Leading financial sector organization
Modernizing business-critical internal systems in financial services
Summary
We helped a leading financial services organization modernize their internal tooling by replacing legacy applications with user-friendly, scalable, maintainable solutions – improving the reliability and efficiency of business-critical operations.
#FinancialServices #Modernization #Fullstack #EnterpriseSystems #AI #InternalTools
Challenge
Our client, a leading financial services organization, operates in a highly regulated industry where applications must meet strict requirements for security, reliability, and fault tolerance.
They recognized the need to modernize legacy internal systems that no longer met modern standards for usability, maintainability, or scalability. These systems are critical for daily operations such as customer payment processing, but their legacy architecture limited development speed and adaptability.
Development at our client took place in a large, distributed organization, where multiple teams were responsible for different parts of the technology landscape – creating challenges in coordination and maintaining development speed.
Although not customer-facing, the internal tools must function flawlessly and provide clear, meaningful feedback in all situations.
Solution
Asteroid helped our client modernize internal applications by replacing legacy systems with modern, purpose-built solutions, delivered incrementally one feature at a time.
The work focused on developing intuitive and reliable tools for handling personal customer payment operations. Instead of maintaining complex applications that were difficult to use and evolve, the new solutions were designed to be clear, consistent, and fit for purpose – making everyday tasks easier for bank employees.
We created the new tools to integrate seamlessly with the client’s secure infrastructure and existing systems. On the frontend, we followed established design systems to ensure consistency, usability, and a consistent user experience across applications.
We built the solutions using Java and Spring Boot on the backend, with React and TypeScript on the frontend. Containerized environments with Docker and Kubernetes ensured scalability and reliability, while Kafka allowed for event-driven integrations. AI-assisted tools improved development efficiency.
Results
With our help, the client is steadily transitioning from legacy systems to modern, maintainable solutions that build a strong foundation for future development.
The new applications are stable and resilient and capable of handling complex scenarios without disrupting workflows. Clear, consistent, and accessible user interfaces make everyday tasks easier, reducing the risk of errors and improving the speed and quality of customer case processing.
Modern architectures and technologies improve developer productivity and reduce reliance on outdated systems, allowing faster iteration and more efficient development.
Overall, the renewal has resulted in a more scalable and maintainable internal tooling ecosystem that evolves with business needs – supporting reliable operations and continuous development.
Learn more about our collaboration
Explore new digital frontiers with Asteroid
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Mika Tuoma
CEO, Co-Founder
mika.tuoma@asteroid.fi
+358 45 673 3534 -
Eero Kurkela
CTO, Co-Founder
eero.kurkela@asteroid.fi
+358 40 169 8013 -
Sami Talpiainen
Chief Commercial Officer
sami.talpiainen@asteroid.fi
+358 40 550 3969