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Vacancy title:
Integration / API Tester – Core Banking (T24/Temenos)
[Type: FULL_TIME, Industry: Professional Services, Category: Computer & IT]
Jobs at:
Tezza Business Solutions Ltd
Deadline of this Job:
Monday, March 30 2026
Duty Station:
Nairobi | Nairobi
Summary
Date Posted: Tuesday, March 17 2026, Base Salary: Not Disclosed
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JOB DETAILS:
Role Overview
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
Work Hours: 8
Experience in Months: 36
Level of Education: bachelor degree
Job application procedure
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