Industry-Specific Services

FINTECH

With our software solutions, your projects are in safe hands

Your Digital Payment Infrastructure

We develop secure FinTech software for processing sensitive data—from billing systems to integrations with leading payment providers—customized to meet your specific needs and regulatory requirements.

Our Client List in the Fintech Sector

.Learn more about our fintech services.

Xpay Mobile App

Software Development and UXD for Credit Card and Banking Platforms

Highly innovative and user-friendly solutions for credit cards and banking …

SENEC Online Store Interface

Billing Engine: Digital Billing System

Our billing engine for SENEC: a custom-built billing system for complex energy contracts. …

Our Features for Your Payment Infrastructure

Our fintech solutions offer companies the ability to implement features tailored precisely to their specific needs. Instead of adapting processes to an existing system, the software is tailored to the actual workflow.

Among other things, this makes it possible to:

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Automated Billing​
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Integration with Payment Providers​
Real-Time Transaction Monitoring
Recurring Billing
Flexible Rate Plans
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Automated Reminders
Encrypted Data Processing
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Scalable Billing Platforms

Current Topics

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Experiences

For several years now, we have been developing cutting-edge and secure FinTech applications for processing sensitive data for well-known companies. We have experience in developing billing systems and platforms, as well as integrating with major payment and billing service providers (Adyen, BillingPlatform, billwerk, Braintree (PayPal), Payone, and Zuora). In addition, we ensure compliance with regulatory requirements and offer you comprehensive front-end and back-end solutions—user-centric and intuitive. We migrate your projects to the cloud and also handle project management—working according to effective strategies such as DevOps. In addition, we support you in product management, marketing, sales, and support.

A Look at Our Projects

Integrated Billing System

Market-leading applications—across all industries. Whether it’s carsharing, industrial software, billing, or e-charging, we offer customized software solutions for all customer needs—forward-thinking and sustainable.

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More Information

02

Technologies

When implementing your projects, we make sure to use state-of-the-art software technologies. Our industry-specific expertise and experience in the FinTech sector guarantee you the best possible solutions, tailored to your individual needs. We work with Microsoft Azure, specifically Azure Functions (serverless computing), Azure Event Hub (message broker), and Azure Resource Manager (infrastructure as code), and rely on databases such as PostgreSQL and search engines such as Elasticsearch. To ensure optimal implementation, we use Docker for the local test setup.

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Integrated Billing Systems

Fully integrated billing systems—simple and easy to use. With our applications, you can easily combine different cost categories and services into a single invoice.

Frequently Asked Questions

What is custom FinTech software?

FinTech software is a custom-developed solution for financial processes such as accounting systems, payment processing, or the handling of sensitive financial data—tailored to the specific needs of each company.

The costs depend on the scope of functionality, complexity, and the systems to be integrated. Since every project is different, we will provide a customized quote following a no-obligation initial consultation.

Depending on the scope, this can range from a few months for focused solutions to a year or longer for complex, fully integrated platforms.

We integrate with popular payment and billing providers, such as Adyen, Braintree (PayPal), Payone, billwerk, BillingPlatform, and Zuora, as well as other systems via custom interfaces.

We rely on encrypted data processing and develop our systems in accordance with applicable regulatory and data protection requirements to reliably protect sensitive financial data.

Yes, we develop both new billing platforms and enhancements and interfaces for existing systems without interrupting ongoing processes.

These include Microsoft Azure (Azure Functions, Azure Event Hub, Azure Resource Manager), PostgreSQL, and Elasticsearch, as well as Docker for local testing environments.

In addition to front-end and back-end development, we also provide project management based on DevOps principles, as well as support in product management, marketing, sales, and customer support, upon request.

Get Started on Your Project

Contact Us
Sebastian Wetzel, Head of Sales and Marketing
Contact Person

Sebastian Wetzel

Head of Sales · ITSonix
We understand that every project is unique. Sebastian Wetzel looks forward to speaking with you to find customized solutions.
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