Design, develop, and maintain backend systems for the Nigerian POS business, ensuring system stability, scalability, and high performance Collaborate closely with the frontend development team to define API interface specifications, ensuring seamless coordination between frontend and backend Participate in defining system architecture and technology choices, providing feasible technical solutions for business requirements Address technical challenges in system development, ensure code quality and security, and perform code reviews and optimizations Coordinate with the testing team to ensure product quality, participate in system testing, and troubleshooting efforts Stay updated on technology trends, propose improvements and innovative suggestions, and maintain awareness of industry best practices Possesses detailed experience in the Nigerian POS business domain, understanding the interaction flows between institutions and channels, and familiarity with business rules and processes Have expertise in standard protocols related to the POS domain, particularly ISO 8583 and other POS communication protocol standards Assist in resolving critical issues, provide technical support and training to ensure the smooth operation of the system

Qualifications Bachelor's degree or equivalent in Computer Science, Software Engineering, or related field Minimum of 5 years of experience in backend development, with preference for those experienced in POS business development Proficiency in Java programming language, familiarity with Spring Boot framework, and experience in microservices architecture is a plus Experience in database design and optimization, familiarity with relational databases (such as MySQL) Practical experience with technologies like message queues, caching, e.g., Kafka, Redis Familiarity with at least one RPC calling framework, with FeignClient being preferred, knowledge of GRPC, etc Strong object-oriented programming skills, familiar with common design patterns and principles, capable of breaking down and simplifying complex problems Strong problem-solving skills, ability to work in a fast-paced environment while maintaining high efficiency Effective communication skills and teamwork, capable of collaborating with team members from diverse backgrounds