QA Engineer

JOB DESCRIPTION Quality Assurance Engineer Position Overview We are looking for an experienced Quality Assurance Engineer to join our Payments Engineering team supporting the Card Issuing platform. The ideal candidate will bring strong hands-on testing expertise across Card Management Systems (CMS), ISO 8583 transaction flows, network authorizations (Mastercard / Visa / RuPay), and UPI rails. You will own end-to-end quality for critical payment journeys -- combining manual rigor, robust automation, and performance validation -- to ensure secure, compliant, and high-throughput release cycles. Details Job Title: QA Engineer Department: Quality Assurance / Engineering Employment Type: Full-time Experience Required: 3 - 4 Years Domain: Fintech | Card Issuing | Payments | CMS Reporting To: QA Lead / QA Manager Work Mode: On-site (as per company policy) About the Role We are looking for an experienced Quality Assurance Engineer to join our Payments Engineering team supporting the Card Issuing platform. The ideal candidate will bring strong hands-on testing expertise across Card Management Systems (CMS), ISO 8583 transaction flows, network authorizations (Mastercard / Visa / RuPay), and UPI rails. You will own end-to-end quality for critical payment journeys combining manual rigor, robust automation, and performance validation to ensure secure, compliant, and high-throughput release cycles. Key Responsibilities Own end-to-end QA for Card Issuing modules across Prepaid, Credit, and Debit card products. Design, document, and execute detailed test plans, test scenarios, and test cases for functional, regression, integration, system, and UAT testing. Validate ISO 8583 message flows (0100/0110, 0200/0210, 0400/0410, 0420/0430, 0800/0810) across authorization, reversal, chargeback, and clearing/settlement cycles. Perform network authorization testing with Mastercard, Visa, RuPay, and other card schemes including simulator-based certification testing (MAS/MDS, VTS, RuPay simulators). Test UPI payment journeys -- collect requests, intent flows, mandates, refunds, dispute handling, and switch interactions. Design and maintain automation suites using Selenium, Playwright, REST Assured, or equivalent frameworks. Develop and maintain API test suites (Postman, REST Assured) covering issuance, KYC, card lifecycle, transaction, and reconciliation APIs. Conduct performance and load testing using JMeter to validate TPS, latency, and stability of payment authorization flows. Drive defect lifecycle management -- log, triage, prioritize, retest, and close defects in JIRA with clear reproduction evidence. Collaborate with developers, product managers, business analysts, network certification teams, and operations to ensure release readiness. Participate in production release validation, smoke testing, and post-release monitoring of payment flows. Contribute to QA strategy, test data management, environment readiness, shift-left practices, and continuous test improvement. Ensure compliance with PCI-DSS, network scheme mandates, and internal information security standards. Mandatory Skills Experience Domain Payments / Issuing Issuing experience: Hands-on prior experience in Fintech Payments on the Issuing side is mandatory. ISO 8583: Strong working knowledge of ISO 8583 standard -- message types, data elements (DE), bitmaps, MTIs, response codes, and field-level debugging. CMS: Experience testing Card Management Systems and card lifecycle events -- issuance, activation, hotlisting, replacement, PIN management, limits, and blocks. Card Products: Proven exposure to Prepaid, Credit, and Debit card products including BIN setup, fee plans, and cardholder lifecycle. Network Authorizations: Solid understanding of authorization flows from Mastercard, Visa, RuPay (and other schemes), including stand-in, advice, and reversal scenarios. UPI: Hands-on experience Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.