Software for fintech and payment companies — infrastructure that reconciles to the cent.
For fintech and payment companies we build the pieces that are unforgiving: gateway integrations, settlement and reconciliation, webhook infrastructure, merchant tooling, and the encryption around sensitive data.
- Rails
- Bank · card · UPI · crypto
- Chains
- BTC · ETH · TRX + on request
- Security
- ICEBERG end-to-end encryption available
- Stack
- .NET · Node.js · PostgreSQL
What breaks first in a payment product.
- 01
Ledger and bank statement disagree
Every missed webhook and duplicate capture ends up as a reconciliation item. We build explicit state machines, idempotent handlers and a daily reconciliation job that catches what the webhook missed.
- 02
Adding a new rail takes a quarter
Each gateway integrated differently. We put one internal payment API in front of every rail — bank, card, UPI, crypto — so the product integrates once.
- 03
Crypto acceptance is a third-party black box
Fees, custody and downtime you do not control. We build gateways that run in your infrastructure with your wallets.
- 04
Sensitive data spread across services
Identity numbers, account details and documents stored in the clear. We add field-level and file-level encryption with rotation and no downtime.
- 05
Compliance asks for evidence, not assurances
Audit logs, access records and PCI scope documentation. We design for the audit from the first sprint.
What we build for payment teams.
Gateway integration
Bank, card, UPI and processor integrations behind one API, with hosted fields or tokenisation to keep PCI scope small.
Learn moreCrypto payment gateway
BTC, ETH and TRX acceptance in your infrastructure: per-invoice addresses, confirmations, sweeping, fiat pricing.
Learn moreSettlement & reconciliation
Settlement files, batch payouts, refunds, and a reconciliation engine that explains every difference.
Learn moreMerchant dashboard
Invoices, transactions, settlements, exports and API keys for your merchants — web and mobile.
Learn moreEncryption & key management
ICEBERG for sensitive channels, field-level encryption at rest, rotation without downtime.
Learn moreWebhook & event infrastructure
Signed, retried, idempotent webhooks with replay protection and a delivery log your customers can inspect.
Learn morePayments and encryption in one team.
- The crypto gateway and the bank integrations are built by the same engineers, on one payment API
- ICEBERG, our end-to-end encryption protocol, is available inside the same build — no second vendor for data protection
- We deliver the state machine, the reconciliation job and the audit log as part of every integration, not as extras
- Source, documentation and PCI scope notes are handed over with the system
Relevant work
- Crypto payment gateway on BTC, ETH and TRX
- Bank and card gateway integrations, Indian and international
- ICEBERG — layered encryption protocol · Privyie authenticator
Typical stack
Asked by fintech and payment teams.
Do you take custody of funds?
No. Gateways run in your infrastructure with your wallets and bank accounts. We build and maintain the software.
Which bank and card gateways?
Indian bank and card gateways, UPI, and international processors. Named integrations are discussed on a call under NDA.
How do you keep PCI scope small?
Card data goes through hosted fields or the gateway's tokenisation and never touches your servers. We document the resulting scope with the delivery.
Can you add a chain we need?
Yes. BTC, ETH and TRX are live; other chains are added per project.
Can you integrate into an existing platform?
That is the usual case. We add the payment layer to what you already run rather than rebuilding it.
Where does encryption fit?
Sensitive fields at rest, documents in storage, and channels between services. ICEBERG covers what TLS does not: the message itself, through queues and storage.
Building or fixing a payment product?
Send us the flows and the rails. We will come back with an architecture and a price.