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A top-tier European retail bank
Part of a major European banking group

Orchestrating multi-system onboarding into a single digital customer journey.

A top-tier European retail bank inside a major banking group needed a fully digital path for customers to open accounts and contract products online. We designed and built the orchestration back-end that coordinates KYC, AML, scoring, identification, signing, and core banking end to end.

End-to-end
Digital account opening
Multi-system
KYC · AML · Core banking · eID · eSignature
Real-time
Orchestration across internal + external services
The challenge

Connecting siloed systems that were never designed to talk in real time.

The bank wanted customers to open accounts fully online, without a branch visit. The reality: KYC, AML, credit scoring, and core banking each lived in its own silo, with its own interfaces and release cycle.

One layer had to orchestrate a live customer through identification, verification, screening, scoring, signing, and account creation — while satisfying KYC/AML, GDPR, and every audit control a regulated bank runs.

And the platform had to absorb new products and new regulatory rules without a full re-engineering cycle each time.

Our role

Owning the orchestration back-end between customer channels and every participating system.

We led the architecture of a central orchestration engine: modelling each journey as a state machine, routing every step through the right service, and producing the audit trail the compliance function needed.

Senior engineers worked directly with the bank's digital channels group, core banking team, and risk and compliance functions — with decisions documented and signed off before anything touched production.

The approach

How the engagement was delivered.

Central orchestration engine built around a regulated customer journey

  • Modelled every onboarding step — identification, verification, KYC/AML screening, scoring, contracting, signing, provisioning — as auditable states with explicit transitions and failure paths.
  • Configurable business rules so new products and new journeys ship through configuration, not code changes.
  • Audit and compliance controls baked in, so the orchestrator produces a compliance-ready record by default.

Integration across internal and external banking services

  • Connected to core banking for account creation and contracting.
  • Integrated KYC, AML, and sanctions-screening providers as inline steps, not manual follow-ups.
  • Integrated national eID and qualified eSignature providers so identification and contracting stay online.
  • Real-time cross-service communication with explicit timeouts, retries, and compensating transactions.

Scalability, resilience, and operational observability

  • Architected for high availability with isolation between channels and graceful degradation.
  • Explicit fallback and rollback logic so a failed step never leaves a customer or the bank's record ambiguous.
  • Instrumented end to end so the operations team sees throughput, bottlenecks, and failures in real time.
The results

A central orchestration layer that replaced a multi-system, branch-dependent process with a single digital journey.

The bank runs one production orchestration system that drives the full digital onboarding journey, end to end. Channel-specific workarounds are gone — every digital product plugs into the same configurable flow.

Onboarding is materially faster because steps that used to wait on manual reconciliation now run inline. The bank can launch new journeys through business-rule configuration instead of an engineering release cycle, and has a single place to monitor, audit, and govern digital onboarding across products.

Why it matters

Digital onboarding is the competitive differentiator in modern retail banking — and only an orchestration layer makes it sustainable.

Every European retail bank is racing to ship the same thing: a compliant, fast, fully digital path from first visit to funded account. The banks that keep shipping new journeys are the ones with an orchestration layer underneath; the rest keep rebuilding.

The bank now has the foundation to expand digital channels and absorb regulatory change on the same controllable, auditable platform — not as a fresh integration project each time.

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