Working on existing, bad quality code is the biggest nightmare for me. My philosophy is to think about a problem a lot, and write as few and as concise code as possible. Even delete code if not necessary. I am working alone on 180.000 lines of really bad quality Java code with copy-pastes, and its own 'web framework' and using all the buzzword technologies like Spring everywhere. The business requirements are not that complicated (although boring like hell) 20.000 lines of really high quality code would solve the problem I think. It has been created by 3 people for not too much money. I've reached the point that it is impossible that I can ever refactor this alone, as there is no time for that an my manager is micromanaging very much. It is extremely hard to put in new features because I have no mental model for how to do things in this 'framework' (an undocumented mess. and I've spoken with the author: he could not explain the philosophy behind it.) I am so unmotivated that I go to math/programming forums and I solve math/algorithmization problems for some fun when I should work. At the darkest times I find out math quizzes for myself or just think about P vs. NP (which is depressing as there is no chance to solve that). But I need the money, and there are not much interesting jobs where I live.

And I feel that there are people who could be a bit better at what I do now: people with very very good memory. Maintaining a huge illogical mess needs very good memory and nothing else. I don't have very good memory. That's why I love logical and conciese solutions which have 'philosophy' behind them.