Senior POS Certification & Payments Testing Engineer (L3 / Girocard Specialist)

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    "title": "Senior POS Certification & Payments Testing Engineer (L3 / Girocard Specialist)",
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    "description": "<h2>Overview</h2>\n<p>We are seeking an experienced <strong>Senior POS Certification & Payments Testing Engineer</strong> with strong expertise in POS transaction testing, L3 certification, and Girocard certification. The ideal candidate will have deep domain knowledge in Cards & Payments, hands-on POS terminal testing experience, and proven experience in full certification workflows across multiple schemes.</p>\n<h2>Responsibilities</h2>\n<h4><strong>POS Transaction Testing</strong></h4>\n<ul>\n <li><p>Perform end-to-end testing of POS payment application flows including:</p>\n  <ul>\n   <li><p>Contactless Sale</p></li>\n   <li><p>Contact Sale</p></li>\n   <li><p>Sale with DCC</p></li>\n   <li><p>Sale with Tip</p></li>\n   <li><p>MOTO Sale</p></li>\n   <li><p>Cash Back</p></li>\n   <li><p>Void/Cancel (Last / From Transaction List / With Card)</p></li>\n   <li><p>Linked & Unlinked (Naked) Refunds</p></li>\n   <li><p>Partial Refund</p></li>\n   <li><p>Pre-Authorization / Update / Completion</p></li>\n  </ul></li>\n <li><p>Validate chip, magnetic stripe, contactless (NFC), and fallback transaction flows.</p></li>\n <li><p>Verify EMV processing, PIN entry, CVV validation, timeout scenarios, and reversal handling.</p></li>\n <li><p>Conduct ISO 8583 message validation for authorization, reversal, refund, and settlement via acquirer switch.</p></li>\n <li><p>Perform routing logic validation, BIN configuration testing, and alternate host fallback testing.</p></li>\n</ul>\n<h2>Essential skills</h2>\n<h4><strong>POS Transaction Testing</strong></h4>\n<ul>\n <li><p>Perform end-to-end testing of POS payment application flows including:</p>\n  <ul>\n   <li><p>Contactless Sale</p></li>\n   <li><p>Contact Sale</p></li>\n   <li><p>Sale with DCC</p></li>\n   <li><p>Sale with Tip</p></li>\n   <li><p>MOTO Sale</p></li>\n   <li><p>Cash Back</p></li>\n   <li><p>Void/Cancel (Last / From Transaction List / With Card)</p></li>\n   <li><p>Linked & Unlinked (Naked) Refunds</p></li>\n   <li><p>Partial Refund</p></li>\n   <li><p>Pre-Authorization / Update / Completion</p></li>\n  </ul></li>\n <li><p>Validate chip, magnetic stripe, contactless (NFC), and fallback transaction flows.</p></li>\n <li><p>Verify EMV processing, PIN entry, CVV validation, timeout scenarios, and reversal handling.</p></li>\n <li><p>Conduct ISO 8583 message validation for authorization, reversal, refund, and settlement via acquirer switch.</p></li>\n <li><p>Perform routing logic validation, BIN configuration testing, and alternate host fallback testing.</p></li>\n</ul>\n<h2>Desired skills</h2>\n<ul>\n <li><p>5+ years of experience in Cards & Payments domain with strong POS focus.</p></li>\n <li><p>Extensive experience in ISO 8583 message validation.</p></li>\n <li><p>Proven experience in full certification workflows (L1 / L2 / L3).</p></li>\n <li><p>Strong knowledge of EMV, NFC, fallback, and PIN-based transactions.</p></li>\n <li><p>Experience in acquiring host and scheme certifications.</p></li>\n <li><p>Strong debugging and log analysis skills.</p></li>\n <li><p>Hands-on experience with POS boarding and configuration processes.</p></li>\n <li><p>Experience coordinating with schemes and acquirer host teams.</p></li>\n</ul>",
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