Senior Java Developer (JHB Hybrid)

• Support and maintain the Internal Projects and at Clients where the systems process up to 15 million applications monthly.
• Develop and enhance Java Enterprise Edition applications with JPA persistence.
• Build and maintain Reactive Java VM-based APIs for file processing and verification.
• Implement high-volume payment processing capabilities integrated with Bankserv.
• Develop solutions for account verification, means testing, and payment reconciliation.

• Design and implement payment file generation according to Bankserv specifications.
• Develop reconciliation processes for VET files and EF70 responses.
• Build account referral solutions integrating with commercial banks via Bankserv.
• Implement means testing file processing with multiple banking partners.
• Create audit transaction capabilities for all banking operations.

• Participate in solution architecture definition and modelling.
• Assess current system architecture and recommend improvements.
• Develop functional and technical specifications.
• Design scalable solutions meeting business objectives.
• Provide technical guidance to development teams.

• Skills transfer to CLIENT internal teams.
• Training delivery capabilities.
• Documentation and knowledge management.
• Mentoring Junior Developers.
• Technology innovation and research.

• Java Enterprise Edition (JEE) - Advanced proficiency.
• JPA (Java Persistence API) - Expert level.
• Reactive Java VM development - Strong experience.
• Spring Framework - Comprehensive knowledge.
• RESTful API development - Expert level.

• Oracle SOA Suite 12c components: API Gateway management, SFTP/File transfer protocols, Web Services (SOAP/REST).

• Bankserv integration experience (file formats, protocols.)
• Payment processing systems - Proven track record.
• Financial reconciliation processes.
• Account verification systems.
• Means testing implementations.

• High-volume transaction processing (250K+ transactions/month preferred).
• Payment gateway integrations.
• Bank account verification processes.
• Electronic Funds Transfer (EFT) systems.
• Cash send services implementation.
• Financial audit trails and compliance.

• Experience with Bankserv Africa or similar payment processors.
• National Treasury web service integrations.
• Commercial bank APIs and file-based interfaces.
• Multi-bank payment reconciliation.

• Enterprise Integration Architecture design.
• Service Oriented Architecture (SOA) implementation.
• High-availability system design.
• Scalable application architecture.
• Security-first design principles.

• Requirements gathering and analysis.
• Process mapping and optimization.
• Risk assessment and mitigation.
• Performance tuning and optimization.
• Change Management processes.

• Understanding of financial regulations.
• Data security and privacy principles.
• Audit trail implementation.
• Fraud prevention mechanisms.
• Government sector experience advantageous.

• Banking platform implementations.
• High-volume payment processing projects.
• Government or public sector experience preferred.
• Agile/SDLC methodology experience.
• 24/7 production support experience.

• 80-90% of service requests resolved at 1st Line support level.
• 2-hour Response time for critical issues.
• Continuous improvement and optimization initiatives.

• Strong problem-solving abilities.
• Excellent communication skills (English fluency required).
• Ability to work under pressure with critical systems.
• Team collaboration and mentoring capabilities.
• Client-facing experience preferred.

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