Backend Engineer Java

Kolomoni Microfinance Institution (Gambia) is a CBG-licensed microfinance institution serving customers across The Gambia. We are recruiting a Backend Engineer to build and maintain the services our products run on.

WHAT YOU WILL DO

• Design and develop secure, scalable, maintainable APIs and application business logic in Java.
  
• Design database structures and data-access components, and optimise application and database interactions.
  
• Apply transaction and concurrency management, and idempotency where an operation must not run twice.
  
• Build applications that handle retries, duplicate requests and partial failures safely.
  
• Implement authentication, authorisation and application-security controls, and protect sensitive data in transit, at rest and in logs.
  
• Develop logging, monitoring and audit capability sufficient to reconstruct an incident.
  
• Write and maintain automated tests, participate in peer review, and resolve production defects.
  

Requirements