What you're observing are effects, not causes, so don't be so quick to judge your peers. If quality really is low and deadlines are problematic, perhaps you could read up on your Agile Methodology and gently nudge that into this workplace by acting as an example.
Much of the advice I read here is about placing limitations and making your job sustainable which is an essential part of e.g. SCRUM. You working your arse off will not help, indeed., so that would be a priority, or you won't be able to do anything else.
http://en.wikipedia.org/wiki/Scrum_(development)
What you're observing are effects, not causes, so don't be so quick to judge your peers. If quality really is low and deadlines are problematic, perhaps you could read up on your Agile Methodology and gently nudge that into this workplace by acting as an example. Much of the advice I read here is about placing limitations and making your job sustainable which is an essential part of e.g. SCRUM. You working your arse off will not help, indeed., so that would be a priority, or you won't be able to do anything else. http://en.wikipedia.org/wiki/Scrum_(development)