Expanding a business banking platform for international growth

We partnered with a fintech company to advance its mobile banking experience and simplify core financial journeys for growing companies.

Fintech|🇳🇱Netherlands
Get in touch
Illustration of a woman with mobile showing investment charts

Client

A business banking platform built for entrepreneurs and growing companies. It brings together accounts, payments, cards, invoicing, accounting and expense management into one product, helping companies simplify financial operations while supporting growth across European markets.

Challenge

Expanding into new markets required technology that could scale with the business.

  1. Scaling the platform

    The product was growing quickly. The technical foundation needed to support more customers while enabling faster releases and continued product growth.

  2. Financial clarity

    Business owners rely on the platform to understand the state of their finances at any moment. The information presented needed to support confident decisions.

  3. International growth

    Expansion into new European markets introduced additional product requirements while maintaining a consistent experience remained essential.

  4. Product simplicity

    As the product became more capable, customers still needed to understand what to do next. Financial tasks had to feel intuitive from the first interaction.

Solution

  1. 01

    Mobile platform scalability

    Built a stronger mobile foundation to support growing customer demand, faster releases and continued product expansion.

  2. 02

    Financial product experience

    Designed and refined core financial experiences that helped customers understand their finances and complete everyday tasks with confidence.

  3. 03

    European market adaptation

    Expanded product functionality for new European markets while keeping the mobile experience coherent and easy to maintain.

Result

Business value translated into measurable results.

  • 29%Business accounts opened
  • 3New European markets
  • 24%More monthly active users
  • 37%Payment volume growth

Technologies used

Core technologies selected to support the product architecture.

  • ReactReact
  • TypeScriptTypeScript
  • SwiftSwift
  • KotlinKotlin
  • .NET.NET
  • PythonPython
  • SQL ServerSQL Server
  • AzureAzure

Looking for the right technology partner?

Let's discuss your goals and define the next step.

Get in touch

Why Mountalis

Product Thinking First

We challenge assumptions early and help shape key decisions before engineering begins.

Senior Ownership

Senior engineers stay directly involved in product decisions, architecture and delivery.

Built for Regulated Markets

We design systems with security, auditability and compliance considered from the start.

Aligned Execution

We keep strategy, engineering and business priorities aligned across the lifecycle.

Validation Before Scale

We reduce unnecessary scope early so new initiatives reach validation with less operational overhead.

Discuss your next product initiative

We start by understanding your goals and technical direction. Complete the form or contact us at contact@mountalis.com. Our team will respond within one business day.

Companies we work with

RepublicNextGen HealthcareMoonfareTuneIn