If you're planning on working there for 10+ years and you are well treated, do glue work. Otherwise do flashy stuff. First, you can change jobs any time to make

If you're planning on working there for 10+ years and you are well treated, do glue work. Otherwise do flashy stuff. First, you can change jobs any time to make it someone else's problem, and second, it you can always blame the "unglued" code for any of your own inefficiencies/f'ups.