Java Developer (Intermediate) – Payments (12-Month Contract) at DeARX Services (Pty) Ltd

• We are seeking an Intermediate Java Developer with banking and payments experience to join a dynamic technology team responsible for developing and enhancing high-volume transaction processing systems within a leading financial services environment.
• The successful candidate will work on mission-critical payment platforms, contributing to the development of secure, scalable, and high-performance solutions that support various payment channels and financial transactions.
• This role is suited to a developer who thrives in fast-paced banking environments and has experience working with complex integrations, payment messaging, and distributed systems.

Key Responsibilities

• Design, develop, and maintain Java-based applications supporting payment processing and banking services.
• Develop and enhance microservices and RESTful APIs used across payment platforms.
• Participate in building solutions supporting electronic payments, transaction processing, and banking integrations.
• Work with high-volume transaction systems ensuring scalability and reliability.
• Integrate internal banking platforms with external payment networks and third-party systems.
• Participate in Agile development processes, including sprint planning, stand-ups, and retrospectives.
• Perform code reviews, testing, and debugging to ensure high-quality code delivery.
• Collaborate with Solution Architects, Business Analysts, QA engineers, and DevOps teams.
• Assist with production support and troubleshooting of payment systems.

Technical Skills & Experience Required

Core Development Skills

• 3 – 6 years of hands-on Java development experience within enterprise environments.
• Strong proficiency in Java (Java 8 / 11 / 17+).
• Experience developing applications using Spring Framework and Spring Boot.
• Solid experience in RESTful API design and development.
• Experience building and supporting microservices-based architectures.
• Strong experience working with relational databases such as Oracle, PostgreSQL, or SQL Server.
• Proficiency with Git or other version control systems.
• Experience working with CI/CD pipelines and modern software delivery practices.

Banking / Payments Domain Experience

• Proven experience working within banking, fintech, or payment processing environments.
• Exposure to high-volume transaction processing systems where reliability, scalability, and performance are critical.
• Experience working with financial transaction platforms or services such as:
• Electronic Funds Transfer (EFT)
• Card payment processing
• Real-time payment systems
• Payment gateways
• Transaction switching platforms
• Digital banking platforms

Payment Messaging & Standards (Advantageous)

Knowledge or experience working with payment messaging standards, including:

• ISO 8583
• ISO 20022

Integration & Messaging Technologies

Experience with enterprise integration or messaging technologies such as:

• Apache Kafka
• IBM MQ
• RabbitMQ
• SOAP and REST-based integrations
• Enterprise Service Bus (ESB) platforms