Ledger-grade accuracy
Double-entry patterns, reconciliation jobs, and idempotent payment flows.
- Reconciliation
- Idempotency
- Audit logs
- FX rules
Regulated products need ledger accuracy, partner integrations, and evidence packs. Not slide-deck promises.
$2B+
Payment volume processed on our stacks
14
Licence jurisdictions we have navigated
99.95%
Target uptime on authorisation paths
Project process
Step01
Licence boundaries, data residency, and reporting obligations mapped before a single feature is specced. Product ambition stays inside what compliance will approve.

Step02
Sequence diagrams for authorise, capture, refund, and payout. Idempotency keys and ledger postings agreed with your finance team before sprint one.

Step03
Core banking, card processors, and KYC vendors integrated behind clean facades. Sandbox parity means QA tests real decline codes, not happy-path-only stubs.

Money in motion
A polished payment UI is the easy part. We engineer the ledgers, webhooks, and controls underneath so finance, risk, and regulators can follow the money without a forensic sprint.
How we build for finance
Financial products need correctness, traceability, and partner integrations that survive scrutiny.
Double-entry patterns, reconciliation jobs, and idempotent payment flows.
KYC/AML hooks, data residency, and reporting your compliance team can use.
Banking APIs, card processors, and webhooks with retry and monitoring.
Incident playbooks, fraud monitoring, and DR for money-moving systems.
Solution areas
Each vertical answers to different regulators with different reconciliation rhythms. We staff engineers who know the domain, not generalists learning PCI on your budget.
Vertical depth
Beyond feature checklists in a pitch deck, these are the outcomes that matter to ops, compliance, and your bottom line.
Fintech delivery
$2B+
Payment volume processed on our stacks
14
Licence jurisdictions we have navigated
99.95%
Target uptime on authorisation paths
Regulated delivery
We have launched products under PCI, open banking, and insurer vendor reviews. We know when to escalate to your compliance counsel and when to solve it ourselves.
01
Internal ledger models mirror how finance actually thinks. Reports reconcile without one-off SQL queries every month end.
02
Retry policies, dead-letter queues, and replay tools built before go-live. Not improvised when a processor changes its signatures.
03
Maker-checker flows for refunds, limits, and config changes. SOX-minded controls that do not paralyse daily operations.
04
Runbooks for processor outages, fraud spikes, and key rotation. Practised with your ops team, not PDFs on a forgotten shared drive.
Technology stack
Languages, frameworks, and data platforms chosen for regulatory-grade security, transaction integrity, and production reliability at scale.
Robust backend programming language powering banking systems, trading platforms, and financial applications with scalability, security, and enterprise-grade reliability.
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FAQ
We integrate via documented APIs and file feeds, wrapping legacy quirks in facades so product code stays clean instead of filling up with vendor-specific workarounds.
FX sources, rounding rules, and settlement windows are explicit in ledger design. Penny drift is caught in automated tests, not in the CFO's month-end spreadsheet.
Yes. Boundaries between your app and sponsor responsibilities are reflected in data flows and audit logs from the architecture phase onward.
Amortisation schedules, credit decision hooks, and collections states are modelled with compliance input. Nothing copied from a generic loan template.
We deliver architecture diagrams, data flow maps, and SDLC evidence packs. We have been through enterprise procurement and bank vendor assessments multiple times.
Get in touch
Tell us about your licence context, payment rails, and integrations. We will outline architecture options, regulatory touchpoints, and a delivery sequence that reduces go-live risk.