Industry

Custom Software for Fintech

Fintech products live under double pressure: users expect instant, flawless experiences, while regulators expect auditable, secure and compliant systems. Building both at the same time is exactly the kind of challenge we take on.

We help financial teams replace manual back-office processes, launch new payment or lending products, and integrate with banks and providers — without rebuilding everything from scratch.

Challenges we solve

Compliance that slows you down

Regulatory requirements eat development velocity when they are handled as an afterthought instead of being built into the architecture.

Fragmented payment flows

Multiple providers, manual reconciliation and spreadsheets glued together — a constant source of errors and lost revenue.

Legacy core that blocks growth

Old systems that can barely keep up with daily operations, let alone support new products or partner integrations.

How we help

  • PCI-DSS and GDPR compliant architecture
  • Secure payment processing and wallet integrations
  • Real-time transaction monitoring and reporting
  • API-first design for third-party integrations

What we build

  • Payment processing platforms and digital wallets
  • Lending and scoring systems with automated decisioning
  • Regulatory reporting and audit trail tools
  • Customer onboarding with KYC/AML flows

Why ESTET

EU-based, GDPR compliant

Team in Poland, European Union. Contracts and invoices in EUR, development practices aligned with GDPR.

Transparent process

Clear estimates, regular demos and honest timelines. You always know what we are working on and why.

Build to scale

Architecture designed for your growth — from the first users to the loads of a mature business.

Let's talk

Ready to build software that actually works for your business?

Let's discuss your project. No commitment required.