Senior Java Developer - (Sandton - Hybrid) at Datafin Recruitment

ENVIRONMENT:

• A leading innovation, services, and support partner to retailers, retail banks, and payment service providers across South Africa and key African markets.
• They are seeking a Senior Java Developer who will develop and maintain market-leading Java-based Point of Sale (POS) solutions for large-scale retail organizations.
• This role requires technical leadership, hands-on development, and collaboration with stakeholders to deliver high-performance, scalable, and reliable software that enhances customer experience.

DUTIES:

• Develop and maintain market-leading Java-based Point of Sale (POS) solutions for large-scale retail organizations, ensuring high performance, scalability, and reliability.
• Collaborate with stakeholders to design, prototype, and implement new software solutions and functional extensions that align with business requirements and improve customer experience.
• Lead the development and integration of SAP Retail solutions, including gaining a strong understanding of SAP’s integration concepts and architecture.
• Integrate third-party solutions and services using protocols and technologies such as SOAP, REST, and iDocs to extend POS system functionality.
• Develop and maintain intuitive and responsive user interfaces using Java SWING, HTML5, and CSS to ensure an engaging and efficient user experience.
• Interface with various hardware components, including card terminals, POS printers, fingerprint sensors, and other peripheral devices.
• Design and generate reports using tools like Jasper Reports and iText and manage printing functions such as receipt and line printing.
• Create and maintain technical documentation including UML diagrams, development wikis, SDK guidelines, and other instructional materials for internal and external use.
• Build, mentor, and lead a team of developers, fostering a collaborative and high-performing environment focused on continuous improvement and innovation.
• Stay abreast of emerging technologies and trends, continuously enhancing skills and bringing new tools and methodologies to improve product offerings.
• Communicate effectively across all levels of the organization through written documentation, technical presentations, and interpersonal discussions.
• Ensure high code quality and maintainability through best practices in coding, testing, code reviews, and deployment.
• Drive the full software development lifecycle, from requirements gathering and design through to deployment and support.
• Identify performance bottlenecks and propose solutions, ensuring optimal system efficiency in production environments.
• Perform any other related duties as assigned

REQUIREMENTS:

Qualifications & Experience

• Degree in Computer Science, Information Systems, or equivalent experience.
• Extensive experience in Java development, preferably within retail, payments, or POS environments.
• Proven experience with SAP integration concepts and architecture.
• Strong understanding of SOAP, REST, and iDocs for third-party integrations.

Technical Skills

• Java (core development)
• SAP integration concepts
• SOAP / REST / iDocs
• Java SWING, HTML5, CSS
• Jasper Reports / iText
• Hardware integration (card terminals, POS printers, biometric devices)
• UML and technical documentation

Leadership & Soft Skills

• Team leadership and mentoring abilities.
• Strong communication and stakeholder engagement skills.
• Problem-solving mindset with attention to performance optimization.
• Commitment to code quality and best practices.

ATTRIBUTES:

• Collaborative and innovative.
• Detail-oriented with a focus on reliability.
• Adaptable to evolving retail and payment technologies.
• Proactive in identifying improvements and solving challenges