Integration / API Tester – Core Banking (T24/Temenos) at Tezza Business Solutions Ltd

The Integration/API Tester is responsible for validating integrations between the core banking system (T24/Temenos) and surrounding systems such as mobile banking, internet banking, payment gateways, and third-party services. The role ensures seamless, secure, and accurate data exchange across all integrated platforms.

Key Responsibilities

• Design and execute integration and API test cases for T24 interfaces
• Validate APIs supporting channels such as mobile banking, agency banking, and internet banking
• Perform end-to-end testing of transactions across systems
• Validate ISO 8583 / ISO 20022 message formats where applicable
• Test integrations with payment switches, middleware, and third-party systems
• Analyze API documentation and derive comprehensive test scenarios
• Perform data validation between T24 and interfacing systems
• Identify, log, and track defects
• Support SIT and pre-UAT phases
• Collaborate with developers, business analysts, and vendors

Key Requirements

• Bachelor’s degree in IT, Computer Science, or related field
• 3–6 years’ experience in API/Integration testing within banking systems
• Hands-on experience with T24/Temenos integrations
• Strong understanding of REST/SOAP APIs
• Experience with Postman or SoapUI
• Knowledge of JSON, XML, and message validation
• Understanding of banking transaction flows
• Basic SQL skills