Your payment infrastructure, finally under your control.
Stop relying on opaque SaaS solutions. PayEngineers provides you with autonomous payment processors, deployed at the heart of your infrastructure. Regain control of your flows, your data, and your growth.
Designed for performance and security, our engines integrate directly with your systems, offering unparalleled transparency and flexibility.
Our Solutions
Core Engines
Featured Engine
FlexaCore
FlexaCore is a complete payment processing kernel to help fintechs and banks create their own PSP, wallet, or neobank infrastructure. Built for compliance, reliability, and total control — with direct bank and network integrations.
Developer Dashboard
Volume (24h)
€0.00
Transactions (24h)
0
API Event Log
Mode : Production
Manage API keys →An ecosystem designed for performance and trust
We integrate with the technology leaders and e-commerce platforms you already use, ensuring maximum reliability, security, and scalability.
Featured Solutions
Explore our flagship platforms, ready to be customized for your specific needs.
FlexaCore
FlexaCore is a complete payment processing kernel to help fintechs and banks create their own PSP, wallet, or neobank infrastructure. Built for compliance, reliability, and total control — with direct bank and network integrations.
Ideal For
Starting at
$12,000
FlexaSwitch
FlexaSwitch is a modular payment routing engine designed for enterprises handling high-volume transactions. It enables dynamic switching between multiple acquiring banks and payment gateways based on rules, geography, currency, or cost — with zero reliance on third-party processors.
Ideal For
Starting at
$4,900
Our Engineering Capabilities
A tailored solution for every payment flow.
Each processor we build is a standalone, optimized solution designed to integrate seamlessly into your ecosystem. Here’s a glimpse of our specialties.
-
Card Payment Processor
- A comprehensive payment engine to accept card payments (Visa, Mastercard, etc.) directly, without intermediaries.
-
- PCI DSS Level 1 Compliance
- Secure Tokenization
- 3D Secure 2 Management
-
E-Wallet Processor
- Build your own PayPal-like payment ecosystem, with user balance management and internal transfers.
-
- User Account Management
- P2P (peer-to-peer) Transfers
- Escrow Functionality
-
Cryptocurrency Processor
- Securely accept cryptocurrency payments (BTC, ETH, etc.) and offer real-time conversion options.
-
- Multi-chain Support
- Fiat/Crypto Conversion
- Transaction Monitoring
-
Card-to-Bank Processor
- An engine that orchestrates card payments and direct fund transfers to a designated bank account (payouts).
-
- Direct Settlement to IBAN
- Automated Payouts
- Beneficiary Management
-
Card-to-Crypto Processor
- Build your own 'on-ramp' gateway to allow your users to purchase cryptocurrencies with their credit cards.
-
- Instant Liquidity
- KYC/AML Integration
- Live Rate Calculation
-
Your Custom Processor
- Have a unique requirement? A hybrid payment flow or complex business logic? We specialize in building fully customized solutions.
- Let's discuss your project →
Your Universal Transaction Core
Visualize the seamless flow of value. From any point of origin to any destination, unified through a singular, powerful core.
One powerful API, endless configurations.
Our cloud platform facilitates secure and efficient payments, helping companies overcome the limitations of traditional systems.
+10M
Out-of-the-box capacity to process over 10 million daily transactions without compromising performance or stability.
99.99%
Guaranteed uptime with architecture that operates simultaneously across multiple datacenters for maximum resilience.
100%
Fully configurable and accessible via API, including dashboards and interfaces ready to be integrated into your systems.
24/7
Continuous support from an expert team to ensure your operations run smoothly without critical interruptions.
Proof From Our Clients
Why technical leaders trust us.
We're more than a service provider; we become a dedicated engineering partner. Our focus is on providing robust, transparent, and scalable payment infrastructure that empowers development teams to innovate without limits. See what they have to say about our collaboration.