POS Backend Development Engineer
- 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, 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.

POS Backend Development Engineer