Core Banking QA Specialists — Independent Testing for NZ Transformations

Core banking transformations are NZ’s most complex and highest-risk technology programmes. Resync is the specialist independent QA partner with genuine separation from the vendor and delivery team.


70+

NZ QA engineers

AoG

Marketplace approved

Zero

Vendor commissions

High-stakes

Programmes delivered


What Makes Core Banking QA Different?

Core banking transformations are not standard software projects. The testing challenges are unique: data migration at scale, parallel run comparisons, regulatory compliance verification, payments and settlement testing, vendor delivery oversight, and high-stakes cutover rehearsal. A single mapping error affects real customer accounts.

Up to 70% of banking transformation projects face delays or cost overruns — and inadequate testing is consistently identified as a primary cause. Resync brings deep experience in the specific testing challenges these programmes present, alongside something most partners cannot: genuine independence from the vendor and the delivery team.


Data Migration at Scale

Millions of customer records, account histories, and transaction data must migrate with zero loss and perfect reconciliation. A single mapping error affects real customer accounts.

Parallel Run Testing

The old system and the new system must produce identical outputs for the same inputs — across every product type, transaction category, and edge case in the product catalogue.

Regulatory Compliance

Reserve Bank requirements, AML/CFT obligations, and CCCFA compliance must be verified in the new system before go-live. Resync understands what regulators look for.

Payments and Settlement

SWIFT, Faster Payments, direct debit, and card processing must be verified end-to-end — including failure scenarios, error handling, and reconciliation.

Vendor Delivery Oversight

Core banking vendors have their own QA teams. Independent testing verifies their output without depending on it — providing evidence-based go/no-go without delivery bias.

Cutover Rehearsal

The final cutover window is typically 36–72 hours. Test rehearsal and rollback planning must be thorough enough that the team can execute under pressure, first time.


Why Independence Matters in Banking QA

In a core banking transformation, the vendor wants to progress. The delivery programme wants to hit its milestone. The internal QA team reports to the same programme management as the delivery team. None of these parties can give you a truly independent view of whether the system is safe to go live.

Resync answers only to quality. We have no vendor relationship to protect, no delivery milestone bonus at risk, and no tools to sell. Our assessment of readiness is the honest one.

All-of-Government Approved

Resync is an All-of-Government (AoG) Marketplace approved supplier — independently assessed for NZ government and regulated-industry engagements. This credential applies to our core banking work with government-owned or regulated financial institutions.

If you are planning a core banking transformation, platform migration, or banking system upgrade in New Zealand, we would welcome a confidential conversation about how independent QA can reduce your programme risk.


Your Banking Programme is Too Important to Leave Unverified

Talk to the team who have been inside NZ’s most critical banking transformations — and find out what true programme assurance looks like.