Senior Software (Java) Engineer -POS Applications at PalmPay

Job Responsibilities

• 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, 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.
• Possess 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, ensuring 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, 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.