FinTech Software Development Services
Building financial technology means operating in a world where a single decimal point error or a moment of downtime can cost millions. We develop software for companies that move money, manage risk, and navigate complex regulatory environments — from payment processors and neobanks to crypto platforms and insurance tech.
Our FinTech engineering teams understand that financial software demands a fundamentally different approach. Every line of code must account for transaction integrity, regulatory compliance, security threats, and the expectations of users who trust you with their financial lives.
Book a CallWhy financial software is different
Regulatory compliance is eating your roadmap
PSD2, PCI DSS, SOX, AML/KYC, MiCA — every market you enter comes with a new alphabet soup of regulations. Your compliance team flags issues faster than your engineers can fix them, and every new feature requires a regulatory impact assessment.
Your transaction system can't handle what's coming
Your payment processing works today, but Black Friday volumes, international expansion, or a new product launch will break it. Idempotency, exactly-once processing, and distributed transactions aren't in your codebase because nobody on your team has built them before.
Security isn't a feature — it's existential
One breach and you lose your banking license, your customers, and your company. Your security posture was designed for a Series A startup, but you're handling real money now. The gap between where you are and where you need to be keeps widening.
Integration with legacy financial infrastructure
SWIFT, SEPA, ACH, card networks, core banking systems — the financial world runs on protocols designed before the internet. Every integration is a multi-month project that requires engineers who understand both modern APIs and legacy financial messaging.
FinTech solutions we build
Engineering for companies where money moves, risk is managed, and trust is everything.
Payment Processing Systems
High-throughput payment rails, multi-currency processing, payment orchestration layers, and reconciliation engines. Built for the volume, speed, and accuracy that financial transactions demand.
Banking & Neobank Platforms
Core banking modules, account management, transaction processing, and customer onboarding flows. Integrated with banking-as-a-service providers or built from the ground up.
Crypto & DeFi Infrastructure
Exchange platforms, wallet infrastructure, smart contract integration, and blockchain analytics. We build crypto products that bridge the gap between Web3 technology and traditional finance.
Risk & Compliance Engineering
AML/KYC automation, transaction monitoring, fraud detection systems, and regulatory reporting. Compliance infrastructure that scales with your business without slowing down your product.
Trading & Investment Platforms
Real-time market data processing, order management systems, portfolio analytics, and robo-advisory engines. Low-latency systems built for the demands of financial markets.
InsurTech & Lending Platforms
Underwriting engines, claims processing automation, credit scoring systems, and loan origination platforms. Automating complex financial decisions with accuracy and auditability.
Our FinTech stack
Backend
Databases
Messaging
Security
Payments
Infrastructure
How we deliver FinTech software
Regulatory & Technical Discovery
We map your regulatory landscape, integration requirements, and technical architecture. We identify compliance gaps, security risks, and scalability constraints before writing a line of code.
Secure Architecture Design
Threat modeling, data flow mapping, and compliance-first architecture. We design for PCI DSS, SOC 2, and your specific regulatory framework from the foundation up.
Incremental Delivery
We ship in small, auditable increments with comprehensive testing, security reviews, and compliance validation at every step. No "big bang" launches in financial software.
Production & Compliance
Monitoring, alerting, incident response, and continuous compliance validation. We help you maintain your security posture and regulatory compliance as you scale.
Why Pletava
Engineers who understand financial systems
Our team has built payment processors, trading platforms, and banking infrastructure. We understand double-entry bookkeeping, settlement cycles, and why you can't just "retry" a failed financial transaction.
Compliance as code, not paperwork
We implement compliance controls as automated tests, infrastructure policies, and monitoring rules. When auditors come, evidence is generated automatically — not assembled in a panic.
Zero-tolerance security culture
Every PR gets a security review. Every deployment includes vulnerability scanning. Every engineer understands the OWASP FinTech threat landscape. Security isn't a separate team — it's how we build.
Frequently Asked Questions
Can't find what you're looking for? Book a call and we'll answer everything.
Book a CallDo you have experience with PCI DSS compliance?
Yes. We've built PCI DSS Level 1 compliant systems, including payment processing environments with proper network segmentation, encryption, and audit logging. We help minimize your cardholder data environment to reduce compliance scope.
Can you integrate with banking APIs and card networks?
Yes. We have experience with Stripe, Adyen, Plaid, Open Banking APIs (PSD2), SWIFT, SEPA, ACH, and various card network integrations. We handle the complexity of legacy financial protocols.
How do you handle transaction consistency?
We implement idempotent operations, distributed transaction patterns (saga, outbox), event sourcing, and proper reconciliation mechanisms. Financial data integrity is a non-negotiable architectural requirement.
What about cryptocurrency and blockchain projects?
We have experience with wallet infrastructure, exchange platforms, smart contract integration (EVM-compatible), and blockchain analytics. We build crypto products with the same security and compliance rigor as traditional finance.
Do you work with regulated financial institutions?
Yes. We've worked with licensed payment institutions, e-money providers, and banks. We understand regulatory frameworks across EU (PSD2, MiCA), US (FinCEN, state MSB), and UK (FCA) jurisdictions.
Financial software that moves money safely and scales reliably.
Talk to FinTech engineers who've built for banks, exchanges, and payment processors.
Thrilled to meet you!
Let's talk possibilities