Fintech QA has a different bar
In fintech, a bug is a financial event — sometimes a regulatory one. Test data has to be realistic without touching real customers. Test runs have to reconcile to the cent. Test artifacts have to hold up to a SOC 2 or PCI audit. Bytenexa builds fintech QA around those non-negotiables.
What we test
Payment Rails
Card networks, ACH, wire, RTP, SEPA. Auth, capture, refund, chargeback flows end-to-end.
Ledger & Reconciliation
Double-entry integrity, journal entries, batch settlement matching. Zero-drift assertions.
KYC / KYB / AML
Onboarding flows, ID verification, sanctions screening, PEP checks.
Trading & Brokerage
Order lifecycle, market data, FIX protocol integration, best-execution reporting.
Lending Systems
Underwriting decisions, disbursement, servicing, collections, loan-tape reconciliation.
Fraud & Risk
Rules-engine correctness, false-positive rates, adversarial simulation.
Frameworks & approaches we lean on
- Property-based testing for ledger and rounding logic — every edge case, not just the ones you thought of
- Contract testing (Pact) between microservices for reliable settlement flows
- Synthetic PII generation that's realistic but never real
- Idempotency verification — replay every mutation, confirm no double-charge
- Audit-trail assertions — every state transition logged, traceable, immutable
Compliance we design around
- PCI DSS — cardholder data isolation, test evidence for scope
- SOC 2 — control-mapped test artifacts
- SOX — change-management and audit-trail testing for public fintechs
- PSD2 / Open Banking — SCA flow verification, consent-lifecycle
- GDPR + state privacy laws for customer data
How we work with fintech teams
Typical shape: heavy API testing layer (fintech is mostly APIs), QA automation for the customer-facing web + mobile flows, and performance testing before Black Friday, tax deadlines, or funding-round announcements.