Senior Backend Software Engineer (Java, Spring Boot, RESTful APIs, Fintech) (Cape Town - Hybrid)

Whatjobs (Cape Town WC, South Africa) Follow 3 days ago

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ENVIRONMENT: Our client is a leading international gaming, leisure, and entertainment group offering exciting and entertaining customer experiences, in venues or online. They are looking for a Senior Backend Engineer to join their Fintech team who are responsible for the core, high-throughput processing services and 3rd party payments integrations. You'll design and own the backend systems powering deposits, withdrawals, and real-time transaction processing, where correctness, speed, and regulatory integrity are non-negotiable. They are at an exciting inflection point: actively experimenting with AI across the SDLC and looking for engineers who want to help shape what that looks like in practice - not just adopt tools, but influence how the team thinks, builds, and ships. DUTIES: • Design and Development: Create robust, efficient, and scalable backend services using Java and Spring Boot with a focus on accuracy, idempotency and fault tolerance. • API Development: Design, build, and maintain secure APIs for web and mobile applications. • Performance and Security: Ensure application performance, scalability, and security best practices. • Domain Ownership: Drive the low-level architecture of core flows - ensuring compliance with regulatory requirements. • Cloud Integration: Collaborate with various teams to integrate cloud services into their backend infrastructure. • Code Quality: Write high-quality, maintainable code that adheres to industry standards. • Mentorship: Support junior and mid-level team members, conduct code reviews, and foster a culture of continuous improvement. • AI-Augmented Development Practices: Champion the adoption of AI and agentic tools to accelerate the engineering lifecycle across the team. Define guardrails, evaluate tooling, and upskill the team on responsible AI-augmented engineering. • Modernising legacy stored procedures into Spring Boot services. REQUIREMENTS: • 7 years of professional experience as a Backend Engineer. • Experience in high-volume, low-latency transaction processing. • Experience showing strong problem-solving skills and a passion for creating user-centric solutions. • Core Java proficiency. A strong command of the Java language, including object-oriented programming, design patterns, • exception handling, and memory management. • Spring Framework (including Spring Boot) - In-depth knowledge of Spring, especially Spring Boot for building efficient and scalable backend applications. • Proficiency in designing and implementing RESTful APIs. • Experience in event-driven architecture. • Experience in industry-standard CI/CD implementation. • Bachelor’s degree in software Engineer, Computer Science, Engineering or equivalent Nice to have • Exposure to PCI-DSS environments and controls • Experience integrating with payment providers.

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