What types of tasks have you solved at your previous job that seemed inefficient or difficult?

At my previous job, I often had to work with tasks where business logic was implemented in large monolithic methods, which made maintenance and testing more difficult. For example, handling complex conditions within a single method without dividing them into separate functions led to challenges in debugging and making changes.

There were also tasks involving inefficient use of threads and synchronization, where improper resource management caused deadlocks and application crashes. This complicated scaling and reduced performance.

To address such issues, it is useful to apply SOLID principles, break tasks into small, reusable components, and use modern tools for profiling and testing.