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Mira Kowal

Senior QA engineer, lending, BNPL and wealthtech

Pen name. The company does not publish engineers' real names.

Tests interest accrual, instalment schedules, fee logic, and portfolio calculations. Writes about segment trends and where their money flows break.

  • Industry

    Embedded finance trends in 2026: four dated signals and what each changes in testing

    Four embedded finance trends in 2026 change test scope: non-bank brands setting up their own FDIC-insured banks, sponsor banks answering for their fintech partners' anti-money laundering (AML) systems, a proposed rewrite of bank AML program rules, and GENIUS Act stablecoin and tokenized deposit rulemaking. Each trend moves testing toward per-transaction evidence a partner bank can review.

  • Industry

    Fintech trends 2026: four payment data points that change what QA tests

    Four fintech trends in 2026 change payment test scope. FedNow payment count rose 83% in the second quarter while value rose 1%. Instant transfers reached 25% of euro area credit transfers. Brazil's person-to-business Pix payments overtook person-to-person payments. Canada's Real-Time Rail rules took effect on 24 August 2026. Each trend adds limit, timeout, merchant, or irrevocability tests.

  • Industry

    Real time payments vs ACH in 2026: RTP, FedNow and Same Day ACH compared for testing

    Real-time payments on The Clearing House RTP network and the Federal Reserve's FedNow Service settle each credit instantly, 24x7, with final settlement and no return right. ACH (Automated Clearing House) settles in batches on banking days and allows debits and returns. Testing moves from return handling to pre-send fraud checks, request for payment, and weekend ledger posting.

  • Industry

    Stablecoin payments in September 2026: GENIUS Act proposals, MiCA, and what to test

    US stablecoin payments come under the GENIUS Act on 18 January 2027, since no final implementing rule appeared by 22 September 2026; the EU Markets in Crypto-Assets Regulation (MiCA) already applies. Test scope covers redemption at par and its timing, reserve reconciliation, travel rule data, on-chain sanctions blocking, and foreign exchange (FX) settlement at on- and off-ramps.

  • Practice

    A risk based testing approach for fintech: the scoring matrix we use

    Our risk based testing approach for fintech scores each test item by impact per failure (money moved, regulatory exposure, customer harm) and by likelihood (change frequency, integration count), and multiplies the two scores into a risk level that sets test depth. In our practice, a top-level money or regulatory item never drops below the second of four depth tiers.

  • Practice

    Test strategy vs test plan for a fintech product: definitions and the template we use

    A test strategy sets the rules every release follows: how risk is rated, which environments and test data are allowed, and how evidence is kept for audits. A test plan applies the strategy to one release: flows in scope, selected tests, schedule, owners, and exit criteria. Separate documents give auditors one rule set for every release.

  • Industry

    Agentic Commerce Protocol 2026-04-17: what merchant and PSP integrations now have to test

    The Agentic Commerce Protocol (ACP), an open specification maintained by OpenAI and Stripe, reached version 2026-04-17 with a mandatory Idempotency-Key on every POST, eleven checkout session statuses, and signed order webhooks. A merchant or payment service provider (PSP) integration now needs tests for delegated token allowances, state transitions, replay behaviour, and webhook signature windows.

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