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

Actively Reviewing

Expleo Group

Gurugram Full-Time 4–8 yrs exp Posted 3 months ago

Job Description

We are seeking an experienced Senior POS Certification & Payments Testing Engineer 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.

Responsibilities

POS Transaction Testing

Perform end-to-end testing of POS payment application flows including:

Contactless Sale
Contact Sale
Sale with DCC
Sale with Tip
MOTO Sale
Cash Back
Void/Cancel (Last / From Transaction List / With Card)
Linked & Unlinked (Naked) Refunds
Partial Refund
Pre-Authorization / Update / Completion

Validate chip, magnetic stripe, contactless (NFC), and fallback transaction flows.
Verify EMV processing, PIN entry, CVV validation, timeout scenarios, and reversal handling.
Conduct ISO 8583 message validation for authorization, reversal, refund, and settlement via acquirer switch.
Perform routing logic validation, BIN configuration testing, and alternate host fallback testing.

Qualifications

Strong hands-on experience in building and implementing automation frameworks.
Programming expertise in:

Java
Python
JavaScript
HTML

Experience with Playwright for automation.
Strong debugging skills (scripts, logs, transaction traces).
Proven experience in payment certification processes (L1, L2, L3).
Deep understanding of POS transaction flows and EMV standards.
Experience working with multiple card schemes and payment terminals.

Essential Skills

POS Transaction Testing

Perform end-to-end testing of POS payment application flows including:

Contactless Sale
Contact Sale
Sale with DCC
Sale with Tip
MOTO Sale
Cash Back
Void/Cancel (Last / From Transaction List / With Card)
Linked & Unlinked (Naked) Refunds
Partial Refund
Pre-Authorization / Update / Completion

Validate chip, magnetic stripe, contactless (NFC), and fallback transaction flows.
Verify EMV processing, PIN entry, CVV validation, timeout scenarios, and reversal handling.
Conduct ISO 8583 message validation for authorization, reversal, refund, and settlement via acquirer switch.
Perform routing logic validation, BIN configuration testing, and alternate host fallback testing.