Custom Solution Architecture for Regulated Fintech

The flow of funds is the spine of any regulated payment or e-money business, and it is the first thing a regulator will examine. We map every leg of the money movement — pay-in, settlement, holding, conversion, and pay-out — and define who holds client funds at each point, on what legal basis, and through which account.

For e-money and payment institutions this means designing safeguarding correctly from the outset: segregated client-money accounts, safeguarding reconciliation, and a clear separation between client funds and the firm's own capital. For crypto and VASP models, it means clarity on custody, on- and off-ramp routing, and where fiat and digital assets touch. The result is a flow that is commercially efficient and consistent with the conduct and prudential rules of your target jurisdiction.

Behind every clean user experience sits a ledger that must be internally consistent, reconcilable, and auditable. We design the account and ledger model that records each movement — client balances, fee accruals, FX positions, settlement obligations, and safeguarding postings — so that the books reconcile to the penny and to the underlying bank and scheme records.

We specify whether you operate a single-currency or multi-currency ledger, how sub-accounts and virtual IBANs are represented, how double-entry integrity is enforced, and how the ledger supports the regulatory reporting and reconciliation you will be required to produce. This is the layer that makes audits routine rather than painful.

Few regulated fintechs build every rail themselves. The architecture typically stitches together a banking-as-a-service or sponsor-bank partner, card processors and scheme connections, payment gateways, FX and treasury providers, and a stack of KYC, AML screening, and transaction-monitoring vendors. The way these are integrated has direct regulatory weight — outsourcing and third-party risk are squarely within a supervisor's remit.

We design the integration topology: which functions are insourced versus outsourced, where the regulated boundary sits, how data and instructions pass between systems, and how you retain control and oversight of critical providers. We also help you select vendors that fit your jurisdiction, your volumes, and your licence perimeter, so the partnerships you sign support the application rather than complicate it.

Regulated financial firms are held to a high bar on information security, operational resilience, and data protection. We define the security posture that the rest of the architecture must satisfy: data classification and residency, encryption in transit and at rest, key management, access control and segregation of duties, logging and audit trails, and the resilience and continuity arrangements expected of a regulated entity.

Where card data is in scope, we account for PCI DSS obligations; where personal data is processed, we design for GDPR and equivalent regimes. The posture is documented in a way that maps cleanly onto the ICT, operational-resilience, and outsourcing expectations supervisors increasingly apply across the EU, UK, and beyond.

A clever architecture that cannot be explained to a supervisor is a liability. Everything we design is built to be defended — in a licence application, in a regulator's questions, and in subsequent audits and inspections.

That means the flow of funds, the safeguarding model, the outsourcing arrangements, and the control framework are not only sound but documented in the language and structure regulators expect. The architecture aligns to the specific licence you are pursuing — payment institution, e-money institution, VASP or crypto authorisation, or another permission — so that what you build and what you apply for are one and the same. This is where our regulatory and technical sides meet, and it is what separates an architecture that ships from one that also gets authorised.

Defensibility is necessary but not sufficient. The architecture also has to make commercial sense — to support your unit economics, your roadmap, and your growth across markets. We design with cost, latency, settlement speed, and provider economics in mind, avoiding over-engineering on one side and brittle shortcuts on the other.

We pressure-test the design against your business plan: the volumes you expect, the corridors and currencies you will serve, the products you intend to add, and the jurisdictions you may expand into. The goal is an architecture that is right for where you are today and extensible to where you intend to be, without a costly re-platform the moment you scale.