Integration / API Tester – Core Banking (T24/Temenos) job at Tezza Business Solutions Ltd
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Integration / API Tester – Core Banking (T24/Temenos)
2026-03-17T11:21:39+00:00
Tezza Business Solutions Ltd
https://cdn.greatkenyanjobs.com/jsjobsdata/data/employer/comp_2572/logo/Tezza%20Business%20Solutions%20Ltd.jpg
FULL_TIME
Nairobi
Nairobi
00100
Kenya
Professional Services
Computer & IT
KES
MONTH
2026-03-30T17:00:00+00:00
8

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
  • 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
  • REST/SOAP APIs
  • Postman or SoapUI
  • JSON, XML, and message validation
  • Banking transaction flows
  • Basic SQL skills
  • Bachelor’s degree in IT, Computer Science, or related field
bachelor degree
36
JOB-69b9394373631

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

Click Here to Apply Now

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Job Info
Job Category: Computer/ IT jobs in Kenya
Job Type: Full-time
Deadline of this Job: Monday, March 30 2026
Duty Station: Nairobi | Nairobi
Posted: 17-03-2026
No of Jobs: 1
Start Publishing: 17-03-2026
Stop Publishing (Put date of 2030): 10-10-2076
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