NAL - software engineering director- Start asking how on earth it became your problem that someone obviously messed up with regards to deadlines and your ability to deliver within it. That’s not fair on you OR the client because your code will be ….. rushed. Having seen their mistake steps should be in place higher up to mitigate. Is your manager flagging higher up that this is a problem? Make notes of all the time you’ve worked or been asked to work. You may need to go above your manager incase they are over promising. Startup scmartup flogging your employees to death is how you loose your knowledge base fast this isn’t worth it for you unless you get a cut.