A bug isn't just a bug
In fintech an edge case can mean a wrong balance or a duplicate charge - the cost of a mistake is direct and financial.
IndustriesFintech
Money that is never wrong, and every change explained
Money moving through your product changes the calculus on everything - data handling, uptime, and the traceability of every request. We build the ledger, the payment flows and the audit trail so a balance can always be traced back to the requests that made it.
- Double entry
- Every debit has its matching credit.
- Idempotency key
- A retry can't charge twice.
- Hash chain
- History can't be edited quietly.
Money rules we build in
Not features to add later. These go in with the first table and the first endpoint, because retrofitting them onto live money is the expensive way.
- Double-entry ledgerdebits = credits
- Every movement is written as a debit and a matching credit, so the books always balance and a missing rupee has nowhere to hide.
- Money as integerspaise, not floats
- Amounts are stored in the smallest unit as whole numbers, so rounding never quietly creates or loses money.
- Idempotent paymentsIdempotency-Key
- A retried request with the same key returns the first result instead of charging the customer twice.
- Reconciliation jobsledger ⇄ settlement
- Scheduled jobs match your ledger against processor and bank settlement files, and every difference goes to a person.
- Immutable audit logappend-only · hash-chained
- Records are never edited in place. A correction is a new entry, linked to the one before it, so history can't change quietly.
- Maker-checker approvalsfour eyes
- Refunds, limit changes and manual adjustments need a second person to approve them before they take effect.
- Encrypted personal datafield-level · access logged
- Account numbers and ID documents are encrypted field by field, and every read of them leaves a record.
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Why fintech is a different kind of build
The constraints are the industry's, not ours - every product that moves money lives with them.
Every request needs a paper trail
Auditors and regulators expect to be able to reconstruct what happened, when, and why.
Real-time is the default
Balances, limits, and fraud checks are expected to reflect the current state, not yesterday's batch job.
Where we come in
Each of these is its own service - brought together on the parts of your product that touch money.
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Security audited, not assumed
Independent review of the paths money and sensitive data actually travel through.
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APIs built for reconciliation
Integrations with payment processors and banking rails designed so every transaction is traceable.
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Pipelines that don't lag
Data infrastructure built for the current state, not an overnight batch.
Building something that moves money?
Tell us what your product does with money today - we come back with how we would shape the ledger, the payment flows and the audit trail around it.