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Fintech Platforms and Payments

Designing secure payment gateways, digital wallets, and neobanking systems.

Fintech and blockchain: payment gateways and referral systems

Challenges we solve

Strict security requirements (PCI DSS).

Real-time transaction processing.

Complex integrations with core banking systems.

Key capabilities

  • Payment systems and P2P transfers
  • Cryptoprocessing and blockchain solutions
  • ML-based anti-fraud systems
  • Digital wallets and bonus programs

Technologies

Java
Golang
PostgreSQL
RabbitMQ
Solidity

Why NineLab?

PCI DSS-ready architecture and transaction security audit

Payments, P2P and crypto processing — Go/Java, PostgreSQL, RabbitMQ

ML anti-fraud and core banking integration

Your outcome

Secure

Multi-level protection for every transaction.

Global

Support for multi-currency and cross-border payments.

Trusted

Compliance with all financial standards.

Fraud cost

−2% GMV

Without anti-fraud and idempotency, payment flows lose up to 2% of volume to chargebacks and fraud. Proper architecture pays off in the first quarter.

Fintech in production

Payments, blockchain and high-throughput transactions

Ready to discuss your project?

First consultation is free — describe your task and we'll propose architecture and timeline estimates.

Our approach

Fintech is not just a payment UI — it is ledger, idempotency, reconciliation and anti-fraud. We design the flow so every transaction is traceable and load growth does not break accounting.

From pilot to production

01
Compliance and scope

PCI DSS, payment regulations, limits and acquirer/bank integrations.

02
Payment architecture

Idempotency, ledger, webhooks and load test plan.

03
Development and audit

MVP, payment perimeter pentest, transaction monitoring.

04
Production and scale

Regulatory reporting, anti-fraud, TPS growth.

FAQ

Yes. YooKassa, CloudPayments, instant payment systems and bank APIs — per your provider list.

We design for PCI DSS with cardholder data separation. Certification follows your schedule and processing volume.

Yes, where business justifies it: custody, on-ramp/off-ramp, smart contracts with security audit.

Depends on architecture. At workshop we set target TPS and verify with load tests before launch.

Yes. Security review, idempotency and regulatory compliance — with remediation roadmap.

Discuss your project

Describe your task — we respond within 2 business hours.

Free initial consultation

Timeline and architecture assessment

NDA on request

Or call: +7 (912) 232-74-87 · full contacts page