Very realistic — with the right strategy. The German labour market is suffering from a skills shortage, and many companies are explicitly seeking experienced career changers. Success factors: a clear target role (not 'anything different'), proven transferable skills, concrete measures (certificate, project, network in target industry). Realistic expectations: 6-12 months search time and possibly a salary reduction of 10-20% in the first transitional step.
Sources & Data
Want to know how well your CV matches your target role?
Is retraining or further education worth it at 40+?
What is a transferable skills portfolio and how do I create one?
Which industries are particularly open to career changers?
What skills do I need to build for a switch to IT?
How do I apply as a career changer in IT without a degree?