> Markdown version of [/@lars-reichert](https://www.wearedevelopers.com/@lars-reichert). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lars Reichert Transforming legacy mainframes into modern banking infrastructure at Finanz Informatik. ## About Lars Reichert tackles legacy modernization at Finanz Informatik. He transforms mission-critical mainframe applications for the German Sparkasse Finance Group, bringing modern banking infrastructure to over 50 million customers. His work focuses on the transition from monolithic systems and COBOL to cloud-native Java architecture. Rather than just keeping the lights on, Lars figures out where mainframes still make sense and where shared services work better. By automating routine tasks, he helps engineering teams spend less time maintaining the past and more time building the future. ## Past Sessions ### World Congress 2025 · July 9, 2025 Berlin, Germany - [ From Mainframe to Modular: The Developer’s Guide to Legacy Modernization](https://www.wearedevelopers.com/events/world-congress-2025/sessions/658-from-mainframe-to) · 120 min