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Nair Systems is currently looking for Base24 Tester for our Qatar operations with the following Skill set and terms & conditions. Skills and Experience: Experience : More than 3 years in Banking domain as tester • The role involves testing BASE24 Classic/BASE24-eps applications integrated with Visa and Mastercard networks, ensuring high availability, security, and accuracy of financial transactions. • Key Skills & Competencies: • Able to support the manual and automation testing • Base24 and settlement testing knowledge • Comprehensive Test Cases preparation for both Manual and Automation testing • Strong understanding of Cards lifecycle (debit/credit/prepaid), Merchant Acquiring, and 3D Secure flows. • Hands-on expertise with Base24, Prime 4, MPGS, payment gateway APIs, and settlement engines. • Knowledge of SQL, PL/SQL for data validation, analysis, and reconciliation reports. • Experience working in Agile/Scrum frameworks with tools like JIRA and Confluence. • Excellent documentation and stakeholder management skills. • Familiarity with ISO 8583 message formats and card scheme mandates. • Understanding of dispute resolution systems (Visa Resolve Online, Mastercard DDRS). • Perform functional, integration, system, regression, and UAT testing for BASE24 ATM and POS applications. • Validate ATM transactions such as cash withdrawal, balance inquiry, mini statement, PIN change, and fund transfer. • Test POS transactions including purchase, refund, reversal, and pre-authorization • Validate Visa and Mastercard transaction flows, including authorization, clearing, and settlement • Analyze and validate ISO 8583 message formats, fields, and bitmaps • Verify transaction routing, switching, and host responses in BASE24 • Perform end-to-end testing across ATM/POS → Switch → Network → Issuer/Acquirer • Validate EMV, magstripe, and contactless transactions • Test exception scenarios: reversals, timeouts, partial approvals, stand-in processing • Use transaction simulators and tools to generate and monitor test transactions • Review logs, journals, and reports to identify defects • Log, track, and retest defects using defect management tools (e.g., JIRA) Domain Expertise: Cards, POS, Payments, Merchant Acquiring, Dispute Management, Reconciliation, Digital Transformation Joining time frame: 2 weeks (maximum 1 month) Should you be interested in this opportunity, please send your latest resume at nishanthini.suda@nairsystem ...