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How DATEV Used Confluent to Unlock Its Mainframe Data to Build Cloud-Native Applications

“With Confluent, we get a partner who not only understands the tech, but also understands our business and specific needs. They help us create solutions our developers need… and we can learn from Confluent’s experience with other use cases they’ve seen before.”

Martin Dengler | Lead DevOps Engineer at DATEV eG


DATEV needed a technical platform to implement microservices communication as part of a wider push to make their software product portfolio “cloud-native.”


DATEV eG used Confluent to integrate mainframe data into a new event-driven microservices architecture, helping make the jump to cloud-native software development.


  • Mainframe data unlocked for cloud-native applications
  • Mainframe processing and networking costs significantly reduced
  • Fully automated deployment pipeline for developers
DATEV Hero 2

More than two million German businesses use DATEV software to perform financial accounting, resulting in 11 million payslips processed monthly and over 2 million business assessments.

What started as a cooperative business for the tax advisory profession in 1966 has developed into a successful package of datacenter operations, software development, and consulting services for around 8,100 tax advisory chambers.

DATEV eG sees itself as a “forerunner of digitalization” for the tax advisory profession, and wants to help bring digital transformation fully into tax chambers. To make this possible for customers, DATEV has been making a long-term switch of its breadth of product and consulting services to a cloud-native environment.

This requires a powerful technical component within the overarching architecture of the business to allow them to deal with the multitude of microservice communications in a robust and scalable way.

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