Maik Wietheger & Jan-Christoph Schlieker

Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?

To modernize an architecture for 50 million clients, this team focused on one surprising thing: developer happiness.

Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?
#1about 3 minutes

Understanding the scale of a large financial services platform

The software development landscape for the Sparkassen Finance Group covers 50 million clients and requires highly scalable and secure solutions.

#2about 3 minutes

Integrating new technologies while managing legacy systems

A core architectural challenge is integrating emerging technologies like AI while modernizing decades of legacy systems from mainframes to the PC era.

#3about 2 minutes

Designing a flexible and modular multi-channel architecture

The new architecture uses a multi-channel approach with standardized components, like Lego bricks, built on Spring Boot and Spring Cloud for flexibility.

#4about 2 minutes

Adopting an integration-focused, gradual migration strategy

A big bang migration is too risky, so the transformation is built into the architecture itself, prioritizing interoperability and backward compatibility.

#5about 2 minutes

Navigating organizational change with 1,700 developers

Driving architectural change across a large organization requires a gradual, project-by-project strategy and constant communication with development teams.

#6about 4 minutes

Fostering developer happiness through three core principles

Improving developer experience focuses on three key areas: maximizing productivity, building a strong community, and empowering developers to shape the future.

#7about 1 minute

Pitching the business value of developer experience

Gaining management support for developer experience initiatives requires framing the benefits as a win-win-win for developers, customers, and the company.

#8about 2 minutes

Implementing tools to enhance the developer workflow

A developer portal built on Backstage, along with hackathons and an inner source policy, provides practical ways to improve daily workflows and collaboration.

#9about 2 minutes

Three key takeaways for successful enterprise modernization

Successful modernization requires a gradual approach, using pilot projects as ambassadors for change, and engaging with developers early in the process.

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