Fintech Software Development
Fintech Software:
Security, Compliance, and Scale
Senior team specialized in financial products. Compliance by design. We build software for fintech companies that need to meet financial regulations without sacrificing innovation speed. From payment platforms to electronic invoicing, we deliver secure, scalable, and auditable systems.
Fintech Development Services
Product engineering for financial companies that take technology seriously
Real-time payment processing systems with high availability. Integration with gateways (Stripe, Adyen), automatic reconciliation, dispute management, and regulatory reporting. Event-driven architecture to handle transaction spikes.
We implement PSD2, PCI DSS, KYC/AML, and GDPR from the architecture level. Immutable audit trails, end-to-end encryption, granular access management, and fraud monitoring. Compliance is not an add-on: it is part of the system design.
Invoicing platforms that comply with fiscal regulations. Automatic document generation, tax authority integration, and approval workflows. Direct experience with Billin and similar platforms processing thousands of fiscal documents.
Connection with banking APIs via open banking (PSD2), financial aggregators, credit scoring services, and identity verification. Resilient design with retries, circuit breakers, and fallbacks for the reliability the sector demands.
Frequently Asked Questions About Fintech Software Development
Do you have real experience with fintech products?
Yes. We have worked with companies like Billin on their electronic invoicing platform, which processes thousands of fiscal documents in compliance with Spanish regulations. We understand the specific challenges of the sector: regulatory compliance, financial data security, payment gateway integration, and real-time transaction processing.
How do you handle regulatory compliance in fintech?
We integrate regulatory requirements from the architecture design phase, not as a patch afterward. This includes PSD2, PCI DSS, KYC/AML, GDPR, and market-specific regulations. We implement complete audit trails, data encryption at rest and in transit, and monitoring systems that generate the reports required by regulators.
What tech stack do you recommend for a fintech?
There is no universal stack for fintech. It depends on the product type (payments, lending, investment, invoicing) and scale. What is essential: end-to-end encryption, databases with transactional consistency (PostgreSQL is common), event sourcing for audit trails, and an architecture that scales transaction processing without compromising latency.
Can you integrate our fintech platform with banks and payment gateways?
Yes. We have implemented integrations with banking APIs (open banking / PSD2), payment gateways (Stripe, Adyen), identity verification services (KYC), and credit scoring platforms. Each integration is designed with retries, fallbacks, and monitoring to guarantee the reliability that the financial sector demands.
How much does it cost to develop a fintech platform?
A fintech MVP typically starts from EUR 25,000-50,000, as security and compliance requirements add complexity from the start. More mature platforms with multiple integrations and real-time processing can range from EUR 60,000 to EUR 150,000. We offer a free audit where we evaluate your specific case and provide a detailed estimate.
Ready to Build Your Fintech Product?
Free 30-minute audit. We analyze your product, regulatory requirements, and architecture.