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Senior Java Engineer - Payment Core

Unlock employer Abu Dhabi, United Arab Emirates Posted: 05 Feb 2026

Financial

  • Estimate: $60k - $80k*
  • Zero income tax location

Accessibility

  • Office Only
  • Apply from abroad
  • Visa Provided

Requirements

  • Experience: Senior
  • English: Professional

Position

We are looking for a Senior Java Engineer focused on payment channel integration and development. You will design, develop, and optimize transaction channels with payment gateways, acquiring banks, and settlement institutions, ensuring high-performance, secure, and reliable transactions, while enabling fast onboarding of new channels.

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Responsibilities:

  • Design and develop payment channel interfaces, including ISO 8583 socket channels and HTTP channels.
  • Implement and maintain channel-specific security mechanisms, such as encryption, message signing, token, or certificate-based authentication.
  • Build configurable and scalable channel integration frameworks to accelerate new channel onboarding.
  • Optimize multi-channel transaction flows to improve success rates and processing efficiency.
  • Collaborate with the team on payment system features, conduct code reviews, and promote best practices.

Requirements:

  • Bachelor’s degree or above in Computer Science or a related field, with 5+ years of Java backend development experience.
  • Proficient in Java (JDK 8+), Spring Boot, and microservices architecture.
  • Experienced in payment channel integration (ISO 8583 socket, HTTP) and channel-specific security mechanism design.
  • Familiar with message queues (RabbitMQ) and caching systems (Redis).
  • Familiar with databases (MySQL preferred) and query optimization.
  • Proven knowledge of object-oriented design principles, SOLID, and clean code.
  • Proven experience in designing high-performance and scalable payment systems, including multi-threaded and concurrent processing.
  • Experience in the payment industry (payment gateways, PCI compliance preferred).
  • Strong communication, problem-solving, and teamwork skills.

Location: Abu Dhabi, Abu Dhabi Emirate, United Arab Emirates

Work Conditions: On-site, Full-time.

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