Fintech engineering · Architecture · Delivery
We build financial software: from the ledger core to the app.
We design and ship payment and accounting systems that balance to the cent: ledgers, integrations, interfaces, analytics.
- Payment services
- Fintech startups
- Marketplaces and SaaS with billing
- Companies with internal accounting
- Teams that need a ledger core
01 / What we build
Financial services, whole or in parts.
A single module or the whole product: from the data model to the interface.
- 01
Financial applications
Web, PWA and mobile apps: wallets, customer portals, accounting, admin panels. Fast, with live updates, comfortable on a phone.
- Web and PWA, iOS and Android
- Customer portals and wallets
- Back office: roles, permissions, activity log
- Live updates, offline, push
- 02
Payments and integrations
Payment acceptance, billing and subscriptions, integrations with banks, acquirers and payment providers. Idempotency, retries, reconciliation.
- Acquiring, instant payments, bank APIs
- Billing, subscriptions, fees and limits without a release
- Webhooks, retries, idempotency
- Reconciliation with providers
- 03
Accounting, analytics, reporting
Dashboards, reports for any period, balance reconciliation and exports in the formats accountants accept.
- Multi-currency accounting
- Reports for any period
- Balance reconciliation and adjustments
- Exports to 1C and Excel
- 04
AI automation
Document parsing, transaction categorisation, assistants on top of financial data. The model recommends, a human decides.
- Document recognition and parsing
- Transaction categorisation
- Assistant over financial data
- A human confirms the decision
Double-entry ledger
Every operation is posted atomically, balances are rebuilt from history, every change leaves a trace. The core everything else stands on: wallets, billing, reconciliation.
02 / How we work
Start with one problem. Expand once the result is visible.
- 01
Discovery
We learn the process, the data and the constraints, and pin down what exactly has to balance.
- 02
Architecture
Data model, system boundaries, controls and audit. Decisions are written down, not kept in someone’s head.
- 03
Build and launch
In iterations, with a working version at every step. Tests, migrations, deployment to your infrastructure.
- 04
Support
Monitoring, updates, further development. We stay around after launch.
03 / Principles
Boring technology, predictable results.
Money without floating point
Amounts in Decimal, arithmetic in the database. No lost cents.
Every operation audited
Who changed what and when is always visible. History cannot be rewritten quietly.
Your infrastructure
Code and data stay with you: your servers, your keys, no hidden dependencies.
Proven stack
TypeScript, NestJS, React, PostgreSQL. Tools that will still hold up in three years.
Contact
Describe the task. We reply within a day.
A payment flow, accounting, an integration or a new service. Tell us where you want to start.