We build financial products where every balance can be explained and every money movement can be traced. From double-entry ledgers and payment orchestration to lending workflows, reconciliation, and compliance tooling, we design the controls into the transaction path instead of adding them after launch.
Financial software is not a collection of payment API calls. Money can be authorized, captured, reversed, disputed, settled, held, or returned on different clocks, while customers and operations still expect one answer to a simple question: where is it now?
We design the ledger and control model before the screens. Every external event is idempotent, every balance comes from balanced entries, and every provider total reconciles to an internal position that an operator can investigate without asking an engineer.
Double-entry
Every value movement has an equal source and destination
Idempotent
Retries never create a second payment or payout
Daily
Provider, bank, and ledger positions reconcile automatically
Traceable
Every balance links back to events and approvals
Six connected areas that cover the path from a customer's instruction to settled, reconciled, and reportable money.
Every movement creates equal debits and credits, so a balance always has a reproducible explanation.
Ledger and provider events match automatically; anything unexplained becomes an owned operational case.
Limits and monitoring decide whether to approve, hold, or escalate before value leaves the system.
Double-entry systems that separate pending, available, and settled positions while preserving an immutable explanation for every balance.
Orchestration across cards, bank rails, wallets, and local methods, with retries, routing, fees, refunds, and disputes treated as first-class states.
Issuing, funding, spend controls, and transaction lifecycle tooling connected to a ledger your team controls and can explain.
Origination through payoff: applications, decisioning, schedules, accruals, disbursement, collections, and the exception queues operators need.
Identity, business verification, transaction monitoring, and case management designed as one evidence trail instead of disconnected vendor dashboards.
Automated matching across ledger, processor, and bank positions, with breaks routed to owners and finance-ready evidence retained.
A first regulated workflow typically reaches production in ten to sixteen weeks, depending on provider onboarding and compliance review.
2 weeks
We trace value, data, ownership, approvals, and external parties across happy paths and reversals, then define the financial source of truth.
3–4 weeks
One movement runs end to end through API, provider sandbox, immutable event history, ledger postings, and an operator-visible status.
4–6 weeks
Limits, identity checks, approval paths, reconciliation, and exception queues make the workflow operable beyond a controlled demo.
2–4 weeks
Provider certification, failure drills, access review, and staged limits precede launch, followed by daily control and reconciliation checks.
Balances derived from immutable, balanced entries rather than mutable totals
Retries, reversals, and provider failures that cannot duplicate money movement
Automated reconciliation with every break assigned and explainable
Controls and evidence that support compliance review without slowing every release
The tools we reach for on Fintech work, picked for the problem in front of us and for the team who inherits the code.
Correctness under concurrency, first and last
Rails, reconciliation and the awkward edge cases
Long-running processes that must not lose a step
Evidence for auditors, generated not assembled
Usually yes once your product holds balances, splits funds, charges fees, uses more than one provider, or needs a durable customer position independent of a vendor. Provider reports describe what happened inside that provider; they do not model your full obligations. Your ledger becomes the product's financial source of truth, while reconciliation proves it agrees with each external rail.