocols (contact and/or contactless payments)
• Solid understanding of ISO 8583 financial messaging standards
• Hands-on experience integrating Android applications with hardware peripherals (e.g. card readers, NFC, PIN pads)
• Experience using AIDL / IPC mechanisms for hardware communication
• Demonstrated experience in payments, fintech, or financial services environments

• Exposure to cross-platform frameworks (React Native, Ionic, Capacitor) in addition to native Android
• Understanding of PCI PTS and/or PA-DSS compliance standards
• Experience with cryptographic key management (e.g. DUKPT, MK-SK)
• Prior experience working with payment terminal vendors or fintech organisations (e.g. PAX, Ingenico, Verifone, ECentric, Synthesis)
• Native Android development is non-negotiable
  ; candidates with primarily cross-platform experience will not be considered
• Candidates must be able to demonstrate hands-on EMV or payment terminal experience
• This is a specialist role within payments infrastructure, not a general mobile development position

Contract engagement with the possibility of permanent employment based on performance and business requirements. Competitive market-related rate (to be determined by PBT Group).