Responsibilities
- Lead the design and architecture of POS terminal solutions across platforms, including hardware and payment-system integration.
- Develop and maintain architecture documents and diagrams for POS terminal systems.
- Make software architecture decisions involving payment technologies, EMV standards, and hardware compatibility.
- Lead development of POS-related applications, including mobile applications for repair scheduling and maintenance.
- Optimize payment-processing performance and security, including EMV protocols, and ensure product stability and reliability.
- Conduct code reviews and enforce engineering best practices for mobile and embedded systems development.
- Collaborate with product and engineering teams to align technical solutions with market and business goals.
- Monitor system performance, troubleshoot issues, mentor engineers, drive process improvements, and participate in hiring.

Requirements
- At least 8 years of experience in POS terminal system design, architecture, and development.




- Strong Android Native development expertise using Java or Kotlin, with deep knowledge of Android-based POS solutions.
- Experience with cross-platform mobile development such as Flutter; familiarity with C and JavaScript POS platforms is a plus.
- Strong knowledge of EMV security protocols, chip-based transactions, encryption, and key management.
- Experience integrating POS hardware such as card readers, pin pads, printers, and other peripherals.
- Deep understanding of payment-system architecture and integrations with payment processors and gateways.
- Knowledge of software quality assurance principles and their application in financial systems.
- Strong problem-solving, communication, leadership, mentoring, and process-improvement abilities.

Benefits
- Attractive salary, pension, health insurance, annual bonus, and other benefits.
- Learning and development environment with knowledge sharing, training, and regular internal technical talks.

📌 Principal Mobile Engineer (España)
🏢 Moniepoint
📍 España