A Payment Is Not A Database Write
Networks time out mid-transaction. Callbacks arrive twice, or three days late. A user taps pay again because nothing happened. Handle those three cases carelessly and you have double debits, orphaned settlements and a support queue you cannot answer.
So we build the boring parts properly: idempotent operations, a double-entry ledger, and daily reconciliation against the bank and the processor. The app on top is the easy half, and it is the half everyone else starts with.
- Double-entry ledger as the source of truth, not a balance column
- Idempotency and retry handling on every money-moving call
- Reconciliation that surfaces a mismatch the same day it happens
What We Build In Fintech
The products behind our payments, KYC and banking platform work.
Digital Banking Apps
Account opening, balances, transfers, statements and cards — with the onboarding flow that decides whether a user ever funds the account.
Payment Gateways & PSP
Merchant onboarding, multi-acquirer routing, settlement and chargeback handling for gateways and payment service providers.
Lending & BNPL
Application, underwriting workflow, disbursement, repayment schedules and collections — including the parts nobody demos.
Investment & Wealth
Portfolio, order placement, holdings and reporting platforms wired to your broker, custodian and market data.
KYC & Onboarding
Identity, document and liveness verification with tiered limits and a manual review queue that keeps false rejects low.
Wallets & Card Issuing
Stored value, closed and open loop wallets, prepaid and virtual card issuing with the ledger to back them.
What Decides Whether It Holds
None of this shows in a demo. All of it shows in a month-end close.
Double-entry ledger
Every movement recorded as balanced entries, so a balance is derived and provable rather than edited.
Idempotency & retries
Duplicate requests, delayed callbacks and timeouts handled so a retry can never move money twice.
KYC, AML & screening
Onboarding tiers, sanctions and PEP screening and reporting wired to the rules your compliance team sets.
PCI DSS & data handling
Card data kept out of your systems by design, tokenised where it has to be stored, encrypted everywhere else.
Fraud & risk scoring
Velocity, device and behaviour rules you can tune, with a review queue instead of silent blanket blocks.
Reconciliation & reporting
Daily settlement matching against bank and processor files, with breaks raised as work rather than logged and lost.
Rails And Providers We Work With
A fintech product is mostly integration. The value is in the layer that makes these agree with each other and with your ledger, every single day.
Talk to our teamHow We Deliver
The accounting model is agreed before a screen is drawn, because it is the one thing you cannot refactor quietly.
Flows and obligations
Money flows, jurisdictions and compliance requirements mapped with your counsel in the room, not assumed.
Ledger and core
Ledger, accounts and the money-movement layer built and tested against failure cases first.
Product surfaces
App, dashboard and back office built on that core, with the operations tooling delivered alongside.
Certify, then launch
Provider certification, security review and a limited launch with caps that lift as the numbers reconcile.
Bring Us The Ledger Problem
Reconciliation that never balances, an onboarding funnel that leaks, a settlement flow nobody fully understands. Those are the conversations worth having first.
Talk to our teamFintech Questions
What founders and product teams ask us before starting.